Patent · US Expired

Liquid-cooled heat generator for a vehicle heating system

US4484049A · kind A · utility

11Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Peter Ahner · Eppelheim, DE
Helmut Harer · Waiblingen, DE
Siegfred Schustek · Markdorf, DE

Key dates

Filing date	Jun 16, 1982
Grant date	Nov 20, 1984
Priority date	—
Expiry date	Jun 16, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/108
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An additional claw-pole rotor similar to that of the alternator of a motor vehicle and excited by a similar winding is mounted on the same shaft as the rotor of the alternator and is surrounded by a stator core carrying, instead of winding, a short circuiting ring at each end and having tubular armature rods built into the stator core which run from one short circuiting ring to the other. The short circuiting rings provide channels for a heat transfer liquid that communicate with the inside of the tubular rods so that induction currents in the armature rods will heat the heat transfer liquid that is circulated through the heater of the car. An additional slip ring is necessary for the exciter current of the heat generator which may be varied or regulated to control the amount of heat generated.

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