CN102678403B - Half-moon wedge shaped resonance intake pipe - Google Patents
Half-moon wedge shaped resonance intake pipe Download PDFInfo
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- CN102678403B CN102678403B CN201210185924.4A CN201210185924A CN102678403B CN 102678403 B CN102678403 B CN 102678403B CN 201210185924 A CN201210185924 A CN 201210185924A CN 102678403 B CN102678403 B CN 102678403B
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- intake manifold
- resonant cavity
- intake
- resonance
- manifold
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Abstract
The invention aims at providing a half-moon wedge shaped resonance intake pipe, which comprises an intake manifold, a resonant cavity, an induction manifold, a pressure inlet and a flange, wherein the intake manifold, the resonant cavity, the induction manifold and the pressure inlet are connected in sequence; the induction manifold comprises an upper half section of the induction manifold and a lower half section of the induction manifold, the upper half section of the induction manifold is connected with the lower half section of the induction manifold through the flange; the resonance cavity comprises a lateral surface of the resonance cavity, a cambered surface of the resonance cavity and a bottom surface of the resonance cavity, the lateral surface of the resonance cavity is half-moon-shaped, the cambered surface of the resonance cavity is in a shape of a wedge with a wide top and a narrow bottom, the resonance cavity is integrally half-moon wedge shaped, and the upper half section of the induction manifold is connected with the bottom surface of the resonance cavity. According to the invention, a gas pressure is converted by utilizing gas flow speed, so that the problem of descending of power density of a gas engine due to an unsatisfactory resonance effect is improved, a gas streamline is organized well, a resonance rotating speed range is expanded, and a gas flow loss is reduced, thus the dynamic property, the economy and the emission performance of the gas engine are improved.
Description
Technical field
What the present invention relates to is a kind of motor, the specifically admission gear of motor.
Background technique
Day by day serious along with energy crisis and environmental pollution, country actively puts into effect various policies, encourages internal-combustion engine to manufacture the various energy-conserving and emission-cutting technologies of producer's active development.Rock gas is with its combustion cleaning, and the large and reserves of calorific value are abundant becomes the outstanding choosing that replaces fuel.But rock gas is gaseous fuel, mix while then entering cylinder at intake duct, occupy a part of air inlet charge, thereby the air quantity that enters cylinder is declined, therefore under the same terms, the specific power of gas engine is lower than diesel engine or petrol engine.Make up the defect of specific power decline and adopt air inlet harmonic technology in order to improve air inlet charge, due to the periodicity opening and closing of intake valve and the linear reciprocating motion of piston, can cause that in admission line, gas pressure becomes periodically large minor swing, can determine a certain resonance rotating speed by the rationalization structural design to resonant cavity and intake manifold, under this rotating speed, can ensure to fluctuate in crest state when IO Intake Valve Opens moment gas pressure, thereby increase gas pressure, reaches the object that increases air inlet charge and improve intake efficiency.But when in variable speed working environment lower time, resonance effect will weaken, even in the time that rotating speed is set to trough and arrives, IO Intake Valve Opens can play minus effect, thereby reduces air inlet charge, and gas engine specific power is further declined.
Summary of the invention
The object of the present invention is to provide the first quarter moon wedge shape resonant intake tube of the power character, Economy and the emission performance that improve gas engine.
The object of the present invention is achieved like this:
First quarter moon wedge shape resonant intake tube of the present invention, is characterized in that: comprise intake manifold, resonant cavity, intake manifold, pressure inlet, flange, intake manifold, resonant cavity, intake manifold, pressure inlet are connected successively; Intake manifold comprises intake manifold upper semisection and intake manifold lower semisection, and intake manifold upper semisection and intake manifold lower semisection link together by flange; Described resonant cavity comprises interconnective resonant cavity side, resonant cavity cambered surface, resonant cavity bottom surface, resonant cavity side is semilune, resonant cavity cambered surface is wedge shape wide at the top and narrow at the bottom, and resonant cavity entirety is first quarter moon wedge shape, and intake manifold upper semisection is connected with resonant cavity bottom surface.
The present invention can also comprise:
1, described intake manifold's entirety is micro-tubaeform, and intake manifold's resonant cavity cambered surface adopts round-corner transition to connect, and intake manifold's inside and outside wall is tangent with resonant cavity side inside and outside wall respectively, and intake manifold is identical with the wall thickness of resonant cavity.
2, the inside and outside wall of the arm of described intake manifold upper semisection is tangent with the inside and outside wall of resonant cavity side respectively, and the arm at intake manifold upper semisection two ends overlaps with the circular arc wall of resonant cavity cambered surface, and intake manifold upper semisection is identical with the wall thickness of resonant cavity.
3, described pressure inlet connects the variable cross section pipeline that is become gradually square tube by pipe, and end flange is installed on variable cross section pipeline.
Advantage of the present invention is: the present invention utilizes gas flow rates to change into gas pressure, thereby improve the undesirable and gas engine specific power decline problem that causes of resonance effect, better organize gas streamline, expansion resonance speed range, reduce gas flow loss, thereby improve power character, Economy and the emission performance of gas engine.
Brief description of the drawings
Fig. 1 is overall construction drawing of the present invention;
Fig. 2 is overall side view of the present invention;
Fig. 3 is suction tude epimere structural drawing of the present invention;
Fig. 4 is upper-lower section sheet gasket structure figure of the present invention;
Fig. 5 is suction tude hypomere structural drawing of the present invention;
Fig. 6 is suction tude hypomere side-looking structural drawing of the present invention.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～6, the present invention includes: intake manifold 1, resonant cavity 2, intake manifold upper semisection 3, intake manifold lower semisection 4 and pressure inlet 5.Resonant cavity 2 entirety are first quarter moon wedge shape, intake manifold 1 is connected with the arc surface 8 of resonant cavity 2, the arc surface 8 of resonant cavity 2 is by intake manifold's 1 center line structure axisymmetricly, intake manifold 1 wall thickness is identical with the wall thickness of resonant cavity 2, intake manifold's 1 outer wall and resonant cavity 2 both sides, front and back semilune walls 7 are tangent, together with four intake manifold upper semisections 3 are cast in resonant cavity bottom surface 9, the wall thickness of intake manifold upper semisection 3 is identical with the wall thickness of resonant cavity 2, and the inwall of manifold upper semisection 3 and outer wall are all tangent with inwall and the outer wall of resonant cavity 2 both sides semilune walls 7, be positioned at the intake manifold of resonant cavity both sides and arc surface 8 ends of resonant cavity 2 overlap, intake manifold lower semisection 4 is with pressure inlet 5.The cavity that resonant cavity 2 is encircled a city by side 7, cambered surface 8 and bottom surface 9, its entirety presents first quarter moon wedge shape, and side 7 is semilune, and cambered surface 8 side direction views present wedge shape wide at the top and narrow at the bottom.Intake manifold is made up of manifold upper semisection 3 and manifold lower semisection 4, intake manifold upper semisection 3 is connected with the bottom surface 9 of resonant cavity 2, the wall thickness of manifold upper semisection is identical with resonant cavity 2, the manifold 11 of manifold upper semisection and manifold 12 are all tangent with the inside and outside wall of the semilune side 7 of resonant cavity 2, the manifold 10 of manifold upper semisection and manifold 13, except all tangent with the inside and outside wall of the semilune side 7 of resonant cavity 2, also overlap with the circular arc wall 8 of resonant cavity 2 completely.On the each manifold of intake manifold lower semisection 3, all with a pressure inlet 5, pressure inlet 5 is near the end of intake manifold lower semisection 3, and after pressure inlet, 5 connect one section of variable cross section pipeline 21 that is crossfaded into square tube by pipe, and the end of intake manifold lower semisection 3 is flange 22.Between intake manifold upper semisection 3 and intake manifold lower semisection 4, confine and be connected by nut with 19 by rectangular flange 14.
As shown in Figure 1, 2, 3, gas enters resonant cavity 2 by intake manifold 1 through connecting fillet 6, and fillet 6 is herein tangent with intake manifold's 1 resonant cavity 2, better organize gas streamline, reduce the resistance of gas flow in process, in addition, can also increase gas and enter the pressure of resonant cavity 2.
As shown in Figure 1, 2, 3, resonant cavity 2 is semilune structure wide at the top and narrow at the bottom, does like this diameter that can increase intake manifold 1, thereby meets the demand of gas flow; Wall that resonant cavity 2 is connected with suction tude 8 is circular arc, tangent with the front and back semilune wall 7 of resonant cavity 2 respectively, and end overlaps completely with suction tude arm 10 and 13 walls, has reduced flow losses.
As shown in Fig. 2,4,5, intake manifold is divided into intake manifold upper semisection 3 and intake manifold lower semisection 4, the corresponding intake manifold elevation by-pass order of connection 10～15,11～16,12～17,13～18; Between confine and connect by bolt by gasket seal 20, also to smear sealer in joint, doing is like this tightness to prevent gas leakage in order better to ensure.
As shown in Figure 5,6, decline in order to make up suction pressure under disresonance rotating speed, the defect that gas charge declines, at intake manifold lower semisection 4 ends, pressure inlet 5 is installed, increase gas charge by gas flow rates being changed into gas pressure, expansion resonance speed range, thereby power character, Economy and the emission performance of raising gas engine.
The present invention's entirety adopts cast form manufacture.When casting, be divided into suction tude upper body, intake manifold lower branch line 15 ~ 18 and intake manifold lower semisection 4 flange 19 these three parts and cast.
For suction tude upper body, adopt three sandbox castings, first, second sandbox casting intake manifold 1, intake manifold's flange, resonant cavity 2 and intake manifold upper semisection 3 from bottom to top, mold joint is parallel with the flanged surface of intake manifold upper semisection 3 flanges 14 through intake manifold 1 center line, second sandbox dug to husky moulding, the 3rd sandbox casting intake manifold upper semisection 3 flanges 14, and reasonable arrangement of pouring system and pore, finally put into core sand, wait to be cast.
For intake manifold lower branch line 15 ~ 18, because the structure of each lower branch line is the same, therefore, just passable as long as cast a monomer arm when casting.When casting, adopt two sandbox castings, mold joint is parallel with intake manifold lower semisection 4 flanges 19 through pressure inlet 5 center lines, and second sandbox dug to husky moulding, and arrangement of pouring system and pore, puts into core sand, waits to be cast.
19 of intake manifold lower semisection 4 flanges are a lot of simple two-part moldings easily, easily produce the casting defects such as burning into sand, pore and slag inclusion while it should be noted that excessive plane casting.When moulding, flange 19 certain small angle that tilts just can be avoided.Finally intake manifold lower branch line 15 ~ 18 and intake manifold lower semisection 4 flanges 19 are weldingly connected.
Claims (2)
1. first quarter moon wedge shape resonant intake tube, is characterized in that: comprise intake manifold, resonant cavity, intake manifold, pressure inlet, flange, intake manifold, resonant cavity, intake manifold, pressure inlet are connected successively; Intake manifold comprises intake manifold upper semisection and intake manifold lower semisection, and intake manifold upper semisection and intake manifold lower semisection link together by flange; Described resonant cavity comprises interconnective resonant cavity side, resonant cavity cambered surface, resonant cavity bottom surface, resonant cavity side is semilune, resonant cavity cambered surface is wedge shape wide at the top and narrow at the bottom, and resonant cavity entirety is first quarter moon wedge shape, and intake manifold upper semisection is connected with resonant cavity bottom surface;
Described intake manifold's entirety is micro-tubaeform, and intake manifold's resonant cavity cambered surface adopts round-corner transition to connect, and intake manifold's inside and outside wall is tangent with resonant cavity side inside and outside wall respectively, and intake manifold is identical with the wall thickness of resonant cavity;
The inside and outside wall of the arm of described intake manifold upper semisection is tangent with the inside and outside wall of resonant cavity side respectively, and the arm at intake manifold upper semisection two ends overlaps with the circular arc wall of resonant cavity cambered surface, and intake manifold upper semisection is identical with the wall thickness of resonant cavity.
2. first quarter moon wedge shape resonant intake tube according to claim 1, is characterized in that: described pressure inlet connects the variable cross section pipeline that is become gradually square tube by pipe, and end flange is installed on variable cross section pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185924.4A CN102678403B (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge shaped resonance intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185924.4A CN102678403B (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge shaped resonance intake pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678403A CN102678403A (en) | 2012-09-19 |
| CN102678403B true CN102678403B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210185924.4A Expired - Fee Related CN102678403B (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge shaped resonance intake pipe |
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| CN (1) | CN102678403B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056473A (en) * | 1989-05-29 | 1991-10-15 | Honda Giken Kogyo Kabushiki Kaisha | Intake device for multi-cylinder internal combustion engine |
| CN2516722Y (en) * | 2002-01-24 | 2002-10-16 | 萍乡市科尔发动机有限公司 | Air intake pipe of four-cylinder multipoint electric control petrol engine |
| CN2545378Y (en) * | 2002-06-18 | 2003-04-16 | 上汽集团奇瑞汽车有限公司 | Air intaking and discharging device for automotive engine |
| CN101608587A (en) * | 2009-07-22 | 2009-12-23 | 哈尔滨工程大学 | Resonant intake tube of natural gas engine |
| CN202718782U (en) * | 2012-06-07 | 2013-02-06 | 哈尔滨工程大学 | Half-moon wedge-shaped resonant intake pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10014282A1 (en) * | 2000-03-22 | 2001-09-27 | Mann & Hummel Filter | Suction device with vibrating tubes and length-adjustable resonance tubes |
-
2012
- 2012-06-07 CN CN201210185924.4A patent/CN102678403B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056473A (en) * | 1989-05-29 | 1991-10-15 | Honda Giken Kogyo Kabushiki Kaisha | Intake device for multi-cylinder internal combustion engine |
| CN2516722Y (en) * | 2002-01-24 | 2002-10-16 | 萍乡市科尔发动机有限公司 | Air intake pipe of four-cylinder multipoint electric control petrol engine |
| CN2545378Y (en) * | 2002-06-18 | 2003-04-16 | 上汽集团奇瑞汽车有限公司 | Air intaking and discharging device for automotive engine |
| CN101608587A (en) * | 2009-07-22 | 2009-12-23 | 哈尔滨工程大学 | Resonant intake tube of natural gas engine |
| CN202718782U (en) * | 2012-06-07 | 2013-02-06 | 哈尔滨工程大学 | Half-moon wedge-shaped resonant intake pipe |
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| Publication number | Publication date |
|---|---|
| CN102678403A (en) | 2012-09-19 |
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