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Valve throttling engine speed reducer

An engine and retarder technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as the decline of engine braking efficiency, and achieve the effect of reliable work, novel and ingenious conception, and light weight

Inactive Publication Date: 2005-09-28
马银良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At each speed of the engine, the opening of the exhaust valve controlled by the retarder has an ideal opening value. Under this opening, the engine has an ideal braking force, and the opening is too large or too small. , will reduce the braking performance of the engine

Method used

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  • Valve throttling engine speed reducer
  • Valve throttling engine speed reducer
  • Valve throttling engine speed reducer

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Experimental program
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 , figure 2 As shown, the valve throttling engine retarder of the present invention includes a housing 2, a solenoid valve 66, a one-way valve 80, a driving piston 10, an oil drain hole 32, an adjusting screw 36, and the like. It is directly installed on the cylinder head 3 of an internal combustion engine, and the housing 2 is equipped with parts required to complete the braking function.

[0032] The lubrication system (not shown) of the engine supplies lubricating oil to the electromagnetic valve 66 through the oil inlet passage 68, and the oil drain passage 70 communicates the electromagnetic valve 66 with the engine lubricating oil pool (not shown). The oil outlet passage 72 communicates with the one-way valve 80 and the solenoid valve 66 . When the solenoid valve 66 was energized, the low-pressure lubricating oi...

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Abstract

The novel engine retarder includes oil inlet channel, solenoid valve, oil outlet channel, non-return valve, work oil channel, driving piston, spring sheet, etc. It has two regulating structures, the first regulating structure has one regulating washer to regulate the interval between the screw plug and the limiting step on the regulating piston to ensure the precise moving distance of the driving piston, and the second regulating structure has regulating screw to regulate the assembly of screw plug and the regulating piston in proper position inside the piston cavity to ensure the precise gap between the driving piston and regulating piston and the precise initial opening height of the exhaust door. The present invention has also oil discharging channel to regulate the throttle opening and ideal braking force under different rotation speed.

Description

technical field [0001] The invention relates to a mechanical hydraulic device for controlling valve movement, in particular to a valve throttling engine retarder which can change the inherent movement law of the valve so that the engine can emit braking horsepower. Background technique [0002] The engine retarder can temporarily transform the engine into an air compressor, which is driven by the transmission system of the vehicle and continuously discharges high-pressure air to the exhaust pipe of the engine, thereby absorbing the kinetic energy from the vehicle and achieving slowing down. The purpose of vehicle movement speed. Therefore, it is an auxiliary brake device for modern vehicles, especially heavy-duty trucks and large passenger cars, which can significantly enhance the deceleration safety performance of the vehicle. [0003] The valve throttling type engine retarder has the advantages of simple structure, low cost and reliable operation, and its working noise is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D9/06
Inventor 马银良
Owner 马银良
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