Patent · US Expired

Feed pump

US6152687A · kind A · utility

19Cited by

5References

7Claims

0Family size

Assignee

Mannesmann VDO AG · DE

Inventors

Dieter Wilhelm · Neu-Anspach, DE
Egbert Lorenz · Gerstungen, DE
Peter Schuchardt · Stillwater, US
Matthias Staab · Bad Hersfeld, DE
Thomas Werner · Portland, US

Key dates

Filing date	Jun 11, 1999
Grant date	Nov 28, 2000
Priority date	—
Expiry date	Jun 11, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D5/002
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a feed pump designed for feeding fuel in a motor vehicle and having two feed chambers (11, 12) located opposite one another, of which one is connected to an inlet port (18) and the other to an outlet port (19), the feed chamber (11) connected to the inlet port (18) has a calming region (21) which a compression region (22) adjoins. Fuel entering the feed pump is thereby first calmed. Subsequently, in particular, gas bubbles present in hot fuel are dissolved due to the vapour pressure in the fuel being exceeded.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.