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motor pump assembly

A motor pump and component technology, which is applied in the field of invention and can solve problems such as high cost

Active Publication Date: 2016-11-16
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Such electrically driven pumps are equipped with or connected to a lubricant circuit, which means very high costs

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] figure 1 A known motor-pump assembly 1 is shown in longitudinal section, comprising a pump 2 with a pump housing 5 and an electric motor 3 driving the pump 2 , wherein the electric motor 3 can be designed as a DC motor, for example.

[0028] The pump 2 is designed as a double-diaphragm pump with two opposing working diaphragms 4 , which are each tensioned between the pump housing 5 and the working chamber cover 6 and thus provide for the working Chamber 7 delimits. The working diaphragms 4 are movable in opposite directions to each other by means of a crank gear 8 , which for each working diaphragm 4 comprises an eccentric 9 and a connecting rod 10 . The working chamber cover 6 has an upper cover 11 and a lower cover 12 which are airtightly welded, riveted or screwed to each other.

[0029] Inlet valves and outlet valves, not shown, are provided in the working chamber cover 6 . The air exhausted by the outlet valve is conducted via an exhaust channel in the working c...

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PUM

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Abstract

The invention relates to a motor pump assembly (1), in particular for supplying pressure for a brake actuating device of a motor vehicle braking system with a pneumatic brake booster, in particular a vacuum brake booster. The motor-pump assembly (1) includes a pump (2) and an electric motor (3) driving the pump (2), wherein the pump (2) is set to have two opposing working diaphragms (4) Double-diaphragm pumps, the working diaphragms are each tensioned between the pump housing (5) and the working chamber cover (6) and thus delimit the working chamber (7), and the working diaphragms can be moved by means of a crank drive (8) with an eccentric (9) and connecting rods (10), wherein the connecting rods (10) each have a connecting rod handle (37) and a connecting rod hole (33) made of plastic; 33'; 33''), and is movably supported on the eccentric wheel (9) by means of rolling bearings (32). In order to provide a motor-pump assembly (1) which meets the increasing requirements in terms of acoustic comfort, according to the invention, an elastic decoupling element is respectively provided between the connecting rod bore (33; 33'; 33'') and the rolling bearing (32) , the decoupling element suppresses the transmission to the roller bearing (32) of vibrations in the connecting rod shaft (37) that occur when the direction of force changes during the rotation of the crank drive (8).

Description

technical field [0001] The invention relates to a motor pump assembly, in particular for supplying pressure for a brake actuation system of a motor vehicle braking system with a pneumatic brake booster, in particular a vacuum brake booster , the motor-pump assembly includes a pump and an electric motor driving the pump, wherein the pump is configured as a double-diaphragm pump with two opposite working diaphragms, and the working diaphragms are tensioned / tightened on the pump housing and the working diaphragm respectively. Between the chamber covers and thus the working chamber is delimited, and the working diaphragm can be moved by means of a crank drive with an eccentric and a connecting rod, wherein the connecting rods each have a connecting rod shaft and a plastic The connecting rod hole is movably supported on the eccentric wheel by means of rolling bearings. Background technique [0002] In order to provide a vacuum for the pneumatic brake booster, the interior of whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/02F04B45/04F04B43/02
CPCB60T17/02F04B43/025F04B45/043B60T13/52B60Y2400/81F04B53/003
Inventor H·柯尼格M·吕费尔M·涅彭博格J·冈萨雷斯S·施泰纳
Owner CONTINENTAL AUTOMOTIVE TECH GMBH