Precombustion chamber in the cylinder head of a diesel engine

US4426966A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union · DE

Inventors

• Werner Huther · Karlsfeld, DE
• Wolfgang Kruger

Key dates

• Filing date: Jun 9, 1982
• Grant date: Jan 24, 1984
• Expiry date: Jun 9, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Precombustion chamber construction in a cylinder head of a diesel engine utilizing ceramic material to increase resistance to thermal stresses. A space is provided between the precombustion chamber construction and the cylinder head at least at the main combustion chamber of the diesel engine, and one or more ceramic bodies are shielded from the metal cylinder head and any other metal by thermal insulation to minimize thermal stresses and enable combustion in the precombustion chamber to take place at a higher temperature whereby the power/weight ratio and the efficiency of the engine are improved. The precombustion chamber construction in one embodiment is composed of axially successive parts, and at least the part nearest the main combustion chamber is made of the ceramic material and shielded as indicated.