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Rocker arm body capable of realizing braking function of engine

A technology of engine braking and rocker body, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as failure to meet braking requirements, and achieve the effects of reasonable structure, improved braking power, and convenient operation

Inactive Publication Date: 2013-02-20
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The total mass of modern cars is getting bigger and bigger, and the speed is getting higher and higher. Only relying on the main braking system of the vehicle itself can no longer meet the braking requirements of the vehicle under high-speed and heavy-load conditions.

Method used

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  • Rocker arm body capable of realizing braking function of engine
  • Rocker arm body capable of realizing braking function of engine
  • Rocker arm body capable of realizing braking function of engine

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the description that the present invention is done progress: as figure 1 , 2 As shown, a rocker body that can realize the engine braking function is characterized in that: a brake active chamber 2, a control valve chamber 3, and a brake driven chamber 4 are arranged on the exhaust rocker arm 1; The brake active valve 5 is installed in the active cavity 2, and the active valve return spring 6 is set on the active valve; the control valve 7 is installed in the control valve cavity 3, and the control valve return spring 8 is set on the control valve; the brake driven cavity 4. The brake slave valve 9 is installed inside, and the slave valve return spring 10 is set on the brake slave valve. The brake active valve works under the drive of a special cam; the brake active chamber 2 is located at the exhaust rocker arm 1. At the end, the control valve chamber 3 is located above the active brake chamber 2 , and the brake slave cha...

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Abstract

The invention relates to a rocker arm body capable of realizing a braking function of an engine, which is characterized in that an air exhausting rocker arm is provided with a braking driving chamber, a control valve chamber and a braking driven chamber, wherein the braking driving chamber is internally provided with a braking driving valve; a braking driving valve resetting spring is sleeved on the driving valve; the control valve chamber is internally provided with a control valve; a control valve resetting spring is sleeved on the control valve; the braking driven chamber is internally provided with a braking driven valve; a driven valve resetting spring is sleeved on the braking driven valve; the braking driving valve works under the driving of a special cam; the braking driving chamber is located at the tail end of the air exhausting rocker arm; the control valve chamber is located above the braking driving chamber; the braking driven chamber is located at the front end of the air exhausting rocker arm; and the braking driving chamber, the control valve chamber and the braking driven chamber are communicated through an oil path on the air exhausting rocker arm. The braking of an independent cam type engine can be realized by using the engine, namely one special cam is used for engine braking, so as to realize the independent cam braking at an air inlet side by a cam shaft of a top-arranged cam shaft engine, and therefore, the braking power is improved.

Description

technical field [0001] The invention relates to a rocker body capable of realizing the engine braking function, in particular to a rocker arm for auxiliary braking of a diesel engine, and belongs to the technical field of diesel engines. Background technique [0002] The total mass of modern vehicles is getting bigger and bigger, and the speed is getting higher and higher. Only relying on the main braking system of the vehicle itself can no longer meet the braking requirements of the vehicle under high-speed and heavy-load conditions. In order to ensure the safety performance of the vehicle, an auxiliary braking device must be added. Engine braking is to use the mechanical loss, pumping loss and compression work of the engine to generate the braking function through the turning of the car to the engine, thereby increasing the braking power of the car. [0003] When going down long slopes, rough mountain roads and other steep roads, engine braking must be used to effectively...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/06F01L1/18
Inventor 王鹏程邓金金
Owner CHINA FIRST AUTOMOBILE
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