★★★Product detail：

8516-038 Governor

8516-038 Hydraulic governor with rigid feedback mechanism
Its structure is basically the same as the above non-feedback hydraulic governor, only the upper end of the lever AC is not installed on A fixed hinge, but is connected to the piston rod of the servo piston. This change makes the relationship between the induction element, the hydraulic amplifier element and the oil control mechanism change as follows.
When the load is reduced, the engine speed increases, the fly ball opens out and moves the speed bar to the right. At this time, the servo piston has not yet moved, so the upper end A of the feedback lever AC is temporarily used as A fixed point, and the lever AC rotates counterclockwise around A, driving the slide valve to move to the right, opening the control hole, and the high-pressure oil enters the right chamber of the power cylinder, and the left chamber is communicated with the low pressure oil circuit. In this way, the high pressure oil pushes the servo piston to drive the fuel injection control rod to the left, and reduces the fuel supply according to the new load.
At the same time as the servo piston moves left, the lever AC swings left around point C and the spool connected to point B also moves left, causing the spool to move in the opposite direction. In this way, when the servo piston moves, the lever device that can have the opposite effect on the movement of the slide valve is called a rigid feedback system. When the adjustment process ends, the slide valve returns to the starting position, closes the control oil hole, and cuts off the oil line to the servo cylinder. At this time, the servo piston stops moving, the injection pump regulating rod moves to a new balanced position, and the engine works under the corresponding new load. Therefore, corresponding to the different load of the engine, the governor has different stable speed. Because the fuel supply needs to be changed when the engine load changes, the position of point A changes with the load. The B point connected with the slide valve should be in the original position in any stable condition, independent of the load. In this way, the position of point C must be changed accordingly with point A, resulting in a change in speed. If when the load is reduced, after the speed regulation process is over, when the slide valve returns to the original position in the middle, the servo piston is in the position of reducing the oil supply, so that point A is left, point C is right, because point C is right, the spring is further pressurized, and only running at a slightly higher speed can the centrifugal force of the fly ball and the spring pressure balance. This shows that after stable operation in load reduction hours, the speed of the diesel engine is slightly higher than the original. Similarly, when the load increases, after stable operation, the speed of the diesel engine is slightly lower than the original. The hydraulic governor with rigid feedback can ensure that the speed regulation process has stable working characteristics, but after the load changes, the diesel engine speed changes, and the stable speed d can not be zero.

8516-038

8516-038 Hydraulic governor with elastic feedback
It actually adds an elastic link – a buffer and a spring – to the “rigid feedback” device. One end of the spring is connected to a fixed fulcrum, while the other end is connected to a piston of the buffer. The buffer cylinder is rigidly connected to the piston of the server.
When the engine load is reduced, the speed increases, and the centrifugal force of the fly ball increases. Similarly, the slide valve moves to the right, while the servo piston moves to the left, reducing the amount of fuel supplied to the fuel injection pump. When the piston is moving at a high speed, the buffer and buffer piston move like a rigid body. As the servo piston 5 moves to the left, point A on the buffer and AC lever also moves to the left. This process is exactly the same as the governor of the above rigid feedback system. However, when the speed regulation process is near the end, the slide valve has returned to the original position, covering the oil circuit to the servo cylinder, and the buffer and the servo piston have stayed in the corresponding position of the new load. The compressed spring has the effect of elastic recovery, so that point A drives the buffer piston relative to the buffer cylinder to move to the right, back to the original position. The oil in the right cylinder of the buffer piston flows to the left through the throttle valve. As a result, the points on the AC lever are restored to the original position, and the governor sleeve is also returned to the original position due to the recovery of the speed. In this way, the speed of the engine remains the same, and when the load increases, the action process is reversed. The stable speed d of the governor is zero

5466-1000.
5466-1001.
5466-1002.
5466-1035.
5466-1036.
5466-1037.
5466-1045.
5466-1046.
5466-1047.
5466-1049.
5466-1050.
5466-1051.
5466-1105.
5466-1115.
5466-1141.

★★★Contact us

BeiLin

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★About Chengdu Sunshine Xi He

Chengdu Sunshine Xi He Electric Co., Ltd. specializes in selling the world’s major electrical brand products overseas direct procurement,

genuine inventory, price preferential after-sales warranty, complete models, the same product, not the same price and service.

Large supply of original imported DCS system accessories, PLC system accessories.

Main :ABB, GE Fanuco, Bentl Bentley, Triconex Invensys, Woodward Woodward, Foxboro, Foxboro,

Westinghouse /Emerson, Reliance Ryan, SchneiderModicon, A-B, HIMA dark horse, Motorola MOTOROLA,

Kollmorgen Kollmorgen Bosch/Rexroth/ Bosch Rixon, NI,YOKOGAWA Yokogawa, and other major brands of DCS system accessories,

robot system accessories, large servo system discontinued spare parts.

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