Heater plug for diesel engines

US4359977A · kind A · utility

Assignee

• W. C. Heraeus GmbH · DE

Inventors

• Franz Sperner
• Fritz Aldinger · Rodenbach, DE
• Wilhelm Zwergel · Alzenau, DE

Key dates

• Filing date: Jan 2, 1981
• Grant date: Nov 23, 1982
• Expiry date: Jan 2, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B3/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A heater plug comprising a heater coil connected to a terminal pin, said terminal pin maintained in gas-tight manner at least in part within and insulated from a plug shell, at least the surface of said heater coil formed by a metal or a base alloy of a metal of the platinum group said heater coil supported by heat electrically insulating rod-like or tubular supporting body heater coil surrounded by a protective tube. The heater plug is useful as a starting aid for diesel engines and other internal combustion engines, especially those without spark ignitions.