Patent · US Expired

Liquid heating system

US4420114A · kind A · utility

10Cited by

4References

21Claims

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	Apr 1, 1981
Grant date	Dec 13, 1983
Priority date	—
Expiry date	Apr 1, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG05D23/1919
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A liquid heating system includes a high-pressure hydraulic pump for suctioning the liquid from the liquid reservoir and delivering it thereto through a liquid conduit into which the pump is coupled. A drive is provided for the pump, and a pressure-reducing element is coupled into the conduit downstream of the pump for reducing the pressure and elevating the temperature of the liquid. The element has a fixed flow passage, and a heat exchanger is coupled into the conduit downstream thereof. An arrangement for controlling the discharge rate of flow produced by the pump is provided as a function of the calorific heat required to be generated by the system and/or of the temperature of the liquid.

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