Steering pump of automobile power steering system

A technology for automotive power steering and steering pumps, applied to rotary piston pumps, fluid steering mechanisms, pumps, etc., can solve problems such as short service life and poor reliability, and achieve the effects of avoiding high temperature deterioration, prolonging life, and avoiding aging

Inactive Publication Date: 2011-03-23
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the existing two-port structure steering pump (two-line pump) has short service life and poor reliability

Method used

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  • Steering pump of automobile power steering system
  • Steering pump of automobile power steering system
  • Steering pump of automobile power steering system

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Experimental program
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Embodiment Construction

[0015] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0016] Such as Figure 1 to Figure 5 As shown, the steering pump 1 of the present invention includes a gear 11, a housing 24, a setter 17 in the housing, a rotor 18, blades 19, an oil distribution plate 16, a bearing 13, a spindle 12, a rear cover 22, and a retaining ring 21 , steady flow overflow valve 23, flow control spring 232, valve cover 234, spring 15, oil seal 14 and seal ring 20, etc., each component such as figure 2 As shown, they are installed sequentially as required (the connection relationship and relative position thereof are prior art, and will not be described in detail here). An overflow hole 235 is drawn out from the installation part of the steady flow overflow valve on the housing (that is, the valve...

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Abstract

The invention discloses a steering pump of an automobile power steering system, which comprises a gear driven by an engine, a spindle and a rotor, wherein a vane in the rotor is attached to the inner surface of a stator tightly under the action of centrifugal force to complete the process of oil sucking and pressing, an oil inlet of the steering pump is communicated with a steering oil storage tank, an oil outlet is communicated with a steering gear assembly. In addition, the steering pump also comprises a current-stabilizing overflow valve which is communicated with a steering pump oil chamber and used for controlling the maximum rated pressure of oil liquid in the steering pump, an overflow hole is arranged at the valve hole of the current-stabilizing overflow valve on a steering pump shell, and the overflow hole is communicated with the steering oil storage tank. The steering pump has the advantages of simple structure and good reliability; and by the invention, the problem that the oil temperature of the steering pump is raised quickly in specific conditions can be solved efficiently.

Description

technical field [0001] The invention relates to a steering pump, in particular to a steering pump of an automobile power steering system. Background technique [0002] At present, most domestic steering pumps have two oil ports, one is the oil inlet and the other is the oil outlet. Use the oil inlet hose to connect the oil inlet of the steering pump and the oil outlet of the steering oil storage tank, and use the oil outlet hose to connect the oil outlet of the steering pump to the oil inlet of the steering gear. This structure is vividly called a two-line pump. Two tubing. Since most steering gears in China do not carry stroke unloading valves and safety valves, when the steering wheel is turned to the bottom or the vehicle is turning in a place with poor road conditions (such as construction sites, mine roads, etc.), the direction control valve of the steering gear (Rotary valve) is in the closed state, so that the oil passing through the steering gear is basically zero,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/344B62D5/06
Inventor 周积才罗梅兰莫有瑜
Owner GUANGXI YUCHAI MASCH CO LTD
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