CN203097984U - Device for generating independently optimizable auxiliary valve movement of engine - Google Patents
Device for generating independently optimizable auxiliary valve movement of engine Download PDFInfo
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- CN203097984U CN203097984U CN201220632212.8U CN201220632212U CN203097984U CN 203097984 U CN203097984 U CN 203097984U CN 201220632212 U CN201220632212 U CN 201220632212U CN 203097984 U CN203097984 U CN 203097984U
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- auxiliary valve
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- valve
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Abstract
The utility model discloses a device for generating an independently optimizable auxiliary valve movement of an engine. The device comprises a conventional valve actuator, an auxiliary valve actuator and an auxiliary movement control mechanism. The conventional valve actuator comprises a conventional valve driving mechanism. The auxiliary valve actuator comprises an auxiliary valve driving mechanism. The conventional valve driving mechanism and the auxiliary valve driving mechanism are simultaneously controlled by the auxiliary movement control mechanism. When the auxiliary movement control mechanism is turned on, the conventional valve driving mechanism is changed to a non-operating position from an operating position, chaining between the conventional valve actuator and two valves of the engine are interrupted, and a conventional valve movement of the engine is cancelled. In the meanwhile, the auxiliary valve driving mechanism is changed to the operating position from the non-operating position, and one of the two valves is driven by the auxiliary valve actuator to generate the auxiliary valve movement of the engine. According to the device for generating the independently optimizable auxiliary valve movement of the engine disclosed by the utility model, the auxiliary valve movement and the conventional valve movement of the engine are not mutually interfered. The device can be used for engine braking to reduce braking load and improve braking performance.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to the valve actuation field of vehicle motor, particularly is used to produce the device of motor auxiliary valve motion, but concrete be a kind of motor auxiliary valve motion device of independent optimization.
Background technique:
In the prior art, the technology of the throttle actuator of vehicle motor is behaved and is known altogether, and it uses the history in existing more than 100 year.But because engine emission and braking are waited other demand, increasing motor need increase auxiliary valve motion on the basis of conventional valve motion.In fact, adopt the engine brake of motor auxiliary valve motion to become the device that commercial car (especially heavy truck more than 12 tons) motor must be joined gradually.
The engine braking technology also is widely known by the people.Only need motor temporarily is converted to compressor.Cut off fuel oil in the transfer process, when the approaching end of engine piston compression stroke, open valve, allowing to be compressed gas (being air during braking) is released, the motor energy that pressurized gas absorbed in compression stroke, can not turn back to the steam-cylinder piston and the bent axle of motor at expansion stroke subsequently, but dissipate by the exhaust and the radiation system of motor.Final result is slowing down of effective engine braking and car speed.
In the on-board engine applicating history in more than 100 years, what the throttle actuator adopted all is the connection and the driving of mechanical type or solid chain type (non-hydraulic type), and the camming movement of motor is passed to valve, produces conventional valve motion.And applied in the world engine valve actuator mostly is connection or the driving of adopting hydraulic type at present, produces the braking valve motion.
In the prior art, be attended by the conventional valve motion of motor in the auxiliary valve motion process of motor, therefore, the auxiliary valve motion of motor is not independent, and performance is restricted.
Summary of the invention:
But the purpose of this utility model is to provide a kind of motor auxiliary valve motion device of independent optimization, but the motor auxiliary valve motion device of described this independent optimization will solve the conventional valve motion that is attended by motor in the auxiliary valve motion process of motor in the prior art, the technical problem that auxiliary valve motion is independent, performance has limitation of motor.
But the motor auxiliary valve motion device of independent optimization of the present utility model, comprise a throttle actuator, an auxiliary valve actuation device and an auxiliary motion control mechanism, described throttle actuator comprises a throttle driving mechanism, described auxiliary valve actuation device comprises an auxiliary valve driving mechanism, wherein, described throttle driving mechanism comprises that one is integrated in the rocking arm of motor or the locking device in the air valve bridge, described locking device has locked position and unlocked position, in locked position, locking device links to each other described throttle actuator with two valves of motor, in the unlocked position, locking device disconnects two valves of described throttle actuator and motor, described auxiliary valve driving mechanism comprises a blank compensation apparatus, described blank compensation apparatus has off position and operating position, at off position, blank compensation apparatus produces a gap between a valve of described auxiliary valve actuation device and motor, at operating position, blank compensation apparatus is eliminated the gap between the valve of described auxiliary valve actuation device and motor, and described auxiliary motion control mechanism communicates with the locking device of throttle driving mechanism and the blank compensation apparatus of auxiliary valve driving mechanism by oil circuit simultaneously.
Further, described throttle driving mechanism comprises a conventional rocking arm and an air valve bridge, include a first piston hole in the described air valve bridge, be provided with a first piston in the described first piston hole, one end of described conventional rocking arm is fixedlyed connected with described first piston, be provided with a first piston locking device between piston and the air valve bridge, described first piston locking device is arranged in the built-in oil duct of air valve bridge, the built-in oil duct of air valve bridge communicates with the built-in oil circuit of conventional rocking arm, described auxiliary motion control mechanism comprises a machine oil flow control apparatus, described machine oil flow control apparatus communicates with the built-in oil circuit of conventional rocking arm, described auxiliary valve actuation device comprises an auxiliary rocker arm, be provided with the gap between one end of auxiliary rocker arm and the air valve bridge, be provided with a gap eliminator in the air valve bridge, the built-in oil duct of air valve bridge extends to described gap eliminator.
Described auxiliary motion control mechanism is controlled throttle driving mechanism and auxiliary valve driving mechanism simultaneously, when described auxiliary motion control mechanism is opened, the throttle driving mechanism becomes off position from operating position, link disconnection, the conventional valve motion of cancellation motor between two valves of throttle actuator and motor; Meanwhile, the auxiliary valve driving mechanism becomes operating position from off position, and the auxiliary valve actuation device drives in described two valves, produces the auxiliary valve motion of motor.
Further, but the throttle driving mechanism of the motor auxiliary valve motion device of described independent optimization is hydraulic type driving mechanism or solid chain type driving mechanism.
Further, but the auxiliary valve driving mechanism of the motor auxiliary valve motion device of described independent optimization is hydraulic type driving mechanism or solid chain type driving mechanism.
Further, but the auxiliary valve driving mechanism and the throttle driving mechanism of the motor auxiliary valve motion device of described independent optimization are integrated in the air valve bridge of motor.
Further, but the auxiliary valve driving mechanism of the motor auxiliary valve motion device of described independent optimization be integrated in the rocking arm.
Further, but the throttle actuator of the motor auxiliary valve motion device of described independent optimization also comprises the conventional cam and the conventional rocking arm of motor, when the locking device of described throttle driving mechanism is in locked position, described conventional cam move through two valves that conventional rocking arm is passed motor, produce the conventional valve motion of motor.
Further, but the auxiliary valve actuation device of the motor auxiliary valve motion device of described independent optimization also comprises auxiliary cam and auxiliary rocker arm, when described auxiliary valve driving mechanism is in operating position, the auxiliary rocker arm that moves through of described auxiliary cam passes in described two valves one, produces the auxiliary valve motion of motor.
Further, but the auxiliary cam of the motor auxiliary valve motion device of described independent optimization comprises the brake cam that is used for engine braking, described auxiliary rocker arm comprises the brake rocker arm that is used for engine braking, and described auxiliary valve motion comprises the valve motion that is used for engine braking.
Further, but the brake cam of the motor auxiliary valve motion device of described independent optimization contains compression discharges braking boss, exhaust gas recirculation boss, exhaust and discharge braking boss and the anti-boss that fills of exhaust.
Further, but the compression of the motor auxiliary valve motion device of described independent optimization discharges the braking boss and is positioned near the compression top center of motor, described exhaust gas recirculation boss is positioned near the air inlet lower dead center of motor, described exhaust discharges the braking boss and is positioned near the exhaust top dead center of motor, and the anti-boss that fills of described exhaust discharges between the braking boss at compression release braking boss and exhaust.
Working principle of the present utility model is: when needs motor during from the throttle movement conversion to auxiliary valve motion, the auxiliary motion control mechanism of motor is open-minded, the throttle driving mechanism becomes off position from operating position, link disconnection between two valves of throttle actuator and motor, lose the conventional valve motion of motor; Meanwhile, the auxiliary valve driving mechanism becomes operating position from off position, and the auxiliary valve actuation device produces the auxiliary valve motion of motor by a valve in two valves of auxiliary valve drive mechanism.When not needing auxiliary valve motion, the auxiliary motion control mechanism of motor disconnects, the throttle driving mechanism becomes operating position from off position, and the throttle actuator produces the conventional valve motion of motor by two valves of throttle drive mechanism motor; Meanwhile, the auxiliary valve driving mechanism becomes off position from operating position, links disconnection between auxiliary valve actuation device and the valve, loses the auxiliary valve motion of motor.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model has been eliminated the conventional valve motion of motor when producing the auxiliary valve motion of motor, but obtained independent optimization, the better auxiliary valve motion of performance.
Description of drawings:
Fig. 1 is the schematic representation that the auxiliary motion control mechanism of motor auxiliary valve motion device of the present utility model is in connection (fuel feeding) state.
Fig. 2 is the schematic representation that the auxiliary motion control mechanism of motor auxiliary valve motion device of the present utility model is in disconnection (oil extraction) state.
Fig. 3 is the schematic representation of an embodiment when the auxiliary motion control mechanism is in disconnection (oil extraction) state of motor auxiliary valve motion device of the present utility model.
Fig. 4 is the schematic representation of an embodiment when the auxiliary motion control mechanism is in connection (fuel feeding) state of motor auxiliary valve motion device of the present utility model.
Fig. 5 is second embodiment's of a motor auxiliary valve motion device of the present utility model structural arrangement schematic representation.
Embodiment:
Embodiment 1:
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are used to describe embodiment one.
As depicted in figs. 1 and 2, the auxiliary motion control mechanism 50 of motor auxiliary valve motion device of the present utility model is in the position of connection (fuel feeding) and disconnection (oil extraction).Solenoid valve 51 among the figure is the two-position three way type.When the positive and negative electrode 55 and 57 of braking control mechanism 50 is connected (Fig. 1), the valve body 58 of solenoid valve 51 is opened oil-feed port 111 downwards, close oil drain out 222 simultaneously, the low-pressure oil of motor (lubricant oil) flows to auxiliary valve driving mechanism 100b and throttle driving mechanism 100(Fig. 4 from the fluid passage).When the positive and negative electrode 55 and 57 of braking control mechanism 50 disconnects (Fig. 2), the valve body 58 of solenoid valve 51 is upwards closed oil-feed port 111, open unloading port 222 simultaneously, the low-pressure oil of motor (lubricant oil) stops to flow to auxiliary valve driving mechanism 100b and throttle driving mechanism 100(Fig. 3), on the contrary from fluid passage and oil drain out 222 oil extractions.
As shown in Figure 3, when auxiliary motion control mechanism 50 is in disconnection (oil extraction) position (Fig. 2), the throttle driving mechanism 100 of throttle actuator 200 is in operating position.Throttle actuator 200 among Fig. 3 comprises conventional cam 230, tappet roller 235, conventional rocking arm 210, conventional valve clearance regulating system, throttle driving mechanism 100 and air valve bridge 400.Conventional valve clearance regulating system comprises adjusting screw 110, tighten up nut 105 and resemble foot pad 114, two valves 301 of motor and 302 be positioned at air valve bridge 400 both sides below, valve spring 311 and 312 by motor is biased on the valve seat 320 of engine cylinder-body 500, stops gas to flow between engine cylinder and outlet pipe 600.Conventional rocking arm 210 is installed on the conventional pitman arm shaft 205 rock typely, and an end of conventional rocking arm 210 links to each other with cam 230 by roller 235, and the other end of conventional rocking arm 210 and air valve bridge 400 interior throttle driving mechanisms 100 link to each other.Conventional cam 230 has a conventional boss 220 on interior basic circle 225.
In this simultaneously, the auxiliary valve driving mechanism 100b of the auxiliary valve actuation device 200b among Fig. 3 is in off position.Auxiliary valve actuation device 200b comprises auxiliary cam 230b, roller 235b, auxiliary rocker arm 210b, auxiliary valve clearance regulating system and auxiliary valve driving mechanism 100b.Auxiliary valve clearance regulating system comprises adjusting screw 110b, tightens up nut 105b and resembles foot pad 114b.Auxiliary rocker arm 210b is installed on the auxiliary rocker arm axle 205b rock typely, and secondary spring 198b is biased in the end of auxiliary rocker arm 210b on the auxiliary cam 230b by roller 235b.Auxiliary valve driving mechanism 100b in the other end of auxiliary rocker arm 210b and the air valve bridge 400 is adjacent.Auxiliary cam 230b has one or more (among Fig. 3 being two) to assist boss 232 and 233 on interior basic circle 225b.
Auxiliary valve driving mechanism 100b is a blank compensation apparatus, comprises piston (or plunger) 160, piston spring 177 and the one-way valve 170 of the blind hole 190 that a side opening of the air valve bridge 400 that is positioned at valve 301 tops makes progress.Piston spring 177 pushes piston 160 in the blind hole 190 of air valve bridge 400, the gap 132(blank compensation apparatus that has formed between piston 160 and the auxiliary rocker arm 210b (resembling foot pad 114b) is in off position), disconnected linking between auxiliary valve actuation device 200b and the valve 301, the motion of auxiliary cam 230b can not pass to valve 301(cancellation or lose the auxiliary valve motion 10 of motor).Oilhole 197 on the piston 160 is used for draining.
As shown in Figure 4, when auxiliary motion control mechanism 50 was in " fuel feeding " position (Fig. 1), the throttle driving mechanism 100 of throttle actuator 200 was in off position.The machine oil of motor is by the oil duct 211 and 212 in the conventional pitman arm shaft 205, oil duct 213 and 214 in the conventional rocking arm 210, the oil duct 115 of valve clearance adjusting screw 110 enters oil duct 215 and the annular groove 275 in the piston 260, oil pressure overcomes the active force of lock ball spring 271, lock ball 270 is pushed in the horizontal hole 272 of air valve bridge 400, locking device is in the unlocked position, allow the relative movement between piston 260 and the air valve bridge 400, disconnected linking between two valves 301 and 302 of throttle actuator 200 and motor, the motion of conventional cam 230 can not transmitted two valves 301 and 302(cancellations or lost the throttle motion 20 of motor).The piston spring 277 that is placed in above the spring seat 278 makes progress piston 260 biasings, contacts with conventional rocking arm 210 all the time, plays the anti-effect that flies off.
In this simultaneously, the auxiliary valve driving mechanism 100b of the auxiliary valve actuation device 200b among Fig. 4 is in operating position.The machine oil of motor enters the active force that blind hole 190. oil pressure overcome piston spring 177 from the annular groove 275 in the piston 260 by one-way valve, and piston 160 is upwards released.Gap 132 above the piston 160 is eliminated (blank compensation apparatus is in operating position), link to each other with auxiliary rocker arm 210b (resembling foot pad 114b), oilhole 197 blocked sealings, forming hydraulic pressure between the following and air valve bridge 400 of piston 160 links, move through auxiliary rocker arm 210b, auxiliary valve driving mechanism 100b and the air valve bridge 400 of auxiliary cam 230b pass to a valve 301 in two valves, produce the auxiliary valve motion 10 of motor.
Embodiment 2:
As shown in Figure 5, the another kind of arrangement mode of conventional rocking arm 210 and auxiliary rocker arm 210b in the motor auxiliary valve motion device of the present utility model.The auxiliary rocker arm 210b of the conventional rocking arm 210 of throttle actuator 200 and auxiliary valve actuation device 200b is installed in same pitman arm shaft abreast, above conventional pitman arm shaft 205.The working principle of present embodiment is identical with embodiment one with operating method, is not described in detail in this.
In a word, motor auxiliary valve motion device of the present utility model is controlled the throttle driving mechanism 100 of throttle actuator 200 and the auxiliary valve driving mechanism 100b of auxiliary valve actuation device 200b simultaneously by an auxiliary motion control mechanism 50.When auxiliary motion control mechanism 50 is in disconnection (oil extraction) position (Fig. 2), the throttle driving mechanism 100 of throttle actuator 200 is in operating position, and the auxiliary valve driving mechanism 100b of auxiliary valve actuation device 200b is in off position (Fig. 3), two valves 301 and 302 conventional valve motion of generation of motor do not have auxiliary valve motion.When auxiliary motion control mechanism 50 is in connection (fuel feeding) position (Fig. 1), the throttle driving mechanism 100 of throttle actuator 200 is in off position, and the auxiliary valve driving mechanism 100b of auxiliary valve actuation device 200b is in operating position (Fig. 4), two valves 301 of motor and 302 lose conventional valve motion, and one of them valve 301 produces auxiliary valve motion.
Also have, the auxiliary valve driving mechanism 100b of the throttle driving mechanism 100 of throttle actuator 200 of the present utility model and auxiliary valve actuation device 200b is integrated in the air valve bridge 400 of motor, simple in structure, reduced cost, increase reliability, avoided the increase of motor height and weight.
One of application of the present utility model is an engine braking.Throttle actuator 200 is an exhaust valve actuator, and conventional cam 230 is an exhaust cam, and conventional rocking arm 210 is an exhaust rocker arm, and two valves 301 and 302 are exhaust valve; Auxiliary valve actuation device 200b is an engine brake, and auxiliary cam 230b is a brake cam, and auxiliary rocker arm 210b is a brake rocker arm.Wherein brake cam 230b can contain compression release braking boss, exhaust gas recirculation boss, exhaust release braking boss and the anti-boss that fills of exhaust.Compression discharges the braking boss and is positioned near the compression top center of motor, the exhaust gas recirculation boss is positioned near the air inlet lower dead center of motor, exhaust discharges the braking boss and is positioned near the exhaust top dead center of motor, and the anti-boss that fills of exhaust discharges between the braking boss at compression release braking boss and exhaust.When motor need be braked, auxiliary motion control mechanism 50 is arranged on connection (fuel feeding) position (Fig. 1), throttle driving mechanism 100 becomes off position (Fig. 4) from operating position, link disconnection, the conventional valve motion of cancellation motor between exhaust valve actuator 200 and two exhaust valves 301 and 302.In this simultaneously, auxiliary valve driving mechanism 100 becomes operating position from off position, and four motions that boss produced above the brake cam 230b all pass to 301 in two exhaust valves, produce the engine braking motion.This independently braking valve motion that does not have conventional valve motion helps improving engine braking performance, reduces engine braking load.
Above-mentioned explanation has comprised a lot of concrete mode of executions, and this should not be regarded as the restriction to the utility model scope, but as representative concrete illustrations more of the present utility model, many other differentiation all might therefrom produce.For instance, but the motor auxiliary valve motion device of the independent optimization that shows here not only can be used to produce the braking valve motion of engine braking, also can be used to produce other valve motion such as exhaust gas recirculation.
In addition, but the motor auxiliary valve motion device of the independent optimization that shows here not only can be used for overhead cam engine, also can be used for push rod/ejector sleeve formula motor; Not only can be used for driving exhaust valve, also can be used to drive intake valve.
Also have, throttle actuator of Xian Shiing or auxiliary valve actuation device not only can be rocker arm bodies here, also can be housing structures etc.; Not only can be hydraulic type, also can be mechanical type (or solid chain type).
In addition, the throttle driving mechanism of Xian Shiing not only can be solid chain type driving mechanism here, also can be the hydraulic type driving mechanism; Equally, the auxiliary valve driving mechanism not only can be the hydraulic type driving mechanism, also can be solid chain type driving mechanism.Throttle driving mechanism or auxiliary valve driving mechanism not only can be integrated in the air valve bridge, also can be integrated in the rocking arm, perhaps place in the casing etc.
Also have, the kind of the blank compensation apparatus of the locking device of throttle driving mechanism or auxiliary valve driving mechanism and mounting type can be varied, its component also can adopt different forms, such as the shape of piston (plunger), the shape of spring, the shape of annular groove etc., lock ball also can be the lock of cylindricality.
Therefore, scope of the present utility model should not decided by above-mentioned concrete illustration, but is decided by affiliated claim and the suitable right of law thereof.
Claims (10)
1. but the motor auxiliary valve motion device of an independent optimization, comprise a throttle actuator, an auxiliary valve actuation device and an auxiliary motion control mechanism, described throttle actuator comprises a throttle driving mechanism, described auxiliary valve actuation device comprises an auxiliary valve driving mechanism, it is characterized in that: described throttle driving mechanism comprises that one is integrated in the rocking arm of motor or the locking device in the air valve bridge, described locking device has locked position and unlocked position, in locked position, locking device links to each other described throttle actuator with two valves of motor, in the unlocked position, locking device disconnects two valves of described throttle actuator and motor, described auxiliary valve driving mechanism comprises a blank compensation apparatus, described blank compensation apparatus has off position and operating position, at off position, blank compensation apparatus produces a gap between a valve of described auxiliary valve actuation device and motor, at operating position, blank compensation apparatus is eliminated the gap between the valve of described auxiliary valve actuation device and motor, and described auxiliary motion control mechanism communicates with the locking device of throttle driving mechanism and the blank compensation apparatus of auxiliary valve driving mechanism by oil circuit simultaneously.
2. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1 is characterized in that: described throttle driving mechanism is solid chain type driving mechanism or hydraulic type driving mechanism.
3. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1 is characterized in that: described auxiliary valve driving mechanism is hydraulic type driving mechanism or solid chain type driving mechanism.
4. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1, it is characterized in that: described auxiliary valve driving mechanism and throttle driving mechanism are integrated in the air valve bridge of motor.
5. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1, it is characterized in that: described auxiliary valve driving mechanism is integrated in the rocking arm.
6. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1, it is characterized in that: described throttle actuator also comprises the conventional cam and the conventional rocking arm of motor, when the locking device of described throttle driving mechanism is in locked position, described conventional cam move through two valves that conventional rocking arm is passed motor, produce the conventional valve motion of motor.
7. but the motor auxiliary valve motion device of independent optimization as claimed in claim 1, it is characterized in that: described auxiliary valve actuation device also comprises auxiliary cam and auxiliary rocker arm.
But 8. the motor auxiliary valve motion device of independent optimization as claimed in claim 7, it is characterized in that: described auxiliary cam comprises the brake cam that is used for engine braking, described auxiliary rocker arm comprises the brake rocker arm that is used for engine braking.
9. but the motor auxiliary valve motion device of independent optimization as claimed in claim 8 is characterized in that: described brake cam contains compression and discharges braking boss, exhaust gas recirculation boss, exhaust and discharge braking boss and the anti-boss that fills of exhaust.
10. but the motor auxiliary valve motion device of independent optimization as claimed in claim 9, it is characterized in that: described compression discharges the braking boss and is positioned near the compression top center of motor, described exhaust gas recirculation boss is positioned near the air inlet lower dead center of motor, described exhaust discharges the braking boss and is positioned near the exhaust top dead center of motor, and the anti-boss that fills of described exhaust discharges between the braking boss at compression release braking boss and exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220632212.8U CN203097984U (en) | 2012-11-26 | 2012-11-26 | Device for generating independently optimizable auxiliary valve movement of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220632212.8U CN203097984U (en) | 2012-11-26 | 2012-11-26 | Device for generating independently optimizable auxiliary valve movement of engine |
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| Publication Number | Publication Date |
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| CN203097984U true CN203097984U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220632212.8U Expired - Fee Related CN203097984U (en) | 2012-11-26 | 2012-11-26 | Device for generating independently optimizable auxiliary valve movement of engine |
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| CN (1) | CN203097984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640257A (en) * | 2015-10-29 | 2017-05-10 | 上海尤顺汽车部件有限公司 | Load-controllable engine braking device and engine braking method |
| CN107420147A (en) * | 2017-09-07 | 2017-12-01 | 吉林大学 | A kind of variable stroke engine valve actuator |
| CN110173314A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | A kind of air valve bridge and its exhaust brake method of achievable compression-release type engine braking |
-
2012
- 2012-11-26 CN CN201220632212.8U patent/CN203097984U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640257A (en) * | 2015-10-29 | 2017-05-10 | 上海尤顺汽车部件有限公司 | Load-controllable engine braking device and engine braking method |
| CN106640257B (en) * | 2015-10-29 | 2019-09-27 | 上海尤顺汽车部件有限公司 | Load controllable engine braking apparatus and engine braking methods |
| CN107420147A (en) * | 2017-09-07 | 2017-12-01 | 吉林大学 | A kind of variable stroke engine valve actuator |
| CN107420147B (en) * | 2017-09-07 | 2023-04-18 | 吉林大学 | Variable stroke engine valve driving device |
| CN110173314A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | A kind of air valve bridge and its exhaust brake method of achievable compression-release type engine braking |
| CN110173314B (en) * | 2019-05-15 | 2023-07-18 | 浙江大学 | Valve bridge capable of realizing compression release type engine braking and exhaust braking method thereof |
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| C14 | Grant of patent or utility model | ||
| 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: 20130731 Termination date: 20181126 |