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Oil pump

一种油泵、齿轮泵的技术，应用在泵、泵元件、旋转活塞式泵等方向，能够解决大噪音、部件损坏等问题，达到高效率的效果

Inactive Publication Date: 2005-02-16
VOITH TURBO GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This also resulted in loud noises and damage to components due to cavitation

Method used

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  • Oil pump
  • Oil pump
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] from Figure 1a An internal gear pump with the spacer can be seen in the figure. The internal gear pump has an externally meshing drive wheel 10 and an internally meshing driven wheel 11 meshing with each other. The driving wheel 10 is located eccentrically in the driven wheel 11 as indicated by the dashed centerline axis. Due to the eccentric positioning, a sickle-shaped space is created between the driving wheel 10 and the internally toothed driven wheel 11 . Inserted in the sickle-shaped space is a spacer 14 whose front side, ie its blunt side, is supported by pins. The sharper side of the spacer 14 opposite the blunt edge fits the section of the apex of the sickle-shaped space, leaving a narrower gap in between.

[0019] The drive wheel 10 drives the internal tooth driven wheel 11 by rotating around its own longitudinal axis. The internal gear 11 is rotatable in a housing 16 which encloses the internally toothed driven wheel 11 .

[0020] The spacer 14 has two a...

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PUM

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Abstract

The hydropump, and especially a gear pump, has a pressure chamber (1), a suction chamber (2), and at least one displacement component (3) which is driven to switch between the pressure chamber and suction chamber so that hydraulic medium is pumped from the suction chamber into the pressure chamber. From the pressure chamber which is shut-off pressure tight in relation to the suction chamber, a backflow connection (4) carrying hydraulic medium, provided preferably in the pressure build-up section and with a predetermined flow passage, leads to the suction chamber.

Description

technical field [0001] The invention relates to an oil pump according to the preamble of claim 1 . Background technique [0002] This type of oil pump can also be called a hydraulic pump, and is especially used in the field of industrial hydraulics to pump hydraulic oil from a first pressure level to a second pressure level. Usually this type of pump draws oil from the oil sump and delivers it in a closed circuit, so that the oil is reintroduced into the oil sump after passing through the working path. Usually the size of the oil tank is designed so that it can accommodate the size of the oil volume, which is equivalent to 3 times to 5 times the oil volume passing through the oil pump per minute. [0003] In this way, the following process can be achieved: the oil which was introduced into the oil sump beforehand often also introduces its own air or contains air in the oil when the oil is introduced into the oil sump. With a larger sump, the supplied oil can remain in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C2/08F04C2/14F04C15/00
CPCF04C2/088F04C15/0046F04C2/101F04C15/0049F04C2/14F04C2/10
Inventor 弗朗茨·阿博加斯特彼得·佩泽
Owner VOITH TURBO GMBH & CO KG