CN206246168U - A kind of hydraulic tappet with fluid reflux and filter function - Google Patents
A kind of hydraulic tappet with fluid reflux and filter function Download PDFInfo
- Publication number
- CN206246168U CN206246168U CN201621344370.8U CN201621344370U CN206246168U CN 206246168 U CN206246168 U CN 206246168U CN 201621344370 U CN201621344370 U CN 201621344370U CN 206246168 U CN206246168 U CN 206246168U
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- China
- Prior art keywords
- plunger
- oil
- tappet
- tappet body
- fluid
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- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a kind of hydraulic tappet with fluid reflux and filter function,Including cam,Dregs of fat storage tank,Valve actuating push rod,Tappet body and plunger,The tappet body is arranged in the cavity inside cylinder cap,Tappet body interior is provided with plunger,Wear-resistant oil seal is arranged with the outer wall of plunger bottom side,Its upper end face connects ball seat,Plunger lower surface is provided with check valve body,Check valve body is connected by disk spring with plunger lower surface,Plunger spring is provided with tappet body below plunger,Plunger spring upper end connects plunger,Low pressure oil pocket is set in plunger between the ball seat and check valve body,High-voltage oil cavity is set in tappet body below plunger,A kind of hydraulic tappet with fluid reflux and filter function,It is easy to process,Reliability is high,Reduce the impact between part and noise,And the fluid for flowing back can be filtered,Filter the residue in fluid,Put only fluid residue and block gap between plunger and tappet body.
Description
Technical field
The utility model is related to technical field of automobile, and specifically a kind of hydraulic pressure with fluid reflux and filter function is endured
Post.
Background technology
If gapless or gap are too small in the cold state between engine valve and its driving member, when engine works,
Due to valve and its expanded by heating of driving member, it often causes valve-closing not tight, so can cause engine compresses and
Working stroke gas leakage and decline engine power, result even in that engine can not start or valve and piston occur when serious
Clash into.The method that is not closed completely by thermal expansion of valve is solved in the prior art is typically with reserved valve clearance, but due to
The presence of valve clearance, engine is operationally again the problems such as can produce shock loading and mechanicalness noise.People are in engine air
Hydraulic tappet is employed in door mechanism, hydraulic tappet can adjust the length of itself using the engine motor oil with certain pressure
Degree, to compensate the parts in valve mechanism due to the length change of the generations such as thermal expansion, abrasion and foozle, so that reachable
To the automatic purpose for eliminating valve clearance.
Hydraulic tappet employed in existing engine air valve device is required to use the machine oil of engine oil gallery
To realize its own function, to ensure that machine oil has good mobility in hydraulic tappet, often require that periodic replacement is started
Machine machine oil, to increase the oil exchange frequency, it is ensured that engine oil quality.And existing hydraulic tappet is in top pressure valve actuating push rod, very
Post chamber inner fluid passes through gap leakage between tappet and plunger and flows back, after impurity in fluid enters in tappet chamber, it is difficult to from
Gap outflow between tappet and plunger, will cause impurity in tappet chamber to be piled up for a long time, influence the use of hydraulic tappet, or even block
Gap between tappet and plunger, causes aggravation of being worn and torn between tappet and plunger, causes hydraulic tappet to damage.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic tappet with fluid reflux and filter function, above-mentioned to solve
The problem proposed in background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of hydraulic tappet with fluid reflux and filter function, including cam, dregs of fat storage tank, valve actuating push rod, tappet sheet
Body and plunger, the tappet body are arranged in the cavity inside cylinder cap, and tappet body interior is provided with plunger, plunger bottom side outer wall
On be arranged with wear-resistant oil seal, its upper end face connects ball seat, and plunger lower surface is provided with check valve body, and check valve body passes through dish
Shape spring is connected with plunger lower surface, and plunger spring is provided with the tappet body below plunger, and plunger spring upper end connects plunger,
Low pressure oil pocket is set in plunger between the ball seat and check valve body, hydraulic oil is set in the tappet body below plunger
Chamber, the tappet body and plunger upside offer fuel feed hole, fuel feed hole connection low pressure oil pocket, in fuel feed hole outside and cylinder cap
The connection of machine oil oil duct, tappet body bottom side offers spill port, spill port connection high-voltage oil cavity, in spill port outside and cylinder cap
Throttle orifice connection, throttle orifice connects entrance one way stop peturn valve, the connection of entrance one way stop peturn valve by the backflow oil duct in cylinder cap
Dregs of fat storage tank, dregs of fat tank top is provided with oil filter cylinder, and oil cleaner screen cylinder, oil cleaner screen cylinder upper end are provided with oil filter cylinder
Pressure reducing orifice is installed, pressure reducing orifice upper end is by the oil duct connection outlet one way stop peturn valve that flows back, outlet one way stop peturn valve connection
Machine oil oil duct.
As further program of the utility model：The ball seat top contacts with valve actuating push rod.
As further program of the utility model：The tappet body bottom contacts cam.
As further program of the utility model：The oil cleaner screen cylinder is internal to be connected with through hole on pressure reducing orifice.
Compared with prior art, the beneficial effects of the utility model are：It is described a kind of with fluid reflux and filter function
Hydraulic tappet, simple structure is easy to process, and reliability is high, by the oil liquid leakage and supplement of high-voltage oil cavity, constantly automatically adjusts
The active length of tappet body, so as to keep valve operation normal and the presence very close to each other of whole mechanism, reduce part it
Between impact and noise, eliminate the disadvantage of old money engine valve clearance, and the fluid that flowed back can be filtered, filter
Residue in fluid, puts only fluid residue and blocks gap between plunger and tappet body.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of oil filter cylinder in the utility model.
In figure：1- cams, 2- high-voltage oil cavities, 3- spill ports, 4- throttle orifices, 5- cylinder caps, 6- entrances one way stop peturn valve, 7- oil
Slag storage tank, 8- oil cleaner screens cylinder, 9- oil filters cylinder, 10- pressure reducing orifices, 11- outlet one way stop peturn valve, 12- machine oil oil duct, 13-
Fuel feed hole, 14- valve actuating push rods, 15- ball seats, 16- tappets body, 17- low pressure oil pocket, 18- plungers, 19- wear-resistant oil seals, 20- dish
Shape spring, 21- check valve bodies, 22- plunger springs.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1~2 are referred to, in the utility model embodiment, a kind of hydraulic tappet with fluid reflux and filter function, bag
Cam 1, dregs of fat storage tank 7, valve actuating push rod 14, tappet body 16 and plunger 18 are included, the tappet body 16 is arranged on inside cylinder cap 5
Cavity in, tappet body 16 can be slided up and down along the internal cavities of cylinder cap 5, and plunger 18 is provided with inside the tappet body 16,
Plunger 18 can be slided up and down in the inside of tappet body 16, and wear-resistant oil seal 19, wear-resistant oil seal are arranged with the bottom side outer wall of plunger 18
19 make gap sealing between plunger 18 and tappet body 16, the upper surface of the plunger 18 connection ball seat 15, the top of ball seat 15 and gas
Door push rod 14 is contacted, and the lower surface of plunger 18 is provided with check valve body 21, and check valve body 21 is by disk spring 20 and the lower end of plunger 18
Face is connected, and plunger spring 22 is provided with the tappet body 16 of the lower section of plunger 18, and connection plunger 18 in the upper end of plunger spring 22 is described to endure
The bottom of post body 16 contacts cam 1.
Low pressure oil pocket 17, the tappet of the lower section of plunger 18 are set in plunger 18 between the ball seat 15 and check valve body 21
High-voltage oil cavity 2 is set in body 16, the tappet body 16 and the upside of plunger 18 offer fuel feed hole 13, and fuel feed hole 13 connects
Logical low pressure oil pocket 17, the outside of fuel feed hole 13 connects with the machine oil oil duct 12 in cylinder cap 5, and the bottom side of tappet body 16 offers spill port
3, the connection high-voltage oil cavity 2 of spill port 3, the outside of spill port 3 connects with the throttle orifice 4 in cylinder cap 5, and throttle orifice 4 is by cylinder cap 5
Backflow oil duct connection entrance one way stop peturn valve 6, the connection dregs of fat of entrance one way stop peturn valve 6 storage tank 7, the top of dregs of fat storage tank 7 is provided with
Oil cleaner screen cylinder 8 is installed, 8 upper ends of oil cleaner screen cylinder are provided with pressure reducing orifice 10, oil cleaner screen in oil filter cylinder 9, oil filter cylinder 9
Cylinder 8 inside connected with through hole on pressure reducing orifice 10, the upper end of pressure reducing orifice 10 by the oil duct connection outlet one way stop peturn valve 11 that flows back,
The outlet connection machine oil of one way stop peturn valve 11 oil duct 12.
Operation principle of the present utility model is：The upper end of tappet body 16 is contacted by ball seat 15 with valve actuating push rod 14, tappet
The lower end of body 16 contacts with cam 1, and the effect of tappet body 16 is that the thrust of cam 1 is transmitted into valve actuating push rod 14, tappet body
16 moment contacted with cam 1, seamless operation, when engine works, worked as valve-closing, and machine oil flows into oil-feed through machine oil oil duct 12
Hole 13, high-voltage oil cavity 2 is entered hence into check valve body 21 in low pressure oil pocket 17, is pushed open, and plunger 18 is just in the oil of high-voltage oil cavity 2
Rise in the presence of pressure and plunger spring 22, compress valve actuating push rod 14, now, the climbing power of plunger 16 is not enough to overcome on valve
Tension force of spring, valve will not be opened, only eliminate between valve actuating push rod 14 and valve, valve actuating push rod 14 and ball seat 15 it
Between gap；Now, machine oil is full of in high-voltage oil cavity 2, check valve body 21 is closed in the presence of oil pressure and disk spring 20, cut
Broken oil circuit, and when cam 1 goes to working face, tappet body 16 rises, and tension force of spring is acted on by valve actuating push rod 14 on valve
On plunger 18, but now check valve body 21 is turned off making the inner fluid of high-voltage oil cavity 2 to overflow, and fluid have it is incompressible
Property causes that tappet body 16 promotes valve opening as an entirety；In the process, because oil pressure is very in high-voltage oil cavity 2
Height, wear-resistant oil seal 19 prevents fluid gap leakage between plunger 18 and tappet body 16 from going out, so as to prevent residue in fluid
Block gap between plunger 18 and tappet body 16.
Then, there is a little fluid to enter throttle orifice 4 by spill port 3, dregs of fat storage tank 7, fluid warp are entered along return flow line
After the filtering of oil cleaner screen cylinder 8 crossed in the upper end oil filter cylinder 9 of dregs of fat storage tank 7, the dregs of fat are fallen into dregs of fat storage tank 7, and entrance unidirectionally stops
Return valve 6 and put the dregs of fat in only dregs of fat storage tank 7 and flow backwards and enter high-voltage oil cavity 2, the fluid after filtering enters machine oil oil by return flow line
Road 12, so that plunger 18 shortens with the total length of tappet body 16, outlet one way stop peturn valve 11 puts oil in only machine oil oil duct 12
Liquid enters oil filter cylinder 9 by return flow line, realizes the filtration treatment to machine oil.The tappet sheet when cam 1 turns over working face
Body 16 declines, valve-closing, and the oil pressure in the chamber of high-voltage oil cavity 2 also declines therewith, and then the machine oil of machine oil oil duct 12 is pushed away once more
In the injection high-voltage oil cavity 2 of opening one-way valve body 21, fluid is supplemented, more than repetitive cycling acted.
By the oil liquid leakage and supplement of high-voltage oil cavity 2, the active length of tappet body 16 is constantly automatically adjusted, so as to protect
Valve operation normally whole mechanism presence very close to each other is held, the impact between part and noise is reduced, old money is eliminated
The disadvantage of engine valve clearance, and the fluid for flowing back can be filtered, the residue in fluid is filtered, put only fluid residue
Block gap between plunger 18 and tappet body 16.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (4)
1. a kind of hydraulic tappet with fluid reflux and filter function, including cam, dregs of fat storage tank, valve actuating push rod, tappet body
And plunger, it is characterised in that the tappet body is arranged in the cavity inside cylinder cap, and tappet body interior is provided with plunger, post
Wear-resistant oil seal is arranged with plug bottom side outer wall, its upper end face connects ball seat, and plunger lower surface is provided with check valve body, unidirectionally
Valve body is connected by disk spring with plunger lower surface, plunger spring is provided with the tappet body below plunger, on plunger spring
End connection plunger, is set to low pressure oil pocket, in the tappet body below plunger in the plunger between the ball seat and check valve body
High-voltage oil cavity is set to, the tappet body and plunger upside offer fuel feed hole, fuel feed hole connection low pressure oil pocket, fuel feed hole
Outside connects with the machine oil oil duct in cylinder cap, and tappet body bottom side offers spill port, spill port connection high-voltage oil cavity, spill port
Outside connects with the throttle orifice in cylinder cap, and throttle orifice connects entrance one way stop peturn valve, entrance list by the backflow oil duct in cylinder cap
Dregs of fat storage tank is connected to check-valves, dregs of fat tank top is provided with oil filter cylinder, oil cleaner screen cylinder is installed in oil filter cylinder,
Oil cleaner screen cylinder upper end is provided with pressure reducing orifice, and pressure reducing orifice upper end is by the oil duct connection outlet one way stop peturn valve that flows back, and outlet is single
Machine oil oil duct is connected to check-valves.
2. a kind of hydraulic tappet with fluid reflux and filter function according to claim 1, it is characterised in that the ball
Seat top contacts with valve actuating push rod.
3. a kind of hydraulic tappet with fluid reflux and filter function according to claim 1, it is characterised in that it is described very
Post body bottom contacts cam.
4. a kind of hydraulic tappet with fluid reflux and filter function according to claim 1, it is characterised in that the filter
Oil network cylinder is internal to be connected with through hole on pressure reducing orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344370.8U CN206246168U (en) | 2016-12-08 | 2016-12-08 | A kind of hydraulic tappet with fluid reflux and filter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344370.8U CN206246168U (en) | 2016-12-08 | 2016-12-08 | A kind of hydraulic tappet with fluid reflux and filter function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246168U true CN206246168U (en) | 2017-06-13 |
Family
ID=59005646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621344370.8U Expired - Fee Related CN206246168U (en) | 2016-12-08 | 2016-12-08 | A kind of hydraulic tappet with fluid reflux and filter function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246168U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545613A (en) * | 2018-10-26 | 2019-03-29 | 安徽森力汽车电子有限公司 | A kind of oil-insulation high voltage connector |
| CN112912596A (en) * | 2018-09-10 | 2021-06-04 | 雅各布斯车辆系统公司 | Lost motion variable valve actuation system and method |
| CN116201620A (en) * | 2023-01-31 | 2023-06-02 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
-
2016
- 2016-12-08 CN CN201621344370.8U patent/CN206246168U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112912596A (en) * | 2018-09-10 | 2021-06-04 | 雅各布斯车辆系统公司 | Lost motion variable valve actuation system and method |
| CN109545613A (en) * | 2018-10-26 | 2019-03-29 | 安徽森力汽车电子有限公司 | A kind of oil-insulation high voltage connector |
| CN116201620A (en) * | 2023-01-31 | 2023-06-02 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
| CN116201620B (en) * | 2023-01-31 | 2024-05-17 | 重庆长安汽车股份有限公司 | Hydraulic tappet, engine and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20191208 |