Engine valve driving device

A technology of engine valves and driving devices, which is applied in the direction of engine components, combustion engines, machines/engines, etc., can solve the problems of engine height increase, etc., and achieve the effects of reducing clearance, shortening reaction time, and reducing costs

Pending Publication Date: 2022-07-08
SHANGHAI UNIVERSOON AUTOPARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides a solid chain type engine valve driving device to solve the problem of increasing the height of the engine with the engine braking system in the prior art

Method used

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  • Engine valve driving device
  • Engine valve driving device
  • Engine valve driving device

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Embodiment Construction

[0116] According to an embodiment of the present invention, as figure 1 , 2 As shown in FIG. and 3 , the engine valve drive 100 may include a housing 210 , a start piston 162 , a drive piston 130 , a linkage mechanism 182 , and one or more of a guide mechanism 137 , an anti-rotation mechanism 138 , and a positioning mechanism 150 .

[0117] The case 210 may be the rocker arm or valve bridge of the engine. In this embodiment, the box body 210 is a rocker arm, which can be similar to the rocker arm (210b) of EP2384396. like figure 1 As shown, the rocker arm is mounted on a rocker arm shaft (not shown) through hole 212 .

[0118] like figure 1 As shown, the housing 210 includes an actuation piston bore 260 and a drive piston bore 190 . Preferably, the actuation piston bore 260 and the drive piston bore 190 intersect each other perpendicularly. The activation piston 162 is slidably disposed in the activation piston bore 260 . The drive piston 130 is disposed in the drive pi...

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Abstract

An engine valve driving apparatus (100) includes: a case (210) including a starting piston bore (260) and a driving piston bore (190); an activation piston (162) disposed in the activation piston bore (260); a drive piston (130) disposed in the drive piston bore (190) to drive an engine valve; wherein the drive piston (130) comprises at least one side surface (135) in sliding contact with an inner surface of the drive piston bore (190) such that the drive piston (130) can slide within the drive piston bore (190); the connecting rod mechanism (182) comprises a first connecting rod (184) and a second connecting rod (186); the drive piston (130) comprises a guide mechanism (137), where the guide mechanism (137) guides the first and second connecting rods (184, 186) to move in a plane between the first position and the second position, where at least a portion of the guide mechanism (137) is located below at least a portion of the at least one side (135) of the drive piston (130).

Description

technical field [0001] The present invention relates to an engine valve drive device. Background technique [0002] Conventional methods for actuating valves of vehicle engines are well known in the art and have been used for over a hundred years. However, due to the additional demands on engine emission control and engine braking, more and more engines require additional valve movements to be added to conventional valve movements, such as those for exhaust gas recirculation and those for engine braking. valve movement. [0003] A conventional engine brake is a box-type hydraulic drive mechanism placed on top of the engine. To accommodate this type of engine brake, a gasket was added between the cylinder head and the engine cover to create extra space. This adds height, weight and cost to the engine. These problems are caused by viewing the engine braking system as an additional accessory to the engine rather than an integral part of the engine. [0004] Another disadva...

Claims

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Application Information

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IPC IPC(8): F01L13/06F01L9/10
CPCF01L13/065F01L1/181F01L2013/105F01L1/18F01L1/20F01L1/46F01L13/0005
Inventor 奚正朱汝杰吕志杨魏韬张真曾春玲奚勇
Owner SHANGHAI UNIVERSOON AUTOPARTS CO LTD
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