Patent · US Expired

Fuel metering system

US4108117A · kind A · utility

9Cited by

7References

23Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerhard Stumpp · Stuttgart, DE
Wolf Wessel · Oberriexingen, DE
Volkhard Stein · Stuttgart, DE
Wolfgang Ripper · Stuttgart, DE

Key dates

Filing date	Nov 15, 1976
Grant date	Aug 22, 1978
Priority date	—
Expiry date	Nov 15, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/28
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel metering system for an internal combustion engine has an arbitrarily settable throttle plate which controls the air flow through the induction tube and an air flow responsive valve element, shaped somewhat like a cylindrical sector, which is pivoted inside the induction tube upstream of the throttle plate. The pivoting valve element has a shaft which is surrounded by a bushing. An opening in the bushing is uncovered to varying extent by a control edge on the pivotal shaft so as to meter out fuel in proportion to the angular excursion of the pivoting valve element. The fuel is delivered to the induction tube directly downstream of the pivoting valve element.

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