CN102287271A - Constant pressure exhaust brake valve for automobile engine - Google Patents
Constant pressure exhaust brake valve for automobile engine Download PDFInfo
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- CN102287271A CN102287271A CN2011101574527A CN201110157452A CN102287271A CN 102287271 A CN102287271 A CN 102287271A CN 2011101574527 A CN2011101574527 A CN 2011101574527A CN 201110157452 A CN201110157452 A CN 201110157452A CN 102287271 A CN102287271 A CN 102287271A
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- exhaust
- valve
- waste gas
- brake
- valve plate
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
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Abstract
The invention provides a constant pressure exhaust brake valve for an automobile engine. The constant pressure exhaust brake valve comprises a cylinder body and a valve body, wherein the cylinder body comprises an air inlet (1) formed on the upper part, an air inlet cavity (2), a piston (3), a return spring (4), a push rod (5), a valve plate (7) and an exhaust cavity (6); the valve body comprises a waste gas outlet (9), a waste gas exhaust cavity (10) and a waste gas inlet (8); the piston (3) is connected with the push rod (5) below; the push rod (5) is connected with the valve plate (7) below; the exhaust cavity (6) is communicated with the outside atmosphere; the waste gas inlet (8) is connected with an engine supercharger; and during work, the valve plate (7) can close the waste gas outlet (9). The exhaust brake valve can timely release excessive pressure and keep brake working pressure stable and has sensitive brake response; and during work, the exhaust brake valve is not positioned in a high temperature state for a long time, and the service life of the exhaust brake valve is long.
Description
Technical field
The present invention relates to a kind of auxiliary brake of vehicle, particularly a kind of motor car engine constant voltage exhaust braking valve.
Background technique
The motor car engine braking system is one of important device of present vehicle safety travel.When vehicle need slow down particularly in the mountain area or city bus when needing frequent braking, if frequently use service brake, will cause wheel drag overheated and make braking function decline, as untimely taking emergency measures (cooling of stopping), even can cause braking total failure and the vehicle condition of causing danger.So adopt nothing decline property auxiliary braking system to be very important at this situation.Use complemental brake system can strengthen the vehicle braked performance, do not need to use or use break (traditional friction brake) just vehicle can be controlled in certain safety speed scope less, the prevention car brakeing is malfunctioning, guarantee traffic safety, particularly strengthen the Security of heavy-duty vehicle lower long slope.Use retarder can reduce the frequency of utilization of main Service Brake (friction brake) significantly simultaneously, thereby reduce the wearing and tearing of foundation brakes braking hub and friction plate, improve its working life, prolong the service cycle of foundation brakes simultaneously, reduce maintenance cost, improve the Security and the travelling comfort of driving, reduce driver's fatigue, increase work efficiency.
In the auxiliary brake device for automobile that uses at present, exhaust brake is simple in structure because of it, reliable performance, and operation is easy for installation easily, and it also got widely as a kind of complemental brake system and used.Exhaust braking valve of the prior art does not have the function that guarantees to set up in the engine exhaust system constant backpressure, and back pressure is low excessively not to have effect, and too high then fragile motor also is prone to drawbacks such as braking effect lags behind, malfunctioning, sideslip.
CN201679529U discloses a kind of constant pressure type exhaust braking valve, can obtain stable back pressure and stable braking force.But in braking process, its constant voltage function spring is damaged by high temperature easily and is stuck, and the also as easy as rolling off a log fracture of its dunnage, causes the life-span of brake valve to reduce.
Summary of the invention
Shortcoming at existing exhaust braking valve existence.The object of the present invention is to provide a kind ofly can in time discharge excess pressure, keep the braking working pressure stable, the exhaust braking valve of braking reflection sensitivity and long service life.
The invention provides a kind of motor car engine constant voltage exhaust braking valve, comprise cylinder body and valve body, described cylinder body comprises the suction port 1 that top is provided with, air-inlet cavity 2, piston 3, return spring 4, push rod 5, valve plate 7 and exhaust cavity 6, described valve body comprise the waste gas outlet 9 that top is provided with, waste gas discharge side 10 and exhaust gas inlet 8; Described piston 3 connects the push rod 5 of bottom, and push rod 5 connects the valve plate 7 of bottom, and described exhaust cavity 6 communicates with outside atmosphere, and described exhaust gas inlet 8 is connected with engine supercharger, and valve plate 7 can be closed waste gas outlet 9 during work.
The present invention also provides the using method of a kind of motor car engine with the constant voltage exhaust braking valve, and when driving, cylinder body does not have air inlet, and valve plate 7 is opened, and engine exhaust normally discharges, and exhaust brake is work not; When needing exhaust brake, make the cylinder body air inlet, piston 3 promotes push rod 5, and valve plate 7 is closed waste gas outlet 9, and engine exhaust is obstructed, and exhaust brake is started working; Valve plate 7 is open after exhaust gas pressure that motor is discharged has surpassed the specified pressure of cylinder body return spring 4, discharges to exceed specified pressure waste gas, makes exhaust brake keep constant voltage; Behind the brake off, brake valve restPoses.
Use exhaust braking valve of the present invention, can when obtaining stable back pressure and braking force, avoid each parts to be in the condition of high temperature for a long time, prolonged the working life of brake valve greatly.
Description of drawings
Fig. 1: the motor car engine of the present invention sectional view of constant voltage exhaust braking valve;
Fig. 2: the sectional view of constant voltage exhaust braking valve of the present invention when not starting braking;
Fig. 3: the sectional view of constant voltage exhaust braking valve of the present invention when braking work;
Fig. 4: the sectional view of constant voltage exhaust braking valve of the present invention when keeping pressure constant state.
Wherein: 1, suction port, 2, air-inlet cavity, 3, piston, 4, return spring, 5, push rod, 6, exhaust cavity, 7, valve plate, 8, exhaust gas inlet, 9, waste gas outlet, 10, the waste gas discharge side.
Embodiment
According to Figure of description, motor car engine of the present invention constant voltage exhaust braking valve, comprise cylinder body and valve body, described cylinder body comprises the suction port 1 that top is provided with, air-inlet cavity 2, piston 3, return spring 4, push rod 5, valve plate 7 and exhaust cavity 6, described valve body comprises the waste gas outlet 9 that top is provided with, waste gas discharge side 10 and exhaust gas inlet 8; Described piston 3 connects the push rod 5 of bottom, and push rod 5 connects the valve plate 7 of bottom, and described exhaust cavity 6 communicates with outside atmosphere, and described exhaust gas inlet 8 is connected with engine supercharger, and valve plate 7 can be closed waste gas outlet 9 during work.
As described in Figure 2, when driving, cylinder body does not have air inlet, and valve plate 7 is opened, and engine exhaust normally discharges, and exhaust brake is work not; As described in Figure 3, when needing exhaust brake, make the cylinder body air inlet, piston 3 promotes push rod 5, and valve plate 7 is closed waste gas outlet 9, and engine exhaust is obstructed, and exhaust brake is started working; As described in Figure 4, valve plate 7 is open after exhaust gas pressure that motor is discharged has surpassed the specified pressure of cylinder body return spring 4, discharges to exceed specified pressure waste gas, makes exhaust brake keep constant voltage; Behind the brake off, brake valve restPoses.In the working procedure, each parts is not to be in the condition of high temperature for a long time, can prolong the working life of brake valve greatly.
Use exhaust braking valve of the present invention, can in time discharge excess pressure, keep the braking working pressure stable, have the advantage of braking reflection sensitivity and long service life, can be widely used in the engine braking system of Motor Vehicle.
Claims (2)
1. motor car engine constant voltage exhaust braking valve, comprise cylinder body and valve body, be characterised in that: described cylinder body comprises the suction port (1) that top is provided with, air-inlet cavity (2), piston (3), return spring (4), push rod (5), valve plate (7) and exhaust cavity (6), described valve body comprise the waste gas outlet (9) that top is provided with, waste gas discharge side (10) and exhaust gas inlet (8); Described piston (3) connects the push rod (5) of bottom, push rod (5) connects the valve plate (7) of bottom, described exhaust cavity (6) communicates with outside atmosphere, and described exhaust gas inlet (8) is connected with engine supercharger, and valve plate during work (7) can be closed waste gas outlet (9).
2. the described motor car engine of a claim 1 is with the using method of constant voltage exhaust braking valve, and be characterised in that: when driving, cylinder body does not have air inlet, and valve plate (7) is opened, and engine exhaust normally discharges, and exhaust brake is work not; When needing exhaust brake, make the cylinder body air inlet, piston (3) promotes push rod (5), and valve plate (7) is closed waste gas outlet (9), and engine exhaust is obstructed, and exhaust brake is started working; Valve plate (7) is open after exhaust gas pressure that motor is discharged has surpassed the specified pressure of cylinder body return spring (4), discharges to exceed specified pressure waste gas, makes exhaust brake keep constant voltage; Behind the brake off, brake valve restPoses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101574527A CN102287271A (en) | 2011-06-13 | 2011-06-13 | Constant pressure exhaust brake valve for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101574527A CN102287271A (en) | 2011-06-13 | 2011-06-13 | Constant pressure exhaust brake valve for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287271A true CN102287271A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101574527A Pending CN102287271A (en) | 2011-06-13 | 2011-06-13 | Constant pressure exhaust brake valve for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287271A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438058A (en) * | 2016-12-07 | 2017-02-22 | 东风商用车有限公司 | Engine exhaust pipe with exhaust brake butterfly valve |
| CN108131968A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN108131969A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN108131967A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN112975866A (en) * | 2021-02-23 | 2021-06-18 | 邹芳 | Multifunctional portal frame type automobile detection equipment |
| CN117345888A (en) * | 2023-12-04 | 2024-01-05 | 福建云联中汇环保科技有限公司 | Sewage air valve capable of preventing leakage of sewage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093046A (en) * | 1976-12-30 | 1978-06-06 | Cummins Engine Company, Inc. | Exhaust braking apparatus |
| CN2241230Y (en) * | 1994-04-18 | 1996-11-27 | 任健 | Exhaust control valve for internal combustion engine |
| CN201661328U (en) * | 2009-09-07 | 2010-12-01 | 上海尤顺汽车部件有限公司 | Driving device for engine brake |
| CN201679529U (en) * | 2010-04-27 | 2010-12-22 | 青岛智远汽车部件有限公司 | Constant-pressure exhaust brake valve |
| CN202081980U (en) * | 2011-06-13 | 2011-12-21 | 瑞立集团瑞安汽车零部件有限公司 | Constant pressure exhaust brake valve used for automobile engine |
-
2011
- 2011-06-13 CN CN2011101574527A patent/CN102287271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093046A (en) * | 1976-12-30 | 1978-06-06 | Cummins Engine Company, Inc. | Exhaust braking apparatus |
| CN2241230Y (en) * | 1994-04-18 | 1996-11-27 | 任健 | Exhaust control valve for internal combustion engine |
| CN201661328U (en) * | 2009-09-07 | 2010-12-01 | 上海尤顺汽车部件有限公司 | Driving device for engine brake |
| CN201679529U (en) * | 2010-04-27 | 2010-12-22 | 青岛智远汽车部件有限公司 | Constant-pressure exhaust brake valve |
| CN202081980U (en) * | 2011-06-13 | 2011-12-21 | 瑞立集团瑞安汽车零部件有限公司 | Constant pressure exhaust brake valve used for automobile engine |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438058A (en) * | 2016-12-07 | 2017-02-22 | 东风商用车有限公司 | Engine exhaust pipe with exhaust brake butterfly valve |
| CN108131968A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN108131969A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN108131967A (en) * | 2018-02-02 | 2018-06-08 | 高志男 | Tail gas heat-exchanger rig and apply its vehicle |
| CN108131969B (en) * | 2018-02-02 | 2024-05-14 | 高志男 | Tail gas heat exchange device and vehicle using same |
| CN108131967B (en) * | 2018-02-02 | 2024-05-14 | 高志男 | Tail gas heat exchange device and vehicle using same |
| CN108131968B (en) * | 2018-02-02 | 2024-05-14 | 高志男 | Tail gas heat exchange device and vehicle using same |
| CN112975866A (en) * | 2021-02-23 | 2021-06-18 | 邹芳 | Multifunctional portal frame type automobile detection equipment |
| CN117345888A (en) * | 2023-12-04 | 2024-01-05 | 福建云联中汇环保科技有限公司 | Sewage air valve capable of preventing leakage of sewage |
| CN117345888B (en) * | 2023-12-04 | 2024-04-12 | 福建云联中汇环保科技有限公司 | Sewage air valve capable of preventing leakage of sewage |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111221 |