Reservoir-type fuel injection system

US5078113A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gottlob Haag · Markgröningen, DE
• Helmut Rembold · Stuttgart, DE
• Walter Teegen · Waiblingen, DE

Key dates

• Filing date: Dec 1, 1989
• Grant date: Jan 7, 1992
• Expiry date: Dec 1, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A reservoir fuel injection system, in which fuel is deliverable under pressure to a reservoir having a line carrying fuel under pressure from the reservoir via a valve assembly to at least one injection nozzle and having an adjustable throttle for varying the quantity of fuel supplied to the reservoir, is embodied such that the throttle upon attainment of the maximum pressure in the reservoir and/or the maximum reservoir volume, enables the aspiration of a minimum quantity of fuel in an intake line of the charge pump and/or connects the pressure line at least partly with the intake line; and/or the pressure reservoir, upon attainment of the maximum pressure in the reservoir and/or the maximum reservoir volume, opens an outflow cross section.