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Liquified gas or compressed natural gas automobile fuel gas multipoint sequencial jet system

A compressed natural gas and sequential injection technology, applied in fuel injection control, electrical control, engine control, etc., can solve problems such as unsatisfactory control accuracy, responsiveness, and unsatisfactory gas economy, and achieve stable operation and good applicability , the effect of precise control

Inactive Publication Date: 2007-01-31
SHANGHAI INTERNAL COMBASTION ENGINE INST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing automotive gas injection systems generally use electronically controlled single-point injection and electronically controlled multi-point continuous injection systems, such as Chinese Patent Application No. 02137675.1 discloses a petroleum liquefaction Gas vehicle multi-point injection system, although electronically controlled single-point injection and electronically controlled multi-point continuous injection system has the characteristics of low price and convenient installation and use, but its control accuracy, responsiveness and gas economy are not ideal, especially not Meet the requirements of stringent emissions regulations

Method used

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  • Liquified gas or compressed natural gas automobile fuel gas multipoint sequencial jet system
  • Liquified gas or compressed natural gas automobile fuel gas multipoint sequencial jet system
  • Liquified gas or compressed natural gas automobile fuel gas multipoint sequencial jet system

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Embodiment Construction

[0016] see figure 1 , a liquefied gas or compressed natural gas vehicle gas multi-point sequential injection system, including a steel cylinder 1, a gas filling combination valve 2, an integrated valve 3, an electromagnetic switch valve 4, a pressure sensor 5, a water temperature sensor 6, a pressure reducer 7, and a stop valve 8. Gas filter 9, gas common rail pipe 11, gas injection solenoid valve 12, absolute pressure sensor 13, transfer switch 14, controller 15 and original vehicle controller 16. The integrated valve 3 is set on the steel cylinder 1 and connected with the steel cylinder 1 with a high-pressure pipe, the inlet of the integrated valve 3 is connected with the combined gas filling valve 2 with a high-pressure pipe, and the outlet of the integrated valve 3 is connected with the inlet of the electromagnetic switch valve 4 with a high-pressure pipe. The outlet of the electromagnetic switch valve 4 is connected with the pressure reducer 7 with a high-pressure pipe, a...

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Abstract

The invention comprises a steel cylinder, an air-filled composite valve, an integrated valve, a magnetic switch valve, a pressure-relief valve, a stop valve, a gas filter, a changeover switch, a gas common rail pipe, a jet magnetic valve, an absolute pressure transducer and a controller. Several jet magnetic valves and the absolute pressure transducer are mounted on the gas common rail pipe. The control lines of the stop valve, the magnetic switch valve, the integrated valve and the jet magnetic valve and the signal wire of the absolute pressure transducer are connected with the controller separately.

Description

(1) Technical field [0001] The invention relates to a vehicle engine fuel supply system, in particular to a vehicle gas multi-point sequential injection system using liquefied gas or compressed natural gas. (2) Background technology [0002] Existing automobile gas injection systems generally adopt electronically controlled single-point injection and electronically controlled multi-point continuous injection systems, such as Chinese Patent Application No. 02137675. The controlled multi-point continuous injection system has the characteristics of low price and convenient installation and use, but its control accuracy, responsiveness and gas economy are not ideal, especially it cannot meet the requirements of strict emission regulations. (3) Contents of the invention [0003] The object of the present invention is to provide a liquefied gas or compressed natural gas vehicle gas multi-point sequential injection system, which has high control precision, high economy and lower ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/26
Inventor 齐洪元胡毅
Owner SHANGHAI INTERNAL COMBASTION ENGINE INST
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