Patent · US Expired

Drive unit for a compressor of a heat pump

US4338524A · kind A · utility

2Cited by

9References

7Claims

0Family size

Assignee

MOTORENFABRIK HATZ GMBH & CO. KG

Inventors

Ernst Hatz · Ruhstorf, DE
Heinz Eibl · Ruhstorf, DE

Key dates

Filing date	Mar 29, 1979
Grant date	Jul 6, 1982
Priority date	—
Expiry date	Mar 29, 1999

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02N11/14
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A drive unit for a compressor which is used in a heat pump. The drive unit includes a fuel-injection internal combustion engine which is coupled with the compressor and a starter associated with said engine and is fed from multiphase electric power supply lines. The starter is connected to the electric power supply by means of a switch. The starter is constructed as an electromagnetic drive motor having a stator and a rotor secured to the engine crankshaft and serving at least partly as a flywheel. The coil windings on the stator are fed current from the power source.

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