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Low-noise gear pump

A gear pump, low noise technology, used in pumps, pump components, rotary piston pumps, etc., can solve problems such as increasing manufacturing costs

Inactive Publication Date: 2017-06-27
南京路博利尔精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But here additional components have to be installed, which increases manufacturing costs

Method used

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  • Low-noise gear pump

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Embodiment Construction

[0015] The present invention is further illustrated below. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art can modify various equivalent forms of the present invention. fall within the scope defined by the appended claims of this application.

[0016] A low-noise gear pump, the structure of which comprises: an upper cover 4, a middle cover 3, a lower cover 2, a driving wheel 1, and a driven wheel 6; The elastic rubber layer 5 that vibrates in the pump body is fastened up and down the multi-layer structure through the fasteners that run through the upper cover plate 4, the middle cover plate 3 and the lower cover plate 2.

[0017] As a preference, the housing is composed of an upper cover 4 , a middle cover 3 , and a lower cover 2 in a three-layer flat structure.

[0018] As a preferenc...

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Abstract

The invention discloses a low-noise gear pump which includes a shell, a driving gear, a driven gear, and a chamber, which is formed by the shell and has an upper surface and a lower surface in parallel. Elastic rubber layers are formed on some parts of the structure of the shell and are used for reducing vibration during operation of the pump. The multilayer shell structure is vertically fastened by means of a fastener that penetrates through the shell, so that layers in the multilayer shell structure are contacted with each other elastically, thus effectively reducing noise generated due to resonance during operation of the gear pump.

Description

technical field [0001] The invention belongs to pumps, in particular to a low-noise gear pump. Background technique [0002] Such pumps are used as standard in power steering systems of motor vehicles as part of motor-pump assemblies. [0003] Due to their construction, gear pumps tend to be noisy due to the pulsating fluid delivery. Therefore, in addition to striving for a simple and economical manufacture of the pump, there is also a requirement to reduce the noise generation. [0004] Thus, for example, DE 10 2005 002 757 A1 discloses a gear pump in which a flat seal is provided between the pump chamber part of the housing and the pump cover. However, additional components have to be installed here, which increases the manufacturing costs. Contents of the invention [0005] The purpose of the present invention is to address the deficiencies of the prior art, through such a structure, including the casing, and the upper and lower parallel chambers formed by the casing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C15/00F04C2/14
CPCF04C2/14F04C15/00F04C2240/802
Inventor 于景国其他发明人请求不公开姓名
Owner 南京路博利尔精密机械有限公司
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