Patent · US Expired

System for heating the operators cabin of a machine powered by an internal combustion engine

US4434934A · kind A · utility

31Cited by

2References

12Claims

0Family size

Assignee

Klockner-Humboldt-Deutz AG · DE

Inventors

Gottfried Moser · Wittlich, DE
Walter Nau · Cologne, DE
Ernst D. Neumann · Aachen, DE

Key dates

Filing date	Jun 11, 1982
Grant date	Mar 6, 1984
Priority date	—
Expiry date	Jun 11, 2002

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF24V40/10
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A system for heating the operator's cabin of a machine powered by an internal combustion engine includes a primary oil conduit system wholly contained within the oil pan of the machine and having a high-pressure pump for feeding oil under heat and high pressure from the oil reservoir and back thereinto through a throttling element for heating the oil as it passes therethrough. A secondary oil conduit system operating under a pressure less than that of the primary system has an intermediate heat exchanger in heat exchange relationship with the oil heated by the first system, and has a heating heat exchanger located in the operator's cabin for supplying heat thereto. The secondary circuit contains liquid which is circulated by a circulating pump.

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