Internal gear machine

A technology of gear machines and gears, which is applied to mechanical equipment, machines/engines, liquid fuel engines, etc., and can solve problems such as the balance pressure is not constant

Active Publication Date: 2018-12-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leakage depends on the wear, temperature and rotational speed of the internal gear machine, so the balance pressure is not constant

Method used

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  • Internal gear machine
  • Internal gear machine

Examples

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Embodiment Construction

[0014] in figure 1 The internal gear machine shown in has a housing, and an annular middle part 1 of the housing can be seen. The middle part 1 encloses a pump chamber 2 which is closed by two unshown side parts of the housing. In the two side parts, a drive shaft 3 is rotatably supported. On the drive shaft 3, an externally toothed pinion 4 is arranged in the pump chamber 2 in a non-rotatable manner. The gear axis 5 and the longitudinal axis of the drive shaft 3 fall together.

[0015] The ring gear of the pinion 4 has twelve teeth. The pinion gear is surrounded by a hollow gear 6 provided with eighteen internal teeth, the gear axis 7 of which extends parallel to and eccentric to the gear axis 5 of the pinion gear. A central plane 8 extends through the gear axes 5 and 7.

[0016] The ring gear 6 is rotatably supported in the corresponding circular pump chamber 2 of the middle part with its radially surrounding cylindrical shell surface. In the regions on both sides of the cent...

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PUM

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Abstract

The internally-geared machine has a housing, an externally toothed pinion (4), which is rotatable around a gear axis (5), and an internally toothed ring gear (6). A compensation chamber (24) sealed against a working chamber is formed between a segment carrier (16) and a sealing segment (17). A high-pressure region is connected with a low pressure region (S) via a compensation channel (25) by using hydraulic compensating current flows, from which a cross-flow is branched off. The compensation chamber is conducted and applied with the pressure compensation.

Description

Technical field [0001] The invention relates to an internal gear machine, especially an internal gear pump, which has a housing; a pinion with external teeth rotatable about a first gear axis; and a pinion gear with external teeth rotatable about a second gear axis. A hollow wheel with internal teeth meshed with a pinion, the hollow wheel and the pinion enclose a crescent-shaped working area; there is an approximately semi-crescent shape arranged between the pinion and the hollow wheel The filling piece in the working area, the pointed end of the filling piece is located on the first side of a central plane stretched by the two gear axes, and the crescent-shaped working area is divided into a low pressure interface A low-pressure zone and a high-pressure zone connected to a high-pressure interface, wherein the filling piece is constructed in two pieces and consists of a segment bracket pressed onto the ring gear of the pinion with its inner side and a sticker A sealed sector le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/101F04C2/086F04C15/0019F04C2270/165F04C2270/52F04C2270/585
Inventor M.翁格尔
Owner ROBERT BOSCH GMBH
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