CN104727997A - Vacuum cavity system for changing intake manifold - Google Patents
Vacuum cavity system for changing intake manifold Download PDFInfo
- Publication number
- CN104727997A CN104727997A CN201310698908.XA CN201310698908A CN104727997A CN 104727997 A CN104727997 A CN 104727997A CN 201310698908 A CN201310698908 A CN 201310698908A CN 104727997 A CN104727997 A CN 104727997A
- Authority
- CN
- China
- Prior art keywords
- cavity
- vacuum chamber
- pressure stabilizing
- way valve
- intake manifold
- 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.)
- Pending
Links
Landscapes
- Characterised By The Charging Evacuation (AREA)
Abstract
The invention relates to a vacuum cavity system for changing an intake manifold. The system comprises an one-way valve (3), an upper medium housing (6) and a lower medium housing (5), wherein the upper medium housing (6) and the lower medium housing (5) are connected to form a cavity structure; the cavity structure comprises a vacuum cavity (1), a pressure stabilizing cavity (2) and a protecting cavity (4); the protecting cavity (4) is positioned between the vacuum cavity (1) and the pressure stabilizing cavity (2) and communicated with the pressure stabilizing cavity (2); the one-way valve (3) is mounted at the part in which the vacuum cavity (1) is connected with the protecting cavity (4); the one-way valve (3) is opened or closed according to the pressure of the vacuum cavity (1) and the pressure stabilizing cavity (2) so as to connect or disconnect the vacuum cavity (1) and the pressure stabilizing cavity (2). Compared with the prior art, the system has the advantages of being wide in applicable scope, safe, reliable, high in sealing performance, and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of vacuum chamber system, especially relate to a kind of vacuum chamber system for variable intake manifold.
Background technique
Intake manifold is motor important spare part, by changing the form of manifold and integrated various functional part, can improve engine performance and improving exhaust emissions.Nowadays each large airport all prefers the intake manifold (as changed airway length, can change airway cross-section, can change pressure stabilizing cavity volume etc.) used with specific function, in conjunction with the engine control strategy that self is special, torque power requirements different under reaching different rotating speeds, and reduce the discharge of saving consumption improvement.The variable inertia gas handling system of such as Fox VIS, this system is exactly the torsion demand according to motor different rotating speeds, controls the keying of air chamber inner valve, and the length in adjustment intake manifold path, promotes best engine charging efficiency.After the device of this cover system, the torsion that motor can increase more than at least 2.2% when low speed exports.And this specific function will be reached, must on manifold integrated switched system, now the switching mode that two kinds general is had, drive to switch and drive by electric actuator with vacuum actor and switch, consider from two angles of function and cost, most variable intake manifold adopts vacuum actor switched system.Adopt vacuum actor to realize switching function, then the vacuum chamber needing a constant volume carries out switching action to drive vacuum actor.General variable intake manifold self can an integrated vacuum chamber, and carries one-way valve, thus realizes variable switch action.So general changeable air-intaking manifold branch structure is generally made up of pressure stabilizing cavity and vacuum chamber.Many intake manifold have been done all separately a vacuum chamber especially and have been ensured to store the degree of vacuum required for switching, thus add cost.Some manifold have employed internal one-way valve structure, thus the cost of one that saves outside one-way valve extra component, but one-way valve also exists certain risk at manifold interior, due to motor operationally, IO Intake Valve Opens, needs a large amount of air to enter engine operation, very large suction and negative pressure can be produced, and internal one-way valve is generally a very simple very light elastomer diaphragm, then may be inhaled in motor easily, causes engine damage.
Summary of the invention
Object of the present invention is exactly providing that a kind of using scope is wide, safe and reliable, airtight performance is good to overcome defect that above-mentioned prior art exists, saving the vacuum chamber system for variable intake manifold of manufacture cost.
Object of the present invention can be achieved through the following technical solutions:
A kind of vacuum chamber system for variable intake manifold, comprise one-way valve, upper mesochite and lower mesochite, a cavity body structure is formed after described upper mesochite is connected with lower mesochite, this cavity body structure comprises vacuum chamber, pressure stabilizing cavity and protection chamber, described protection chamber between vacuum chamber and pressure stabilizing cavity, and is communicated with pressure stabilizing cavity; Described one-way valve is arranged on vacuum chamber and the joint protecting chamber;
One-way valve opens or closes according to vacuum chamber and pressure stabilizing cavity pressure size, makes vacuum chamber be communicated with pressure stabilizing cavity or disconnect.
Described upper mesochite and lower mesochite form cavity body structure by the welding of welding muscle.
Described protection chamber is connected by a through hole with pressure stabilizing cavity, and the Extreme breadth of this through hole is less than the diameter of one-way valve.
The volume in described protection chamber is all less than the volume of vacuum chamber and pressure stabilizing cavity.
Described upper mesochite and lower mesochite are all made of plastics.
Compared with prior art, the present invention has the following advantages:
1, using scope is wide: because structure is simple, material is exactly plastics PA6+GF30, and mouldability is strong, just can be reached by welding design;
2, safe and reliable: the design concept in protection chamber considers the work characteristics of motor completely, the internal one-way valve solving the minimum intake manifold caused of pressure in engine charge stage comes off problem, by interception internal one-way valve, it is not allowed to enter pressure stabilizing cavity and motor, avoid this problems affect engine operation, cause engine damage, add the safety reliability of intake manifold variable switch;
3, airtight performance is good: vacuum chamber system adopts two housings welding formation three cavitys, and each cavity is except joint, and the connection in all the other places and sealing are very reliable.The vacuum system structure that the present invention adopts can strengthen vacuum chamber and store vacuum capacity, and the system of ensure that has goodish airtight performance;
4, low cost of manufacture: the expense that present invention saves outside one-way valve, and gone out three cavitys with two panels housing structure, compare saving cost.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is that cavity of the present invention is communicated with schematic diagram.
Fig. 3 is one-way valve of the present invention and protection cavity configuration schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The welding design and the diversification that present invention utilizes plastic casing are realisation; two panels housing is made to constitute multiple cavity; form a complete vacuum system; the process of vacuum storage can be completed; take the protective measure of motor simultaneously; when making crisis situations occurs, the safety of engine components can be protected.
As shown in Figure 1-Figure 3; a kind of vacuum chamber system for variable intake manifold; comprise one-way valve 3, upper mesochite 6 and lower mesochite 5; upper mesochite 6 and the lower mesochite 5 of intake manifold are made by plastics PA6+GF30; after being welded by welding muscle, form the cavity body structure that comprises three separation chamber, this cavity body structure comprises vacuum chamber 1, pressure stabilizing cavity 2 and protection chamber 4; described protection chamber 4 between vacuum chamber 1 and pressure stabilizing cavity 2, and is communicated with pressure stabilizing cavity 2.Described one-way valve 3 is arranged on vacuum chamber 1 and the joint protecting chamber 4.
Described protection chamber 4 is connected by a through hole with pressure stabilizing cavity 2, and the Extreme breadth of this through hole is less than the diameter of one-way valve 3.Pressure stabilizing cavity volume is about 0.9L, and vacuum chamber volume is about 1.2L, and protection cavity volume is less, and effect is to protect motor, between pressure stabilizing cavity and vacuum chamber.Above-mentioned three cavity general work states are all negative pressure.
When engine operation, intake valve one is opened one and is closed, and piston moves downward, and carries out a breathing process, produce certain negative pressure to intake manifold, so be also flooded with certain negative pressure in pressure stabilizing cavity 2.When pressure ratio vacuum chamber 1 pressure in pressure stabilizing cavity 2 is low, one-way valve 3 is opened, and the air in vacuum chamber 1 has flowed into pressure stabilizing cavity 2 through protection chamber 4, and finally make the pressure in pressure stabilizing cavity 2 identical with the pressure in vacuum chamber 1, air-flow no longer flows.And the working state of motor is divided into four-stage: air inlet, compression, blast, exhaust, so the pressure in intake manifold pressure stabilizing cavity 2 also can change according to the working state of motor.Work as the charging stage, the pressure in manifold is minimum, and in the other stage, pressure gos up all to some extent.When the pressure in pressure stabilizing cavity 2 is greater than the pressure of vacuum chamber 1, due to the effect of one-way valve 3, the gas in pressure stabilizing cavity 2 cannot flow into vacuum chamber 1, thus ensure that the degree of vacuum of vacuum chamber 1.And protect chamber 4 between vacuum chamber 1 and pressure stabilizing cavity 2, be connected to vacuum chamber 1 and pressure stabilizing cavity 2 on the one hand, ensure that safety and the performance of motor on the one hand.Even if it is excessive that pressure reduction in pressure stabilizing cavity 2 and vacuum chamber 1 occurs; in vacuum chamber 1, air-flow enters pressure stabilizing cavity 2 too quickly, causes one-way valve 3 to get loose, and one-way valve 3 also can be tackled in protection chamber 4; make one-way valve 3 cannot enter pressure stabilizing cavity 2 and motor, protect motor well.
Claims (5)
1. the vacuum chamber system for variable intake manifold, comprise one-way valve (3), upper mesochite (6) and lower mesochite (5), a cavity body structure is formed after described upper mesochite (6) is connected with lower mesochite (5), it is characterized in that, this cavity body structure comprises vacuum chamber (1), pressure stabilizing cavity (2) and protection chamber (4), described protection chamber (4) is positioned between vacuum chamber (1) and pressure stabilizing cavity (2), and is communicated with pressure stabilizing cavity (2); Described one-way valve (3) is arranged on vacuum chamber (1) and the joint protecting chamber (4);
One-way valve (3) opens or closes according to vacuum chamber (1) and pressure stabilizing cavity (2) pressure size, makes vacuum chamber (1) be communicated with pressure stabilizing cavity (2) or disconnect.
2. one according to claim 1 is used for variable intake manifold vacuum chamber system, it is characterized in that, described upper mesochite (6) and lower mesochite (5) form cavity body structure by the welding of welding muscle.
3. one according to claim 1 is used for variable intake manifold vacuum chamber system; it is characterized in that; described protection chamber (4) is connected by a through hole with pressure stabilizing cavity (2), and the Extreme breadth of this through hole is less than the diameter of one-way valve (3).
4. a kind of vacuum chamber system for variable intake manifold according to claim 1, is characterized in that, the volume in described protection chamber (4) is all less than the volume of vacuum chamber (1) and pressure stabilizing cavity (2).
5. a kind of vacuum chamber system for variable intake manifold according to claim 1, is characterized in that, described upper mesochite (6) and lower mesochite (5) are all made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698908.XA CN104727997A (en) | 2013-12-18 | 2013-12-18 | Vacuum cavity system for changing intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698908.XA CN104727997A (en) | 2013-12-18 | 2013-12-18 | Vacuum cavity system for changing intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104727997A true CN104727997A (en) | 2015-06-24 |
Family
ID=53452279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310698908.XA Pending CN104727997A (en) | 2013-12-18 | 2013-12-18 | Vacuum cavity system for changing intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104727997A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1916395A2 (en) * | 2006-10-25 | 2008-04-30 | Nissan Motor Co., Ltd. | Variable air intake control system |
| CN201144731Y (en) * | 2007-12-29 | 2008-11-05 | 上海通用汽车有限公司 | Four-stage variable inlet manifold |
| JP2012087773A (en) * | 2010-03-25 | 2012-05-10 | Denso Corp | Air intake apparatus for vehicle |
| CN102486148A (en) * | 2010-12-31 | 2012-06-06 | 上汽通用五菱汽车股份有限公司 | Inlet manifold device of engine |
| CN202300656U (en) * | 2011-09-20 | 2012-07-04 | 马勒技术投资(中国）有限公司 | Variable air intake manifold with replaceable one-way valve |
| CN203640885U (en) * | 2013-12-18 | 2014-06-11 | 曼胡默尔滤清器（上海）有限公司 | Vacuum chamber system for variable intake manifold |
-
2013
- 2013-12-18 CN CN201310698908.XA patent/CN104727997A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1916395A2 (en) * | 2006-10-25 | 2008-04-30 | Nissan Motor Co., Ltd. | Variable air intake control system |
| CN201144731Y (en) * | 2007-12-29 | 2008-11-05 | 上海通用汽车有限公司 | Four-stage variable inlet manifold |
| JP2012087773A (en) * | 2010-03-25 | 2012-05-10 | Denso Corp | Air intake apparatus for vehicle |
| CN102486148A (en) * | 2010-12-31 | 2012-06-06 | 上汽通用五菱汽车股份有限公司 | Inlet manifold device of engine |
| CN202300656U (en) * | 2011-09-20 | 2012-07-04 | 马勒技术投资(中国）有限公司 | Variable air intake manifold with replaceable one-way valve |
| CN203640885U (en) * | 2013-12-18 | 2014-06-11 | 曼胡默尔滤清器（上海）有限公司 | Vacuum chamber system for variable intake manifold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102003273B (en) | Electric control mechanical valve for turbocharger | |
| CN104018961A (en) | Air inlet pipeline system of supercharged engine and air inlet by-pass valve | |
| KR101622357B1 (en) | Internal combustion engine | |
| CN203640885U (en) | Vacuum chamber system for variable intake manifold | |
| CN202707690U (en) | Hydraulic system and engineering machinery | |
| CN101476556B (en) | Gas cylinder of wide air flue natural cooling compressor | |
| CN102767423A (en) | Parallel gas path system with switching mechanism | |
| CN104727997A (en) | Vacuum cavity system for changing intake manifold | |
| CN201908717U (en) | Turbocharger with electronic control mechanical valve | |
| CN204042153U (en) | Actuator | |
| CN102877933A (en) | Pipeline system capable of controlling intake pressure and exhaust pressure synchronously and mainly | |
| CN207122426U (en) | Helical-lobe compressor exhaust structure and helical-lobe compressor | |
| CN102767425B (en) | Switching device for admission passage and exhaust passage | |
| CN203175807U (en) | Turbocharging type air compressing device | |
| CN103670837B (en) | A kind of twin turbocharged engine air inlet pipeline | |
| CN204646409U (en) | A kind of pressurized machine and anti-surge control device thereof | |
| CN107575622A (en) | A kind of booster relief valve lip type combined sealing structure | |
| CN214366369U (en) | Supercharger bypass device and engine | |
| CN202039989U (en) | Power source for vacuum actuator of length-changeable intake manifold | |
| CN103912420A (en) | Novel supercharging intake pipe of double-bushing structure | |
| CN103452646A (en) | Exhaust manifold circulation area self-regulation type engine system | |
| CN203783774U (en) | Novel double pipe structure supercharged air inlet pipe | |
| CN203783775U (en) | Novel double-channel supercharged air inlet pipe | |
| CN203130288U (en) | Fuel evaporation automatic control system | |
| CN210637237U (en) | Air supplementing and enthalpy increasing structure, compressor and air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
|
| RJ01 | Rejection of invention patent application after publication |