Patent · US Expired

Preliminary heating control installation for air-compressing internal combustion engines

US4235215A · kind A · utility

3Cited by

2References

16Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Manfred Stotz · Esslingen am Neckar, DE
Gerhard Komander · Altbach, DE
Wolfgang Hilpert · Kirkland, US

Key dates

Filing date	Oct 27, 1978
Grant date	Nov 25, 1980
Priority date	—
Expiry date	Oct 27, 1998

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02P19/023
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A preliminary heating control installation for air-compressing internal combustion engines, especially in motor vehicles, with a device for the control of the preliminary heating time as a function of engine temperature and of a time limit, with a relay whose energizing winding is connected in the heating circuit and whose contact controls an indicating lamp, and with an additional circuit that detects the failure of at least one or several heater plugs and renders this defect visible by engagement of the indicating lamp during the duration of the starting operation or therebeyond.

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