Internal gear-wheel pump comprising reinforced channels

a gear wheel and channel technology, applied in the direction of pump components, positive displacement liquid engines, rotary piston liquid engines, etc., can solve the problems of affecting the stability of the housing, high cost of known fuel pumps, etc., and achieve the effect of low strength and particularly cost-effective production

Inactive Publication Date: 2006-07-13
CONTINENTAL AUTOMOTIVE GMBH
View PDF17 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] The fuel pump according to the invention can be produced particularly cost-effectively if at least one of the housing parts is produced from plastic. The low strength of the plastic housing parts in comparison to the ceramic plates of the known fuel pump is compensated for by the ribs in the ducts.

Problems solved by technology

A disadvantage of the known fuel pump is that the elongated inlet and outlet ducts adversely affect the stability of the housing.
The known fuel pump is very costly as a result.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Internal gear-wheel pump comprising reinforced channels
  • Internal gear-wheel pump comprising reinforced channels
  • Internal gear-wheel pump comprising reinforced channels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014]FIG. 1 shows a section illustration through a feed unit for feeding diesel fuel from a fuel tank (not illustrated) of a motor vehicle to an internal combustion engine having a fuel pump 2 which is driven by an electric motor 1. The fuel pump 2 has an inner rotor 4 which is connected to a shaft 3 of the electric motor 1 and forms a rotor pair 6 with an outer rotor 5. The outer rotor 5 is mounted radially in an annular element 7 and axially between two housing parts 8, 9 of a housing 10. A coupling 11 is arranged on the shaft 3 of the electric motor 1 and is connected in a rotationally fixed manner to the inner rotor 4. In addition, the shaft 3 has a radial bearing with a bush 12 in that housing part 8 of the fuel pump 2 which faces away from the electric motor 1. A pump cover 13 has an intake pipe 14. On its end facing away from the fuel pump 2, the feed unit has a connecting pipe 15 for a fuel line which leads to the internal combustion engine. As a result, the supplied fuel f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a gerotor fuel pump (2) comprising ribs (18, 19), which are located in channels (16, 17) that are configured as inlets and outlets and that are situated in housing parts (8, 9). The ribs (18, 19) are positioned transversely to the maximal extension of the cross-sections of the channels (16, 17), producing a high degree of stability in the channels (16, 17). The housing parts (8, 9) are composed of plastic.

Description

BACKGROUND OF THE INVENTION [0001] The invention relates to a gerotor fuel pump for feeding fuel from a fuel tank of a motor vehicle having a housing, having a rotor pair mounted between two housing parts, and having elongated inlet and outlet ducts arranged in the housing. [0002] Fuel pumps of this type are often used in particular to feed diesel fuel in modern-day motor vehicles, and are known from practice. The rotor pair of the gerotor fuel pump has an inner rotor with external toothing and an outer rotor with internal toothing. Here, the external toothing usually has one tooth more than the internal toothing. The rotational centre of the inner rotor is offset with respect to the rotational centre of the outer rotor. The inlet and outlet ducts are usually arranged in opposing housing parts. As a result, flow passes axially through the fuel pump. [0003] A disadvantage of the known fuel pump is that the elongated inlet and outlet ducts adversely affect the stability of the housing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): F04B17/00F04C2/10
CPCF04C2/102F04C2250/10F05C2225/00F04C2/00F04C2/10
Inventor BARTH, HOLGER
Owner CONTINENTAL AUTOMOTIVE GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap