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Pump insert

A technology of inserts and stagnation points, which can be used in pump components, pumps, engine components, etc., and can solve problems such as the complex structure of the pump pressure plate

Active Publication Date: 2017-08-01
HANON SYST EFP DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to a more complex structure at the pump pressure plate

Method used

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Examples

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Embodiment Construction

[0014] figure 1 A cross section of the pump 1 is shown. The pump 1 comprises a pump insert 2 which, for the sake of illustration of the pump 1 , is mounted in a separate gearbox 4 . In this example, the gearbox 4 contains a stepped blind hole in which the pump insert 2 is arranged. The pump insert 2 comprises a first pressure plate 7 , a contour ring 9 , a rotor 11 and a second pressure plate 13 . Radially displaceable blades 15 are arranged in slots of the rotor 11 , which run during rotation of the rotor 11 in such a way that their blade upper edges follow the contour of the contour ring 9 , wherein the contour ring 9 Also known as a cam ring. In a manner corresponding to the profile of the profile ring or cam ring 9 , here between two adjacent vanes 15 small chambers are formed, the size of which increases or decreases depending on the profile section, and between the increased or reduced dimensions During the reduction, the chamber sucks up oil and ejects it again.

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PUM

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Abstract

A pump insert without a dedicated housing includes a first pressure plate, a cam ring, a rotor, a second pressure plate, and radially displaceable vanes arranged in slots of the rotor and which run with a vane upper edge thereof engaging a contour of the cam ring during rotation of the rotor. The cam ring includes stagnation point protrusions which are configured as separate, moveable components fastened to the cam ring.

Description

technical field [0001] The invention relates to a pump insert without a dedicated casing, having a first pressure plate, a cam ring, a rotor and a second pressure plate, wherein radially displaceable The blades run during rotation of the rotor in such a way that the blade upper edges of the blades follow the contour of the cam ring and the cam ring has a stagnation point protrusion. Background technique [0002] DE 10 2011 055 020 A1 discloses a pump insert without a dedicated tank. Such pump inserts, also known as cartridge pumps, are used, for example, in gearboxes. [0003] In order to achieve adequate charging of the pump, the end of the suction line must be closed. For this purpose, projections are mounted on the cam ring of the pump, said projections engaging in recesses of the housing. [0004] In the prior art, the protrusion serving as the end of the suction duct and forming the stagnation point is sintered or forged onto the cam ring. In this way, the shaping a...

Claims

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Application Information

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IPC IPC(8): F04C2/344F04C15/06
CPCF04C2/344F04C15/06F01C21/10F04C2230/60F04C2240/805F04C18/344F04C2240/20F04C2240/30
Inventor 罗尔夫·波佩尔卡鲍里斯·津克
Owner HANON SYST EFP DEUT GMBH
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