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Method for controlling torque attenuation of air intake manifolds of engines

An intake manifold and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of low cost, high cost, and low efficiency, and achieve low cost, high efficiency, and low solution efficiency Effect

Inactive Publication Date: 2015-09-02
CHENGDU LINGCHUAN SPECIAL IND
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The invention provides a method for controlling the torque attenuation of the engine intake manifold, which solves the technical problems of low efficiency and high cost of the method for controlling the torque attenuation of the engine intake manifold in the prior art, and realizes The method for controlling the engine intake manifold torque attenuation is reasonably designed, with high efficiency and low cost technical effect

Method used

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  • Method for controlling torque attenuation of air intake manifolds of engines

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Embodiment 1

[0023] In Embodiment 1, a method for controlling engine intake manifold torque attenuation is provided, please refer to figure 1 , the method includes:

[0024] Analyze the intake manifold structure, fastener tightening process and torque attenuation characteristics;

[0025] Obtain intake manifold torque decay information;

[0026] Based on the intake manifold torque attenuation information, the structure and size of the intake manifold are improved to control the engine intake manifold torque attenuation.

[0027] Wherein, in the embodiment of the present application, the parts related to tightening on the intake manifold include: injection molded parts, cold inserts and sealing rings.

[0028] Wherein, in the embodiment of the present application, the fastener tightening process specifically includes:

[0029] (1) Manually assemble the intake manifold to the cylinder head, install bolts and nuts and pre-tighten 2 threads;

[0030] (2) Use a pneumatic tightening gun to p...

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Abstract

The invention discloses a method for controlling torque attenuation of air intake manifolds of engines. The method includes analyzing the structures of the air intake manifolds, processes for tightening fasteners and torque attenuation characteristics; acquiring torque attenuation information of the air intake manifolds; improving the structures and the sizes of the air intake manifolds on the basis of the torque attenuation information of the air intake manifolds and controlling the torque attenuation of the air intake manifolds of the engines. The method for controlling the torque attenuation of the air intake manifolds of the engines has the technical advantages of reasonable design, high efficiency and low cost.

Description

technical field [0001] The invention relates to the field of engine intake manifold design research, in particular to a method for controlling the torque decay of the engine intake manifold. Background technique [0002] The engine is divided into gasoline engine and diesel engine. The intake manifold structure materials of the two are inconsistent. The diesel engine is cast aluminum, while the gasoline engine is plastic. From the perspective of tightening technology, the intake manifold of the diesel engine is a hard connection, and the gasoline engine is a soft connection. , the soft connection structure is greatly affected by thermal expansion and contraction and vibration. The fasteners are prone to creep during the working process of the engine, resulting in the gradual attenuation of torque. Therefore, the torque attenuation of the intake manifold mostly occurs on gasoline engines. Torque decay of pipe fasteners can lead to leakage of combustible mixture, which in turn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104
Inventor 汪庭文黄柳志杨军
Owner CHENGDU LINGCHUAN SPECIAL IND