Temperature control system of in-cylinder direct injection gasoline injector

A gasoline injector and temperature control system technology, applied in the charging system, machine/engine, fuel injection device, etc., can solve the problems of high particulate matter emission, inability to accurately control the fuel temperature, and difficulty in starting the exhaust gas. The effect of improving heating efficiency

Inactive Publication Date: 2017-02-01
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the difficulty of starting direct-injection gasoline engines under cold start conditions and the excessive emission of particulate matter in exhaust gas have always been the focus of research in academic and industrial circles

Method used

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  • Temperature control system of in-cylinder direct injection gasoline injector
  • Temperature control system of in-cylinder direct injection gasoline injector
  • Temperature control system of in-cylinder direct injection gasoline injector

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific examples and with reference to the accompanying drawings.

[0019] see first figure 1 , figure 1 It is a sectional view of the overall structure of the fuel injector involved in the present invention. As can be seen from the figure, the temperature control system of the direct injection gasoline injector in the cylinder of the present invention includes a fuel temperature control assembly 3 arranged on the injector and an engine control unit (not shown) arranged on the engine compartment, the described The needle valve 11 of the in-cylinder direct injection gasoline injector is bound in the guide tube 12 along the inner edge of the guide pipe 12 through the bottom-up valve seat 1, the needle valve guide seat 2, the heating cylinder insulation pad 10, the fuel temperature control ass...

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Abstract

A temperature control system of an in-cylinder direct injection gasoline injector comprises a temperature control module arranged in the gasoline injector and an engine control unit arranged in a cab. According to the temperature control system, fuel oil temperature of the gasoline injector can be collected accurately and compared with the optimal fuel oil temperature, the engine control unit controls a power source to apply required heating electric power to a heating cylinder, and accurate closed-loop control over the optimal fuel oil temperature is achieved.

Description

technical field [0001] The invention relates to a gasoline engine fuel injector, in particular to a temperature control system for an in-cylinder direct-injection gasoline fuel injector. Background technique [0002] The wide application of gasoline engine direct injection system enhances the transient response capability of gasoline engine and improves its fuel economy at the same time. However, the problems of difficult start-up of direct-injection gasoline engines under cold start conditions and excessive emission of exhaust particulate matter have always been the focus of research in academic and industrial circles. Studies have shown that properly raising the fuel temperature to achieve fuel flash spray can significantly improve the fuel atomization and evaporation effects under low fuel injection pressure conditions, reduce gasoline engine exhaust emissions, and improve fuel economy. [0003] At present, all such technologies for heating fuel oil basically realize the...

Claims

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Application Information

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IPC IPC(8): F02M53/06F02M61/10
CPCF02M53/06F02M61/10F02M2200/248
Inventor 许敏杨杰
Owner SHANGHAI JIAO TONG UNIV
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