Electromechanical switching control mechanism of double-pulse speed governor

A control mechanism and governor technology, which is applied in engine control, fuel injection control, machine/engine, etc., can solve the problems of small working capacity and poor reliability, and achieve the goal of improving reliability, facilitating full automation, and realizing full automation Effect

Active Publication Date: 2012-02-15
CHONGQING HONGJIANG MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The control mechanism of the electronic governor adopts electronic method, and the actuator adopts mechanical method. It is characterized by high spe...

Method used

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  • Electromechanical switching control mechanism of double-pulse speed governor
  • Electromechanical switching control mechanism of double-pulse speed governor
  • Electromechanical switching control mechanism of double-pulse speed governor

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Embodiment Construction

[0023] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] see figure 1 , the electromechanical switching control mechanism is a part of the double-pulse governor actuator, which is a set of electromagnetic conversion pilot servo adjustment structure, including electromagnetic coil 4, ring permanent magnet 5, pilot control slide valve 7 and servo piston 6, switching Lever 2, feedback lever 3, reset piston 1 and other parts. The ring-shaped permanent magnet 5 is installed in the magnet coil 4 , the inner ring surface of the ring-shaped permanent magnet 5 is fixed on the core rod of the pilot control slide valve 7 , and a bias spring 9 is installed on the upper end of the core rod. The upper end of the reset piston 1 is fixedly connected to one end of the feedback lever 3 , and the other end of the feedback lever 3 is fixedly connected to the switching lever 2 . One end of the switchi...

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PUM

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Abstract

The invention discloses an electromechanical switching control mechanism of a double-pulse speed governor. The mechanism is used for automatically switching the electronic control of the speed governor to mechanical control when the electronic control part breaks down. Under the normal circumstance, the control current of electromagnet in an actuating mechanism is increased when an diesel engine load is increased and speed is lowered; a control valve moves downwards to cause high-pressure oil to flow below a servo piston; the left end of a switching lever is connected with a reset piston by ahinge pin to move downwards to cause the main control valve to move downwards; and therefore, a power piston moves downwards and fuel is added so as to drive an output shaft to rotate towards fuel adding direction to improve regulation speed. When the electronic control part of the speed governor loses effect after failing and the revolving speed of the diesel engine is lowered to be lower than 5% of the normal speed set by the speed governor, the switching lever and a slide valve are completely separated without contacting; at the time, a high-response electromagnetism servo mechanism does not take effect; and the revolving speed of the diesel engine is controlled by the mechanical part of the speed governor.

Description

technical field [0001] The invention belongs to the field of diesel engines, and in particular relates to an electromechanical switching control mechanism of a double-pulse governor suitable for a series of diesel engines with a power of about 5000kW. Background technique [0002] With the rapid development of electronic technology, the governor for high-power diesel engine has developed to today, and great changes have taken place. From the earliest purely mechanical governors and hydraulic governors, electronic governors and electro-hydraulic governors are commonly used today. [0003] The speed sensing mechanism, control mechanism and actuator of the mechanical speed governor are all mechanical, which has the advantage of high reliability, but has the disadvantages of small working capacity and low precision of the speed governor, and is generally only used in small high-speed diesel engines. [0004] The speed sensing mechanism of the hydraulic governor adopts a mechani...

Claims

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Application Information

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IPC IPC(8): F02D1/12
Inventor 杨恩志宋毕春雷和练
Owner CHONGQING HONGJIANG MACHINERY
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