Flow.pressure combined control valve and pressure-limited, flow-limited hydraulic pump

A combined control and pressure control technology, applied in the field of motor vehicle power steering pump and combined control valve, to achieve the effect of large product development and promotion transformation value, obvious advantages and long working life

Inactive Publication Date: 2007-03-28
彭利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the comprehensive performance of this kind of steering pump can basically meet the technical requirements of the c

Method used

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  • Flow.pressure combined control valve and pressure-limited, flow-limited hydraulic pump
  • Flow.pressure combined control valve and pressure-limited, flow-limited hydraulic pump

Examples

Experimental program
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Embodiment Construction

[0013] Here, the specific implementation of the utility model is described through three examples.

[0014]The first embodiment is the vane type automobile steering pump equipped with the flow and pressure combined control valve of the present invention, the specific structure is as shown in Figure 4 and Figure 5; Assembling combination, blades 104 are installed in each blade groove of the rotor, the stator 105 is set on the outer circumference, the front distribution plate 102 and the rear distribution plate 106 are assembled on both sides, and they are assembled in the inner cavity of the housing 100, and the inner cavity is sealed by the rear end cover 107. The port plug, defined by the bore with a wire retaining ring 108, thus constitutes the main structure of this embodiment. Other marks in the figure: 109 is the compression spring, 110 is the O seal ring, 111 is the lip seal ring of the rotating shaft, 112 is the self-sealing rolling bearing, 113 is the transmission gear...

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Abstract

This invention relates to a combined control valve of flux and pressure and a hydraulic pressure pump for limiting pressure and flux, in which, an inner cavity of a post valve core with a conic node and bottom is assembled with a ball valve or a cone valve and a spring to make up of a pressure control structure, said valve core is assembled in the inner cavity of the valve to be matched with the conic node and conic face to intervals between conic faces, that is the damp channel to make up of a flux control structure for limiting the flux of the working solution, said pump takes a gear pump, a vane pump or a slipper pump as the main structure to assemble said valve in the bottom hole set on the shell to constitute said pressure and flux limit hydraulic pump.

Description

1. Technical field: [0001] This product invention relates to a combined control valve for controlling the flow and pressure of pressure working fluid output by a hydraulic pump or other hydraulic sources and a rotary positive displacement hydraulic pump equipped with such a control valve; in particular, it relates to a control valve and The hydraulic pump is a motor vehicle power steering pump with an integral structure and a combined control valve assembled therein. 2. Background technology: [0002] The background technology closest to the invention of this product is the product technology of the motor vehicle steering pump generally in use at present. This kind of steering pump is basically formed by assembling flow and pressure combined control valves on the casing of a general-purpose vane hydraulic pump. [0003] Although the overall performance of this kind of steering pump can basically meet the technical requirements of the vehicles currently equipped, there are s...

Claims

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Application Information

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IPC IPC(8): F04C28/24F04B49/00F04C2/10F04C2/344F04B1/12
Inventor 彭利彭凌宇
Owner 彭利
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