Engine speed limiting device, automobile provided with same and lifting device

A speed limiter, engine technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as easy damage, and achieve simple and effective control.

Active Publication Date: 2015-12-23
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the gasoline engine in the prior art whose rotating speed is far greater than that of the gear pump, so that the gear pump often operates at a state higher than its maximum allowable rotatin...

Method used

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  • Engine speed limiting device, automobile provided with same and lifting device
  • Engine speed limiting device, automobile provided with same and lifting device
  • Engine speed limiting device, automobile provided with same and lifting device

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Embodiment Construction

[0053] An engine speed limiting device provided by the present invention, an automobile with the speed limiting device and a lifting device will be described in detail below in conjunction with the accompanying drawings.

[0054] This embodiment provides an engine speed limiting device, such as figure 1 shown, including

[0055] The blocking structure is used to adjust the opening range of the throttle valve. It has at least a first position on the rotation path of the throttle rocker arm 17 and a second position different from the first position. When it is in the first position, the engine The throttle valve cannot be fully opened, when it is in the second position, the engine throttle valve can be fully opened;

[0056] The driving structure is used to drive the blocking structure to switch between the first position and the second position.

[0057] When the above-mentioned engine speed limiting device is used in the lifting device of a small freight car, the gear pump o...

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Abstract

The invention provides an engine speed limiting device, an automobile provided with the same and a lifting device. The engine speed limiting device comprises a blocking structure and a driving structure. Before an engine drives a gear pump of the lifting device to operate, the driving structure drives the blocking structure so that the blocking structure can be located in a first position, the blocking structure blocks a throttle valve of the engine at the moment so that the throttle valve can not be opened completely, in this way, the rotation speed of the engine is reduced, and then the rotation speed of the engine is made to be matched with the rotation speed of the gear pump; then the engine is started to drive the gear pump to operate, so that the gear pump operates at the nominal speed or the permissible maximum speed of the gear pump, and accordingly the gear pump is well protected. When the engine does not need to drive the gear pump to operate, the driving structure drives the blocking structure again to adjust the opening amplitude of the throttle valve so that the throttle valve can be opened completely, and the engine can operate normally.

Description

technical field [0001] The invention relates to an engine speed limiting device, an automobile with the same and a lifting device, especially suitable for gasoline engine speed limiting, and belongs to the technical field of speed limiting devices. Background technique [0002] For the convenience of unloading, many small trucks now install a lifting device at the bottom of the cargo compartment used for loading. The bottom surface becomes a slope, and the cargo falls down from the slope under the action of its own gravity, thereby improving the unloading efficiency. [0003] The commonly used lifting device is a lifting oil cylinder. When unloading is required, the operator pushes the lifting handle to open the oil outlet of the reversing valve assembly. The hydraulic oil flows from the hydraulic oil tank into the gear pump, and the gear pump pressurizes the hydraulic oil The hydraulic oil is input into the lifting cylinder, and the pressurized hydraulic oil pushes the lif...

Claims

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Application Information

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IPC IPC(8): F02B63/06F02D9/08F02D9/02
Inventor 刘文海焦增宪曹先进杨洪超
Owner BEIQI FOTON MOTOR CO LTD
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