CN202718782U - Half-moon wedge-shaped resonant intake pipe - Google Patents
Half-moon wedge-shaped resonant intake pipe Download PDFInfo
- Publication number
- CN202718782U CN202718782U CN 201220266466 CN201220266466U CN202718782U CN 202718782 U CN202718782 U CN 202718782U CN 201220266466 CN201220266466 CN 201220266466 CN 201220266466 U CN201220266466 U CN 201220266466U CN 202718782 U CN202718782 U CN 202718782U
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- resonant cavity
- intake manifold
- resonant
- intake
- wedge shape
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Abstract
The utility model aims to provide a half-moon wedge-shaped resonant intake pipe which comprises an intake main pipe, a resonant cavity, an intake manifold, a pressure pipe and a flange, wherein the intake main pipe, the resonant cavity, the intake manifold and the pressure pipe are connected in sequence; the intake manifold comprises an upper half section of the intake manifold and a lower half section of the intake manifold, wherein the upper half section of the intake manifold is connected with the lower half section of the intake manifold through the flange; the resonant cavity comprises a side surface of the resonant cavity, an arc surface of the resonant cavity and a bottom surface of the resonant cavity, wherein the side surface of the resonant cavity, the arc surface of the resonant cavity and the bottom surface of the resonant cavity are mutually connected, the side surface of the resonant cavity is in a shape of a half moon, the arc surface of the resonant cavity is in a shape of a wedge with a wide upper part and a narrow lower part, and the resonant cavity is integrally in a shape of a half-moon wedge; and the upper half section of the intake manifold is connected with the bottom surface of the resonant cavity. According to the half-moon wedge-shaped resonant intake pipe, gas flow speed is converted into air pressure, thereby solving the problem that the power density of a gas engine is decreased due to an unsatisfactory resonant effect, preferably organizing the gas flow line, expanding the range of resonant speed and reducing gas flow loss, so as to improve the power performance, economy and emission performance of the gas engine.
Description
Technical field
The utility model relates to a kind of motor, specifically the 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 make 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 to become the outstanding choosing that replaces fuel.But rock gas is gaseous fuel, mix when then entering cylinder at intake duct, occupy the air inlet charge of a part, thereby the air quantity that enters cylinder is descended, so the specific power of gas engine is lower than diesel engine or petrol engine under the same terms.Remedy the defective of specific power decline and adopt the air inlet harmonic technology in order to improve the air inlet charge, because the periodicity opening and closing of intake valve and the linear reciprocating motion of piston, can cause that gas pressure becomes periodic large minor swing in the admission line, by determining a certain resonance rotating speed to the rationalization structural design of resonant cavity and intake manifold, under this rotating speed, can guarantee to be in the crest state when constantly gas pressure fluctuation of IO Intake Valve Opens, thereby the increase gas pressure reaches the purpose that increases the air inlet charge and improve intake efficiency.But when being in variable speed working environment lower time, resonance effect will weaken, even IO Intake Valve Opens can play minus effect when rotating speed is set to trough and arrives, thereby reduces the air inlet charge, and the gas engine specific power is further descended.
Summary of the invention
The purpose of this utility model 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 purpose of this utility model is achieved in that
The utility model 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 link to each other 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, the resonant cavity side is semilune, the resonant cavity cambered surface is wedge shape wide at the top and narrow at the bottom, and resonant cavity integral body is the first quarter moon wedge shape, and the intake manifold upper semisection links to each other with the resonant cavity bottom surface.
The utility model can also comprise:
1, described intake manifold's integral body is little 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 the 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 the 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 terminal flange is installed on the variable cross section pipeline.
Advantage of the present utility model is: the utility model 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 the gas streamline, expansion resonance speed range, reduce the gas flow loss, thereby improve power character, Economy and the emission performance of gas engine.
Description of drawings
Fig. 1 is overall construction drawing of the present utility model;
Fig. 2 is overall side view of the present utility model;
Fig. 3 is suction tude epimere structural drawing of the present utility model;
Fig. 4 is the utility model upper-lower section sheet gasket structure figure;
Fig. 5 is the utility model suction tude hypomere structural drawing;
Fig. 6 is the utility model suction tude hypomere side-looking structural drawing.
Embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～6, the utility model comprises: intake manifold 1, resonant cavity 2, intake manifold upper semisection 3, intake manifold lower semisection 4 and pressure inlet 5.Resonant cavity 2 integral body are the 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 pressed axisymmetricly structure of air inlet house steward 1 center line, intake manifold 1 wall thickness is identical with the wall thickness of resonant cavity 2, intake manifold's 1 outer wall and both sides, resonant cavity 2 front and back semilune wall 7 are tangent, 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 terminal coincidences of resonant cavity 2, intake manifold lower semisection 4 is with pressure inlet 5.Resonant cavity 2 is by the cavity in side 7, cambered surface 8 and 9 besieged cities, bottom surface, and its integral body presents the 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 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 also overlap with the circular arc wall 8 of resonant cavity 2 except all tangent with the inside and outside wall of the semilune side 7 of resonant cavity 2 fully.All with a pressure inlet 5, pressure inlet 5 is near the end of intake manifold lower semisection 3 on intake manifold lower semisection 3 each manifold, and 5 connect one section variable cross section pipeline 21 that is crossfaded into square tube by pipe behind pressure inlet, and the end of intake manifold lower semisection 3 is flange 22.Confine connection with being connected by nut by rectangular flange 14 between intake manifold upper semisection 3 and the intake manifold lower semisection 4.
As shown in Figure 1, 2, 3, gas enters resonant cavity 2 by intake manifold 1 through connecting fillet 6, and fillet 6 herein is tangent with intake manifold's 1 resonant cavity 2, better organized the gas streamline, reduce the resistance of gas flow in process, in addition, can also increase the pressure that gas enters 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 satisfies the demand of gas flow; Wall that resonant cavity 2 is connected with suction tude 8 is circular arc, and is tangent with the front and back semilune wall 7 of resonant cavity 2 respectively, and terminally overlaps fully with suction tude arm 10 and 13 walls, reduced flow losses.
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 to be connected by bolt by gasket seal 20, also to smear sealer in the joint, doing like this is tightness to prevent gas leakage in order better to ensure.
Shown in Fig. 5,6, suction pressure descends under the disresonance rotating speed in order to remedy, the defective that the gas charge descends, at the intake manifold lower semisection 4 terminal pressure inlets 5 of installing, increase the 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 manufacturing of the whole employing of the utility model cast form.During casting, be divided into suction tude upper body, intake manifold lower branch line 15 ~ 18 and intake manifold lower semisection 4 flanges 19 these three parts and cast.
For the suction tude upper body, adopt the casting of three sandboxs, first, second sandbox is cast 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 husky moulding, the 3rd sandbox casting intake manifold upper semisection 3 flanges 14, and reasonable arrangement of pouring system and pore, put at last 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 during casting.During 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 husky moulding, and arrangement of pouring system and pore, puts into core sand, waits to be cast.
19 easy a lot of simple two-part moldings of intake manifold lower semisection 4 flanges it should be noted that the casting defects such as easy generation burning into sand, pore and slag inclusion when excessive plane casts.During moulding, the certain small angle of flange 19 inclinations just can be avoided.At last intake manifold lower branch line 15 ~ 18 and intake manifold lower semisection 4 flanges 19 are weldingly connected.
Claims (5)
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 link to each other 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, the resonant cavity side is semilune, the resonant cavity cambered surface is wedge shape wide at the top and narrow at the bottom, and resonant cavity integral body is the first quarter moon wedge shape, and the intake manifold upper semisection links to each other with the resonant cavity bottom surface.
2. first quarter moon wedge shape resonant intake tube according to claim 1, it is characterized in that: described intake manifold is whole for little tubaeform, intake manifold's resonant cavity cambered surface adopts round-corner transition to connect, intake manifold's inside and outside wall is tangent with resonant cavity side inside and outside wall respectively, and the intake manifold is identical with the wall thickness of resonant cavity.
3. first quarter moon wedge shape resonant intake tube according to claim 1 and 2, it is characterized in that: 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, the arm at intake manifold upper semisection two ends overlaps with the circular arc wall of resonant cavity cambered surface, and the intake manifold upper semisection is identical with the wall thickness of resonant cavity.
4. first quarter moon wedge shape resonant intake tube according to claim 1 and 2 is characterized in that: described pressure inlet connects the variable cross section pipeline that is become gradually square tube by pipe, and terminal flange is installed on the variable cross section pipeline.
5. first quarter moon wedge shape resonant intake tube according to claim 3 is characterized in that: described pressure inlet connects the variable cross section pipeline that is become gradually square tube by pipe, and terminal flange is installed on the variable cross section pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266466 CN202718782U (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge-shaped resonant intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266466 CN202718782U (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge-shaped resonant intake pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718782U true CN202718782U (en) | 2013-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220266466 Withdrawn - After Issue CN202718782U (en) | 2012-06-07 | 2012-06-07 | Half-moon wedge-shaped resonant intake pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678403A (en) * | 2012-06-07 | 2012-09-19 | 哈尔滨工程大学 | Half-moon wedge shaped resonance intake pipe |
| CN103742318A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Engine air inlet manifold |
| CN104564452A (en) * | 2014-12-26 | 2015-04-29 | 曹铃强 | Automobile engine intake pipe and integrated manufacturing process thereof |
-
2012
- 2012-06-07 CN CN 201220266466 patent/CN202718782U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678403A (en) * | 2012-06-07 | 2012-09-19 | 哈尔滨工程大学 | Half-moon wedge shaped resonance intake pipe |
| CN102678403B (en) * | 2012-06-07 | 2014-11-05 | 哈尔滨工程大学 | Half-moon wedge shaped resonance intake pipe |
| CN103742318A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Engine air inlet manifold |
| CN104564452A (en) * | 2014-12-26 | 2015-04-29 | 曹铃强 | Automobile engine intake pipe and integrated manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130206 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |