Air-start protection device for diesel engine and air-start diesel engine including the device

A protection device, gas start technology, applied in the direction of machine/engine, starting device with fluid drive, engine starting, etc., can solve the problem of air motor tooth knocking, etc., achieve low pressure level, solve the gas motor tooth knocking problem, The effect of simple structure

Inactive Publication Date: 2011-11-30
SANY HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an air-start protection device for diesel engines and an air-start diesel engine including the device, so as to solve the problem of tooth beating of air motors caused by misoperation and other reasons

Method used

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  • Air-start protection device for diesel engine and air-start diesel engine including the device
  • Air-start protection device for diesel engine and air-start diesel engine including the device
  • Air-start protection device for diesel engine and air-start diesel engine including the device

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Embodiment Construction

[0029] Such as Figure 1-2 As shown, the function of the diesel engine air starting protection device of the present invention is to be installed in the first air control reversing valve 6A before the manual valve (starting button) 5, and be installed in the first air control reversing valve 6A and the manual valve (stopping) Button) between the second air control reversing valve 6B between 9 is realized. After the diesel engine works normally, the air compressor 3 outputs compressed air all the way to control the automatic reversing of the first air control reversing valve 6A, shuts off the control air circuit, makes the manual valve (start button) 5 invalid, and realizes the diesel engine air (start) Protection of motor 7. When the manual valve (stop button) 9 controls the diesel engine to stop, it also controls the reversing of the second air-controlled reversing valve 6B, so that the residual pressure in the air path from the air compressor 3 to the first air-controlled r...

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Abstract

The invention relates to the field of air startup of diesel engines, in particular to an air startup protection device of a diesel engine. On a control air course of the air startup protection device of the diesel engine, a first reversing valve is arranged in front of a manual valve serving as a start button; or the first reversing valve is arranged between the manual valve serving as the start button and a starting valve; and a second reversing valve is arranged between the first reversing valve and a manual valve serving as a parking button. After the diesel engine works normally, an air compressor outputs a path of compressed air to control the reversing valves to reverse, so that the manual valve (the start button) fails, tooth breakage caused by restart of an air motor due to error operation or damage of the manual valve is avoided, a gear or the air motor is prevented from being damaged, the problem of tooth breakage of the motor due to error operation is radically solved, and the air motor is better protected. The air startup protection device does not contain electric elements, so the device has simple principle structure. Moreover, the invention also discloses the air startup diesel engine comprising the air startup device.

Description

technical field [0001] The invention relates to the field of diesel engine gas starting, in particular to a diesel engine gas starting protection device. In addition, it also relates to an air-start diesel engine comprising the device. Background technique [0002] At present, diesel engine vehicles (especially mining diesel engine vehicles) generally do not use start-up protection devices, and sometimes misuse causes the air motor to restart, resulting in toothing and damage to the gears, or even damage to the entire air motor. At the same time, the manual valve with self-locking is very inconvenient to operate, which increases the difficulty of operation for the driver, and after the diesel engine works normally, if the manual valve is damaged, the air motor will always be in the starting state, which will directly cause damage to the air motor. [0003] The equipment that uses gas to start the diesel engine is equipped with a start button. The start button is generally i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N7/00
Inventor 刘兵金嵘孙鸿祥张志喜周旭付贵付卫坤
Owner SANY HEAVY EQUIP
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