Combustion mixture generator for internal combustion engines

US4434772A · kind A · utility

Assignee

• Bosch & Pierburg System oHG · DE

Inventors

• Gunter Hartel · Neuss, DE
• Werner Schiele · Ludwigsburg, DE
• Armin Schurfeld · Meerbusch, DE
• Valerio Bianchi · Biberach an der Riß, DE
• Anwar Abidin · Leonberg, DE

Key dates

• Filing date: Jul 8, 1983
• Grant date: Mar 6, 1984
• Expiry date: Jul 8, 2003

Classification

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

Abstract

A carburettor or other combustible mixture generator 1 has a mixture chamber 3 surrounded by a tubular wall 2 which has an inner skin 9 and an outer skin 10 with an annular heating chamber 11 between them. Heating fluid such as exhaust gas or heated engine cooling water flows through the chamber 11 from an inlet 12 to an outlet 13 and so heats the inner skin 9. A fuel metering device 6, 7 directs the fuel on to the surface of the heated skin 9 and thus causes the fuel to be evaporated within the mixing chamber 3 upstream of a throttle 4. This greatly improves the uniformity of the mixture and the uniformity of its distribution through an inlet downstream of the throttle 4.