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Motor/pump assembly

A technology for motor pumps and motor shafts, which is applied in the direction of pumps, pump components, mechanical equipment, etc., can solve problems such as high cost, and achieve the effects of simple methods, simplified assembly, and compensation for assembly tolerances

Inactive Publication Date: 2009-03-11
CONTINENTAL TEVES AG & CO OHG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known diaphragm pumps do not meet these requirements due to vibrations or the high costs associated with sound / silencing measures

Method used

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Examples

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no. 1 example

[0050] figure 1 A first embodiment of an electric motor-pump unit 1 according to the invention is shown in perspective view, for example for a brake actuator of a motor vehicle brake system equipped with a pneumatic brake booster (not shown) Provide vacuum. The motor-pump assembly 1 comprises a pump 2 with a pump housing 5 and an electric motor 3 driving the pump 2 , which can be designed as a DC motor, for example.

[0051] In particular, the motor-pump unit 1 is shown in a longitudinal section along a first plane. figure 2 It can be seen that the pump 2 is designed as a double-diaphragm pump with two opposing working diaphragms 4 which are each stretched between the pump housing 5 and the working chamber cover 6 and thereby delimit the working chamber 7 . The working diaphragms 4 can be moved in opposite directions by means of a crank drive 8 , which comprises an eccentric body 9 and a connecting rod 10 for each working diaphragm 4 .

[0052] By showing a partial view of...

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PUM

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Abstract

In order to provide a motor / pump assembly (1, 101), comprising a dry-running pump (2, 102), which meets high requirements in relation to acoustic comfort, it is proposed according to the invention that the outlet channels (13, 113) are provided arranged in the working-space covers (6, 106) and in the pump housing (5, 105) in such a way that air which is expelled from the working spaces (7, 107) is routed into an inner space (28, 128) of the pump housing (5, 105), and that an air outlet unit (29, 129) is provided which makes low-noise expelling of the air possible from the inner space (28, 128).

Description

technical field [0001] The present invention relates to a motor-pump assembly, in particular to a motor-pump assembly for providing pressure to a brake actuator of a motor vehicle braking system with a pneumatic brake booster (especially a vacuum brake booster), the assembly comprising A pump and a motor driving the pump, wherein the pump is designed as a double-diaphragm pump with two opposing working diaphragms, the working diaphragms are respectively tensioned between the pump casing and the working chamber cover and thus delimit the working chamber, The diaphragm can be moved by means of a crank drive with an eccentric body and a connecting rod, wherein each working chamber is assigned an intake channel with an intake valve and an exhaust channel with an exhaust valve. Background technique [0002] A vacuum pump is used to provide a vacuum for the pneumatic brake booster, the inner cavity of which is divided into at least one vacuum chamber and a working chamber, the vac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/02F04B45/04
CPCB60T17/02F04B45/043F04B39/0061F04B45/047B60T17/008B60T13/52B60Y2400/81
Inventor J·舍恩尔奥M·吕费尔W·里特尔K·塞茨S·A·德鲁姆J·冈萨雷斯M·于尔根宁D·居德O·福尔克林
Owner CONTINENTAL TEVES AG & CO OHG
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