CN102128333B - Sealing pin of pipeline for spraying use of high-pressure fuel and pipeline used for spraying use of high-pressure fuel with the same - Google Patents
Sealing pin of pipeline for spraying use of high-pressure fuel and pipeline used for spraying use of high-pressure fuel with the same Download PDFInfo
- Publication number
- CN102128333B CN102128333B CN 201110021595 CN201110021595A CN102128333B CN 102128333 B CN102128333 B CN 102128333B CN 201110021595 CN201110021595 CN 201110021595 CN 201110021595 A CN201110021595 A CN 201110021595A CN 102128333 B CN102128333 B CN 102128333B
- Authority
- CN
- China
- Prior art keywords
- link block
- pipeline
- pressure
- peripheral part
- slit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a sealing pin of pipeline for spraying use of high-pressure fuel and pipeline used for the spraying use of the high-pressure fuel with the same. The sealing pin (20) is provided with the following components: a slit (22) which is provided at an axial center at an end of the sealing pin that is inserted into a pipeline opening (23) and is provided with a base (22'); and a sealing pin end periphery part (25) which contacts a conical part (23') at an inside part of the pipe opening (23), wherein the sealing pin end periphery part (25) deforms in an elastic area because of ultra-high inner pressure and contacts with the conical part (23').
Description
Technical field
The present invention relates to a kind of be used under ultrahigh pressure fuel under high pressure spray the self-tightening processing of the pipeline of purposes claim again internal surface autofrettage (autofrettage) be used for be sealed in the link block of tapered portion of pipeline opening inboard that sprays the pipeline of purposes for fuel under high pressure, and relate to a kind of fuel under high pressure for using the sealing pin and spray the pipeline of purposes.
Background technique
In the past, see as DE102006054440 B3, the open No.2004-92551 of Japanese unexamined patent publication No. etc., become known for being used for fuel under high pressure at common rail and other and spray the technology that the pipeline of purposes prevents fatigue fracture enduringly, that is to say the technology that applies high pressure under sealing state, in order to stay residual stress in the material microstructure, thereby improve intensity (self-tightening processing).Together with the rising of the pressure setting of the fuel system that is used for the diesel engine purposes, make equally the internal pressure in self-tightening processing higher.In particular, when applying 800Mpa or higher internal pressure, need to prevent the leakage at pipeline connection port place.In this case, sealing cover available on the market has too low sealing resistance to pressure and comes to an end with leakage, therefore can not be as sealing.
In DE102006054440 B3, by conical sealed end being pressed on the opening of workpiece by the oil hydraulic cylinder applied pressure, sealed end seals the opening of workpiece thus.Power and the internal pressure that thus, can be used in the opening of sealed end sealing workpiece increase pro rata.In such sealing system, be used for controlling with the pressure of the oil hydraulic cylinder of internal pressure balance and become complicated.Oil hydraulic pump, high-speed response control valve, and a large amount of other annexes become essential, result, it is higher that cost finally becomes.When passing through such system automation, because workpiece is carried by Trayconcept, so the cost of tray apparatus increases sharply.The type of the workpiece of being carried by pallet in addition, is always not identical.In this case, the opening of workpiece in the position at pallet place constant position always not.For this reason, in automation, when changing type, the opening of workpiece with for being connected of the sealed end that seals described opening very difficult, and go wrong in setting.
Summary of the invention
Consider that the problems referred to above make the present invention, and the invention provides be used under ultrahigh pressure fuel under high pressure spray purposes pipeline self-tightening processing be used for be sealed in for fuel under high pressure spray purposes pipeline the pipeline opening inboard tapered portion link block and be used for using the fuel under high pressure of sealing pin to spray the pipeline of purposes.
In order to address this problem, the invention of claim 1 is included in the link block (20) that the self-tightening processing of spraying the pipeline of purposes under ultrahigh pressure for being used for fuel under high pressure seals the pipeline opening (23) of the pipeline that is used for fuel under high pressure injection purposes, wherein said link block (20) is provided with: slit (22), this slit is arranged on the axial centre place of the link block end at Inserting Tube road junction (23), and has bottom (22'); And link block end peripheral part (25), the peripheral part contact of sealing pin end is in the inboard tapered portion (23') of pipeline opening (23), wherein link block end peripheral part (25) is because the internal pressure of ultrahigh pressure is out of shape in elastic region, and contact tapered portion (23').
Thus, even self-tightening adds in the situation of ultrahigh pressure in man-hour, also can prevent the leakage of pipeline opening, and can eliminate for the pressure control of the oil hydraulic cylinder of internal pressure balance and oil hydraulic pump, high-speed response control valve, and other annexes.In particular, the slit that is arranged on the axial centre place of link block end stands internal pressure, so link block end peripheral part internal pressure due to ultrahigh pressure in elastic region is out of shape, and with high sealing resistance to pressure close contact tapered portion.
The invention of claim 2 comprises the invention of claim 1, and wherein link block end peripheral part (25) has the cross section arc.Thus, can guarantee to eliminate from contact segment the surface pressure of revealing.
The invention of claim 3 comprises the invention of claim 1, and wherein the edge section of the bottom (22') of slit (22) is provided with rounding or this bottom (22') is spherical.Thus, can suppress widely the stress that produces, and improve material without the pressure capacity of fatigue fracture.
The invention of claim 4 comprises the invention of any one in claim 1, wherein add man-hour when carrying out self-tightening with the maximum value of 800Mpa or higher internal pressure, when tapered bore (D1) was appointed as " 1 ", link block had the external diameter (D2), about 0.7 slit internal diameter (d) of about 1.08 link block peripheral part (26) and the geomery of about 0.4 groove depth (H1).
The invention of claim 5 comprises the invention of any one in claim 1, and wherein the material of link block has 210Gpa or higher Young's modulus and 1500Mpa or higher yield point.
The invention of claim 6 comprises the pipeline that sprays purposes for fuel under high pressure, it keeps the link block (20) of the invention of claim 1 to 5 in block (21), to block a shot (21) be tightened on the pipeline opening (23) of spraying the pipeline of purposes for fuel under high pressure with screw thread, and add man-hour when carrying out self-tightening with the maximum value of 800Mpa or higher internal pressure, by link block (20) sealed pipe road junction (23).
Thus, can obtain the effect similar to the invention of claim 1.
Be to be noted that above appended reference character is the corresponding example that shows with specific embodiment described below.
Description of drawings
These and other purpose of the present invention and feature will become clearer by the explanation of the preferred embodiment that provides below with reference to accompanying drawing, wherein:
Fig. 1 is the overall perspective that forms the comparison techniques on basis of the present invention;
Fig. 2 is the sectional view of wanting section of the comparison techniques of Fig. 1;
Fig. 3 is the explanatory drawing that schematically shows the comparison techniques of Fig. 1;
Fig. 4 is the explanatory drawing that schematically shows embodiments of the invention;
Fig. 5 is the enlarged portion of wanting section that embodiments of the invention are shown; And
Fig. 6 is the enlarged view that the part A of Fig. 5 is shown.
Embodiment
Below, with reference to the description of drawings embodiments of the invention.In an embodiment, the part of same structure is distributed identical reference character, and with description thereof is omitted.The part of the structure that the comparison techniques with forming basis of the present invention of the embodiment of the present invention is identical is same distributes identical reference character, and description thereof is omitted.
Fig. 1 is the overall perspective that forms the comparison techniques on basis of the present invention.Fig. 2 is the sectional view of wanting section of the comparison techniques of Fig. 1.Fig. 3 is the explanatory drawing of profile that the comparison techniques of Fig. 1 is shown.
Before the explanation embodiments of the invention, referring to figs. 1 to 3, the comparison techniques that forms basis of the present invention is described.In Fig. 2, be placed with the workpiece 1 for self-tightening processing on pallet 10.In the pipeline opening 23 of workpiece 1, the conical butt sealed end 5' of insert-seal pin 5.The other end of link block 5 has part in compression 6.Can be pressed on link block 5 by pressure P by the crimping section 8 of the extruding such as oil hydraulic cylinder.Link block 5 is provided with flange 7.Spring 9 is exerted pressure to link block 5 in advance towards the pipeline opening 23 of workpiece 1.
Schematically shown in Figure 3, workpiece 1 is under the state of sealing and stands internal pressure p (as an example, 800Mpa or higher maximum pressure), to leave residual stress in the material microstructure of workpiece 1, thereby raising intensity that is to say for self-tightening and processes.In utilizing such sealing system, be used for controlling with the pressure of the oil hydraulic cylinder of internal pressure balance and become complicated.Oil hydraulic pump, high-speed response control valve, and a large amount of other annexes become essentially, therefore, cost finally rises.When such system is used for automation, because workpiece is carried by Trayconcept, so the cost of tray apparatus increases.The type of the workpiece of being carried by pallet in addition, is always not identical.Under these circumstances, the position of the opening of workpiece on pallet is always inconstant.For this reason, when making operation automation, when changing type, the opening of workpiece with become very difficult for being connected between the sealed end that seals described opening, and go wrong in setting.
Form contrast with said circumstances, embodiments of the invention are as follows:
Fig. 4 is the explanatory drawing that schematically shows embodiments of the invention.Fig. 5 is the enlarged view of wanting section that embodiments of the invention are shown.Fig. 6 is the enlarged view that the part A of Fig. 5 is shown.
As shown in Figure 4 and 5, the workpiece 1 that is used for self-tightening processing under ultrahigh pressure is provided with pipeline opening 23.The peripheral part of pipeline opening 23 is threaded, and has the block 21 that is fastened to described pipeline opening by screwing.As shown in Figure 5, in block 21, arrange porosely 32, link block 20 inserts in these holes.Reference character 30 and 31 is drain boles.
Each link block 20 has the peripheral part that is comprised of link block peripheral part 26 and link block end peripheral part 25.The part of link block end peripheral part 25 is at the interior contact tapered portion of pipeline opening 23 23'.Link block end peripheral part 25 is preferably the cross section arc of radius R 1.Link block end peripheral part 25 is not limited to above arc or arc, and can also be any curved surface that comprises conical surface.In addition, the axial centre place of 23 link block end, be provided with the slit 22 with bottom 22' at the Inserting Tube road junction.Edge part office at the bottom of slit 22 22' is provided with the R part.Bottom 22' can also be spherical surface.
Adjust the circumference of each pipeline opening 23, make when rotating block 21, the part of link block end peripheral part 25 is with the tapered portion 23' of predetermined pressure contact in pipeline opening 23 inboards.
Schematically shown in Figure 4, to block a shot and 21 be placed on workpiece 1 that workpiece 1 sealing is in closed state, then, apply internal pressure p (as an example, 800Mpa or higher maximum pressure), thereby improve intensity to leave residual stress in the material microstructure of workpiece 1, that is to say for self-tightening and process.At this moment, be used to the power of the internal pressure p of autonomous hydraulic power, with cause as at 22'' place, the side of slit 22, that is to say the power that link block 20 is out of shape along the direction of link block end peripheral part 25, thereby link block 20 is out of shape by radially expanding.The slit 22 that is arranged on the axial centre place of link block end stands internal pressure, so the part of link block end peripheral part 25 is out of shape in elastic region by the internal pressure of ultrahigh pressure and is forced to high sealing resistance to pressure close contact tapered portion 23'.
Thus, can tackle the possibility that is sealed to of ultrahigh pressure.At this, " ultrahigh pressure " indication is used for the pressure of the common rail of diesel engine purposes.As an example, the pressure of the about hundreds of Mpa of ultrahigh pressure indication.
Be out of shape due to the ultrahigh pressure internal pressure of 800Mpa or higher maximum pressure in elastic region when link block end peripheral part 25 and when contacting tapered portion 23', will describe as an example shape of link block.By test and Analysis deterrmination size value, but the present invention is not limited to described size value.
As shown in Figure 6, add man-hour when carrying out self-tightening with 800Mpa or higher internal pressure maximum value, when with the inner diameter D 1 (D1 is between 3 to 5mm) of tapered portion 23' when being appointed as " 1 ", the ratio of the geomery of each link block is: the D outer diameter 2 of link block peripheral part is that about 0.7, groove depth H1 is about 0.4 for about 1.08, slit inner diameter d.The radius R 1 of link block end peripheral part 25 can be about 1/2 of D outer diameter 2 as an example.At this, " approximately " be illustrated in respective value 10% in.
In this case, the external diameter of each link block be set as the inner diameter D 1 of tapered portion 23' hole (hole in the inboard of pipeline opening 23) about 10%, so that become possibility with reliable contact of tapered portion 23', but it is about 1.08 that the D outer diameter 2 of link block peripheral part is not limited to, and can set for suitably in order to make with reliable contact of tapered portion 23' and become possibility.Other ratios also can be set for corresponding with the D outer diameter 2 of link block peripheral part suitably, so that the distortion that the internal pressure by ultrahigh pressure is caused becomes possibility with contacting.
In above embodiment, as an example, add man-hour when carrying out self-tightening with the maximum value of 800Mpa or higher internal pressure p, when tapered bore D1 is appointed as " 1 ", the geomery of link block 20 be the first numerical value of 1.08 or before and after the first numerical value 10% with interior link block peripheral part D2,0.7 second value before and after second value 10% with the third value of interior slit internal diameter (d) and 0.4 or before and after third value 10% with interior groove depth (H1).The present invention is not limited to the numerical value of this example.Enough is, sets suitably D outer diameter 2 and other ratios of link block peripheral part, makes link block end peripheral part 25 be out of shape in elastic region also and can contact reliably tapered portion 23' due to the internal pressure of ultrahigh pressure.
The material of link block must have 210Gpa or higher Young's modulus and 1500Mpa or higher yield point.As an example, can mention SHK51 (JIS) etc., but importantly, material can be out of shape in elastic region for contact, and can not rupture.
As shown in Figure 5, preferably, link block 20 is out of shape in elastic region, and the tapered portion 23' in contact pipeline opening 23, and a part that makes link block end peripheral part 25 is owing to adhering to closely with fastening and be connected with tapered portion.In addition, can be in the edge part office acquisition contact of the innermost circumference of tapered portion 23'.In this case, the shape of link block end peripheral part 25 can be the cone shape of about 60 degree cone angles.
Has internal pressure 800Mpa or the thinking behind of higher peaked superhigh pressure sealing condition is as follows.
1. guarantee leak free surface pressure (guaranteeing sealing force) in the contacting part office.
2. suppress the stress that produces and satisfy material without the pressure capacity (elastic region even has distortion) of fatigue fracture.
For the pipeline opening that is formed with the mouth that outwards opens with taper, above-mentioned 1 in order to process, making the contact segment of link block end peripheral part 25 is arc.Above-mentioned 2 in order to process, give 22' bight, the bottom R (rounding) of slit 22.As the effect of the bight R of the bottom 22' of slit 22, can mention and avoid stress to concentrate and guarantee wall thickness, to produce the intensity that strengthens.
Below will illustrate and utilize link block 20 of the present invention to be used for the process (method) of self-tightening processing.Workpiece 1 is fastened to pallet 10.As the step before self-tightening processing, will block a shot and 22 be fastened to pipeline opening by screwing machinery.Next, carry out self-tightening processing.Thus, workpiece 1 stands high pressure under sealing state, and leaves residual stress in the material microstructure, thereby improves intensity.After this, in subsequent step, will screw machinery and be used for removing block 20 from pipeline opening 23.Be to be noted that Work transfer device need not specifically to be confined to pallet 10.This Work transfer device only needs to make location and conveying to become possibility.
Although described the present invention with reference to the specific embodiment who selects for purpose of illustration, in the situation that do not depart from basic conception of the present invention and scope, obviously can make many modification to the present invention by those skilled in the art.
Claims (6)
1. a self-tightening that sprays the pipeline of purposes under ultrahigh pressure for being used for fuel under high pressure is processed the link block (20) of the pipeline opening (23) that seals the pipeline that is used for fuel under high pressure injection purposes, wherein
Described link block (20) is provided with:
Slit (22), described slit are arranged on the axial centre place of the link block end of inserting described pipeline opening (23), and have bottom (22'); And
Link block end peripheral part (25), the contact of described link block end peripheral part be in the inboard tapered portion (23') of described pipeline opening (23),
Wherein said link block end peripheral part (25) is because the internal pressure of ultrahigh pressure is out of shape in elastic region, and contacts described tapered portion (23').
2. link block according to claim 1, wherein said link block end peripheral part (25) has the cross section arc.
3. link block according to claim 1, the edge section of the described bottom (22') of wherein said slit (22) is provided with rounding or described bottom (22') is spherical.
4. link block according to claim 1, wherein add man-hour when carrying out self-tightening with the maximum value of 800Mpa or higher described internal pressure, when described tapered portion internal diameter (D1) was appointed as " 1 ", described link block had the external diameter (D2), about 0.7 slit internal diameter (d) of about 1.08 link block peripheral part (26) and the geomery of about 0.4 groove depth (H1).
5. link block according to claim 1, the material of wherein said link block has 210Gpa or higher Young's modulus and 1500Mpa or higher yield point.
6. be used for the pipeline that fuel under high pressure is sprayed purposes, this pipeline keeps the described link block of claim 1 to 5 any one (20) in block (21), to block a shot (21) be tightened on the pipeline opening (23) of spraying the pipeline of purposes for fuel under high pressure with screw thread, and add man-hour when carrying out self-tightening with the maximum value of 800Mpa or higher internal pressure, seal described pipeline opening (23) by described link block (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010008943A JP5340184B2 (en) | 2010-01-19 | 2010-01-19 | High pressure fuel injection pipe seal pin |
| JP2010-008943 | 2010-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102128333A CN102128333A (en) | 2011-07-20 |
| CN102128333B true CN102128333B (en) | 2013-05-08 |
Family
ID=44257076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110021595 Expired - Fee Related CN102128333B (en) | 2010-01-19 | 2011-01-19 | Sealing pin of pipeline for spraying use of high-pressure fuel and pipeline used for spraying use of high-pressure fuel with the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5340184B2 (en) |
| CN (1) | CN102128333B (en) |
| DE (1) | DE102011000121A1 (en) |
| FR (1) | FR2955273B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255478A (en) * | 2011-06-08 | 2012-12-27 | Denso Corp | Sealing system and sealing method |
| US9133802B2 (en) | 2013-05-09 | 2015-09-15 | Caterpillar Inc. | Device for sealing orifices on nozzle of fuel injector for autofrettage process |
| GB201501987D0 (en) * | 2015-02-06 | 2015-03-25 | Delphi International Operations Luxembourg S.�.R.L. | Method to manufacture a common rail |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316159C (en) * | 2002-09-02 | 2007-05-16 | 臼井国际产业株式会社 | Common rail for diesel engine |
| DE102006054440B3 (en) * | 2006-11-16 | 2007-12-13 | Maximator Gmbh | Autofrettage method for a fuel injection system of a diesel engine comprises reducing the volume for the fluid using a displacement plunger displaced by a plunger opening of a workpiece in the inner chamber of the workpiece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3337391B2 (en) * | 1997-02-07 | 2002-10-21 | 株式会社オティックス | Metal seal structure for fuel injection system of automotive diesel engine |
| JP3768043B2 (en) * | 1999-09-10 | 2006-04-19 | 臼井国際産業株式会社 | Connection structure of branch connection for common rail |
| US6463909B2 (en) * | 2000-01-25 | 2002-10-15 | Usui Kokusai Sangyo Kaisha Limited | Common rail |
| WO2002029238A1 (en) * | 2000-10-03 | 2002-04-11 | Detroit Diesel Corporation | High-pressure common fuel rail system for internal combustion engine |
| JP4601517B2 (en) * | 2005-08-26 | 2010-12-22 | 臼井国際産業株式会社 | Sealing method for common rail |
| BRPI0708863B1 (en) * | 2006-03-14 | 2019-06-04 | Usui Co., Ltd. | CONNECTION HEAD STRUCTURE FOR HIGH PRESSURE FUEL INJECTION TUBES |
| JP5178176B2 (en) * | 2007-12-17 | 2013-04-10 | 臼井国際産業株式会社 | Connecting head structure of high-pressure fuel injection pipe |
-
2010
- 2010-01-19 JP JP2010008943A patent/JP5340184B2/en not_active Expired - Fee Related
-
2011
- 2011-01-13 DE DE201110000121 patent/DE102011000121A1/en not_active Ceased
- 2011-01-14 FR FR1150294A patent/FR2955273B1/en not_active Expired - Fee Related
- 2011-01-19 CN CN 201110021595 patent/CN102128333B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316159C (en) * | 2002-09-02 | 2007-05-16 | 臼井国际产业株式会社 | Common rail for diesel engine |
| DE102006054440B3 (en) * | 2006-11-16 | 2007-12-13 | Maximator Gmbh | Autofrettage method for a fuel injection system of a diesel engine comprises reducing the volume for the fluid using a displacement plunger displaced by a plunger opening of a workpiece in the inner chamber of the workpiece |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-82664A 2001.03.30 |
| JP特开平10-221192A 1998.08.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011149282A (en) | 2011-08-04 |
| DE102011000121A1 (en) | 2011-09-01 |
| CN102128333A (en) | 2011-07-20 |
| FR2955273B1 (en) | 2016-01-01 |
| JP5340184B2 (en) | 2013-11-13 |
| FR2955273A1 (en) | 2011-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20240301976A1 (en) | Pipe end fitting with improved venting | |
| CN101463781B (en) | Connection head structure of high pressure fuel injection tube | |
| CN101180464B (en) | High pressure piston pump for fuel jet device of the internal combustion engine | |
| KR20010006382A (en) | Ferrule with relief to reduce galling | |
| CN102128333B (en) | Sealing pin of pipeline for spraying use of high-pressure fuel and pipeline used for spraying use of high-pressure fuel with the same | |
| EP3253962A1 (en) | Method to manufacture a common rail | |
| KR20000058048A (en) | Method of manufacturing common rails | |
| CN110805761A (en) | Aviation high-pressure beam type pipe joint | |
| US10655763B2 (en) | Pipe connection | |
| US9765915B2 (en) | Sealing device | |
| CN205888121U (en) | Lathe is with dabber that rises outward | |
| US4791716A (en) | Method and apparatus for securing a connector to a pipe | |
| KR20170102547A (en) | Connecting device for forming hydraulic connection | |
| CN101389851B (en) | Structure for connecting head portion of high-pressure fuel injection tube | |
| CN203809186U (en) | Device used for sealing one or multiple orifices, used for pressurizing fluid, on container | |
| US20120131981A1 (en) | Cold Forged Stub End | |
| JPS61286683A (en) | Valve assembly | |
| EP3249212A1 (en) | Common rail | |
| US20170097027A1 (en) | Method for Pressing a Ball Together with a First Component, and a Component Connection | |
| CN204852775U (en) | Pipeline leaking point shutoff instrument | |
| WO2020216814A1 (en) | Common rail assembly | |
| JP2012036961A (en) | Pipe joint structure | |
| EP3387311B1 (en) | A tube-to-tube connection device and method of same | |
| JP7360253B2 (en) | fluid pressure cylinder | |
| CN210179164U (en) | Detachable stuffy plug unit and detachable stuffy plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kariya City, Aichi Prefecture, Japan Co-patentee after: Denso Daishin Corporation Patentee after: Denso Co., Ltd. Address before: Kariya City, Aichi Prefecture, Japan Co-patentee before: Daishin Seiki Co., Ltd. Patentee before: Denso Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20200119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |