Fully variable displacement oil pump for commercial vehicle

A technology for displacement machines and commercial vehicles, which is applied in the direction of lubricating pumps, pump components, mechanical equipment, etc., and can solve problems such as reducing the power of the oil pump, narrow speed range, unfavorable solenoid valve oil pump adjustment and control, etc.

Active Publication Date: 2022-04-08
HUNAN OIL PUMP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission ratio of this crankshaft direct drive method is 1:1. Since the maximum speed of the diesel engine is only about 2000rpm and the speed range is na...

Method used

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  • Fully variable displacement oil pump for commercial vehicle
  • Fully variable displacement oil pump for commercial vehicle
  • Fully variable displacement oil pump for commercial vehicle

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Embodiment Construction

[0033] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0034] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

[0035] In the description of the present invention...

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Abstract

The invention provides a commercial vehicle full-variable displacement oil pump which comprises a pump body, a pump cover, a variable sliding block, a driving shaft, a rotor and blades, a proportional electromagnetic valve and a safety valve are installed on the pump body, and a large through hole and a rotor cavity are formed in the pump body; a crankshaft gear is installed in the large through hole, the crankshaft gear is composed of a middle cylinder part and an annular gear tooth part, an inner hole of the cylinder part is used for being connected with an engine crankshaft, an annular groove is formed in the periphery of the cylinder part, and a steel cable baffle ring with a notch is installed in the annular groove; the large through hole is divided into a small hole section and a large hole section, and an annular step surface is formed between the small hole section and the large hole section; the variable sliding block, the driving shaft, the rotor and the blades are all installed in the rotor cavity, the pump cover is used for covering the rotor cavity, one end of the driving shaft penetrates out of a shaft hole of the pump cover and then is provided with a driving gear, and the driving gear is meshed with the crankshaft gear. Therefore, the transmission ratio can be increased to more than 2, the rotating speed range of the oil pump is expanded, and matching control of the electromagnetic valve is facilitated.

Description

technical field [0001] The invention relates to the technical field of lubricating systems of internal combustion engines, in particular to a fully variable displacement oil pump for commercial vehicles. Background technique [0002] In the prior art, many diesel engines use quantitative rotor pumps to provide lubrication for the engine, and the crankshaft of the engine is directly inserted into the shaft hole of the inner rotor to drive the quantitative rotor pumps for operation. The transmission ratio of this crankshaft direct drive method is 1:1. Since the maximum speed of the diesel engine is only about 2000rpm and the speed range is narrow, it is not conducive to the use of solenoid valves to regulate and control the oil pump, and it is difficult to reduce the oil pump to the maximum extent. power. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fully variable displacement oil pump for commercial vehicles...

Claims

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Application Information

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IPC IPC(8): F01M1/02F01M11/00F04C15/00F16N13/20
Inventor 邓鹏辉袁新绪许仲秋刘光明佘笑梅
Owner HUNAN OIL PUMP
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