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Multi-piston pump

A technology of multi-piston pumps and plunger pumps, which is applied in the direction of multi-cylinder pumps, pumps, liquid displacement machinery, etc., can solve various problems and achieve the effect of simplified production and compact structure

Inactive Publication Date: 2010-06-02
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the solution proposed there has the disadvantage that the hydraulic lengths of the bores in the first and second pressure circuits are different, resulting in the different pressure build-up times known in multi-piston pumps

Method used

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Examples

Experimental program
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Embodiment Construction

[0014] Then refer to Figures 1 to 3 A multi-piston pump 1 is described according to an exemplary embodiment of the present invention.

[0015] The multipiston pump 1 comprises a housing 2 , a first pump unit 3 and a second pump unit 4 . The first pump unit 3 comprises three plunger pumps 3a, 3b, 3c and the second pump unit 4 comprises three plunger pumps 4a, 4b, 4c. Such as image 3 It is shown particularly clearly that every third plunger pump is arranged around the first eccentric 5 and the second eccentric 6 . The two plunger pumps 3 a , 3 b of the first pump unit 3 and the one plunger pump 4 c of the second pump unit 4 are thus assigned to the first eccentric 5 . One plunger pump 3 c of the first pump unit 3 and two plunger pumps 4 a , 4 b of the second pump unit 4 are assigned to the second eccentric 6 . The plunger pumps 3a, 3b, 3c of the first pump unit 3 thus provide the pressure in the first pressure circuit I, while the plunger pumps 4a, 4b, 4c of the second pum...

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Abstract

The present invention relates to a multi-piston pump comprising a housing (2), a first pump unit (3) having a plurality of piston pumps (3a, 3b, 3c) for the pressure supply of a first pressure circuit(I), a second pump unit (4) having a plurality of piston pumps (4a, 4b, 4c) for the pressure supply of a second pressure circuit (II), a drive and an eccentric unit having a first eccentric (5) and asecond eccentric (6), wherein the first and the second eccentrics (5, 6) drive the plurality of piston pumps (3a, 3b, 3c; 4a, 4b, 4c), and wherein the first and second pump units (3, 4) comprise in each case at least one piston pump (3a, 3b; 4c) which can be driven by the first eccentric (5) and one piston pump (3c; 4a, 4b) which can be driven by the second eccentric (6), characterized in that ineach case one piston pump (3a, 3b; ; 4c) which is driven by the first eccentric (6) is arranged parallel to a piston pump (4a, 4b; 3c) which is driven by the second eccentric (6).

Description

technical field [0001] The invention relates to a multi-piston pump. Background technique [0002] Such a multi-piston pump is disclosed, for example, in DE 103 53 834 A1. Such multi-piston pumps are used, for example, for pressure build-up in brake systems in motor vehicles. The known multi-piston pump has 2 eccentrics, which are arranged in a row and each drive three piston pumps. The plunger pump is therefore arranged in two parallel planes at the level of the eccentric. The plunger pumps assigned to each eccentric are therefore arranged at different angles from one another around the eccentric. In order to prevent pressure fluctuations, the 2 plunger pumps of the first eccentric are connected together with 1 plunger pump of the second eccentric, and the 2 plunger pumps of the second eccentric are connected with the first eccentric 1 plunger pump together. The eccentrics are therefore arranged twisted relative to each other by an angle of approximately 150°. However...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/053F04B1/04
CPCB60T8/368F04B1/0538F04B1/0421
Inventor C·帕布斯特M·穆诺兹格雷舒克纳C·多伯舒茨
Owner ROBERT BOSCH GMBH