Patent · US Expired

Fuel injection installation for a multi-cylinder aircraft engine

US4485788A · kind A · utility

5Cited by

6References

7Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

August Hofbauer · Pforzheim, DE
Herbert Steinbeck · Hamburg, DE
Hans Weiner

Key dates

Filing date	Oct 12, 1983
Grant date	Dec 4, 1984
Priority date	—
Expiry date	Oct 12, 2003

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M69/22
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection system for a multi-cylinder aircraft engine in which, in order to secure the fuel supply, a pressure-measuring device is connected to the feed line leading from the fuel tank to the fuel quantity distributor, into which are installed two parallel fuel pumps and a fuel filter; this pressure-measuring device in case of a predetermined pressure drop switches on the fuel pump which previously was not in operation; in case of an excessive pressure difference at the fuel filter which is measured by pressure-measuring device upstream and downstream of the filter, an electromagnetic valve installed into a bypass line to the fuel filter is opened; the soiling degree of the fuel filter is indicated by a hydraulically actuated difference pressure-measuring device with pressure limitation.

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