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Piston pump for brake

A piston pump and brake technology, which is applied to components, pumps, and multi-cylinder pumps for elastic fluid pumping devices, can solve the problems of reduced engine durability, increased weight, and increased engine prices, and achieves increased displacement. The effect of fluid volume and load reduction

Active Publication Date: 2016-08-17
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the piston outer diameter of the piston pump used for brakes is increased, the larger the outer diameter of the piston, the higher the pressure will act on the pump outlet (PUMP OUTLET) side, and the pressure load passing through the pump piston will increase, so the engine will be affected. If the load is large, there is a problem of reducing the durability of the engine. In addition, in order to improve the performance of the engine, the engine capacity should be large, so there are problems of increasing the price and weight of the engine.

Method used

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  • Piston pump for brake
  • Piston pump for brake
  • Piston pump for brake

Examples

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Embodiment Construction

[0039] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, reference symbols are attached to each drawing, and care should be taken to have the same reference symbols as much as possible even though the same components are shown in other drawings. In addition, preferred embodiments of the present invention will be described below, but the technical idea of ​​the present invention is not limited thereto, and can be variously implemented by those skilled in the art.

[0040] First, the configuration of a piston pump for a brake according to an embodiment of the present invention will be described.

[0041] Such as figure 1 As shown, the piston pump for the brake according to the embodiment of the present invention includes: a piston housing 10; an outer piston 21, which performs linear reciprocating motion inside the piston housing 10; and an inner piston 22, which is combined inside the out...

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Abstract

A piston pump for a brake includes: a piston housing; an outer piston which rectilinearly reciprocates in the piston housing; an inner piston which is coupled to an inner portion of the outer piston, and rectilinearly reciprocates together with the outer piston in a state in which the inner piston is coupled to the inner portion of the outer piston, or rectilinearly reciprocates alone in a state in which the outer piston is stopped; an outer return spring which supports a tip portion of the outer piston; an inner return spring which supports a tip portion of the inner piston; and a piston rod spring which supports rear end portions of the outer piston and the inner piston.

Description

technical field [0001] The present invention relates to a piston pump for brakes, in the case of low pressure acting on the outlet side, the outer piston operates simultaneously with the inner piston to increase the discharge volume of the pump, in the case of high pressure acting on the outlet side, only the inner piston operates, and then The load on the engine can be reduced. Background technique [0002] Generally speaking, the piston pump used in vehicle braking equipment discharges brake fluid from the wheel side to the master cylinder side when the wheel pressure is decompressed, and on the contrary when the wheel pressure is increased, the brake fluid is discharged from the master cylinder side. Drain the brake fluid to the wheel side. Operate the piston pump for the brakes as follows. Open the inlet ball valve (INLET BALL) and the brake fluid flows into the inlet (INLET) side. If the brake fluid flows into the sleeve (SLEEVE), close the inlet ball valve (INLET BA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B23/00F04B53/20F04B53/14
CPCF04B53/145F04B1/0408F04B1/0452F04B53/12F04B53/126F04B53/14
Inventor 崔瑛昶
Owner HYUNDAI MOBIS CO LTD
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