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Fuel gas power system of excavator

A technology of gas power and excavators, which is applied in the field of power systems, can solve the problems of rare applications in the field of excavators, and achieve the effects of reducing fuel consumption, reducing use costs, and reducing environmental pollution

Inactive Publication Date: 2014-01-15
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Gas engines and LNG-fueled heavy trucks and loaders have been used for a long time, but the application in the field of excavators is still rare

Method used

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  • Fuel gas power system of excavator

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Experimental program
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Effect test

Embodiment 1

[0011] The excavator gas power system of the present invention comprises a liquefied natural gas cylinder 5 , a vaporizer assembly 6 , a solenoid valve 4 , a voltage regulator 3 , an engine 1 and a main hydraulic pump 2 connected in sequence. A gasification chamber is arranged in the gasifier assembly 6 , and the gasification chamber is also connected with the engine 1 . The engine 1 is preferably a water-cooled electronically controlled gas engine.

[0012] When working: the liquefied natural gas in the liquefied natural gas cylinder 5 enters the gasification chamber in the vaporizer assembly 6 through the pipeline, and is gasified by absorbing heat from the body of the engine 1; the gasified natural gas enters the solenoid valve 4 ( Electromagnetic valve 4 is opened and closed under the control of engine 1 ECU, and is in a normally closed state under the shutdown state. This valve can cut off or restore fuel (natural gas) supply in time); the natural gas passing through elec...

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PUM

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Abstract

The invention relates to a power system of an excavator, in particular to a fuel gas power system. The fuel gas power system of the excavator comprises a liquefied natural gas bottle, a gasifier assembly, a magnetic valve, an engine and a hydraulic main pump, wherein the liquefied natural gas bottle, the gasifier assembly, the magnetic valve, the engine and the hydraulic main pump are connected in sequence. According to the fuel gas power system of the excavator, the gas engine (gas machine) is adopted for providing power for the excavator and aims to decrease fuel consumption and reduce use cost of users. In addition, due to the fact that the gas engine is controlled electrically, the fuel gas power system can meet the nation third grade emission standard, the environment pollution can be reduced, energy is saved and environmental protection is achieved.

Description

technical field [0001] The invention relates to a power system of an excavator, in particular to a gas power system. Background technique [0002] LNG (Liquefied Natural Gas) is the abbreviation of liquefied natural gas. When the temperature is lower than -162°C, natural gas can be liquefied and stored in containers as fuel for gas engines. Gas engines and LNG-fueled heavy trucks and loaders have been used for a long time, but the application in the field of excavators is still rare. Contents of the invention [0003] The invention aims to provide an excavator gas power system which saves fuel and reduces air pollution. [0004] The fuel gas power system of the excavator according to the present invention comprises a liquefied natural gas cylinder, a vaporizer assembly, a solenoid valve, an engine and a main hydraulic pump connected in sequence. [0005] Preferably, the solenoid valve is connected with the engine through a voltage stabilizer. [0006] More preferably, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM