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Speed regulation control device

A control device and speed regulation technology, applied in engine control, fuel injection control, fuel injection pump, etc., can solve problems affecting diesel engine performance indicators and poor control accuracy of compression springs

Active Publication Date: 2021-12-07
CHONGQING HONGJIANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The governor generally uses the moving spring seat to compress the speed regulating spring, thereby adjusting the oil circuit, and pushing the power piston to control the speed. When the speed regulating spring is too rigid, the control accuracy of the direct compression spring is poor, which affects the performance index of the diesel engine.

Method used

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing.

[0032] Such as figure 1 As shown, in this embodiment, a speed regulating control device includes a speed regulating spring 1, a speed regulating piston cylinder 2, a lever 3, a floating head 4, a feedback connecting rod 6, a speed regulating piston 8, a speed regulating piston rod 9, The minimum speed limit screw 10, the feedback seat 11, the first cylindrical pin 12, the feedback cam 13, the maximum speed limit screw 14 and the one-way valve 15, the specific connection relationship is as follows:

[0033] The piston portion of the speed regulating piston 8 slides with the speed regulating piston cylinder 2 and is liquid-tight, and the rod portion of the speed regulating piston 8 extends out of the speed regulating piston cylinder 2 . The speed regulating piston rod 9 is arranged coaxially with the rod portion of the speed regulating piston 8 and is fixedly connected toget...

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Abstract

The invention discloses a speed regulation control device which comprises a speed regulation piston cylinder, a speed regulation piston, a speed regulation piston rod, a lever, a feedback cam, a one-way valve, a feedback seat, a feedback connecting rod and a speed regulation spring. Control oil pressure is received in the speed regulation piston cylinder to push the speed regulation piston and the speed regulation piston rod to move, the movement direction is determined by comparing the control oil pressure with spring force below the speed regulation piston cylinder, and therefore the control oil pressure is compared with the speed regulation spring to control a sliding valve to move to control the rotating speed. The feedback connecting rod is connected with the feedback cam through a first cylindrical pin, and a diesel engine can be more stable in the operation process by adjusting the feedback cam. Displacement signals can be converted into oil pressure, and then the rotating speed of the diesel engine is controlled through the oil pressure.

Description

technical field [0001] The invention belongs to the technical field of diesel engines, and in particular relates to a speed regulating control device. Background technique [0002] The governor is a speed control mechanism of the diesel engine. The condition for a diesel engine to run stably at a certain speed is that the output power must be balanced with the external load, and the change of the external load will definitely cause a corresponding change in the speed of the diesel engine. The output power of the diesel engine is directly related to the amount of fuel delivered to the cylinder by the fuel injection pump; if the fuel supply of the fuel injection pump remains unchanged, the speed will increase when the external load decreases; and the speed will decrease when the external load increases. The function of the governor is to automatically increase the fuel supply of the fuel injection pump when the speed of the diesel engine decreases; to automatically reduce the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D1/04
CPCF02D1/04F02D1/045F02D2001/0085
Inventor 龙定江徐茂李胜罗函明余长虹王勇钟旭
Owner CHONGQING HONGJIANG MACHINERY
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