Procedure and apparatus for degassing fuel supply pump

US4231719A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Peter Ringwald · Rutesheim, DE
• Klaus Rose · Mundelsheim, DE
• Karl Ruhl · Gerlingen, DE

Key dates

• Filing date: Jun 16, 1978
• Grant date: Nov 4, 1980
• Expiry date: Jun 16, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/0606
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A procedure and an apparatus are proposed for effectively degassing fuel supply pumps, where the fuel used contains components which vaporize easily at elevated fuel temperatures, and particularly for leading off gas bubbles as they are formed whenever these occur or form in the immediate area of the pump intake. The entire pump and especially the intake area of the pump, which is preferably a roller piston pump, are embodied in open design, with the fuel supply pump arranged perpendicularly and the pumping area located at the bottom, so that gas bubbles forming in the fuel can be carried off before they are introduced into the pump. The pump comprises a base plate with a telescoping rigid tubular member and an intermediate plate screwed onto the base plate, the intermediate plate having an eccentric boring, which encloses the groove disc of the thus-embodied roller piston pump. Further attached to this intermediate plate is a front cover which secures the entire pump area with respect to a housing surrounding the electromotor and has its interior contour so formed that the front cover can assume the functions of the pump. The base plate and the front cover which secure the pump ar…