Title: Pressure regulating valve for fuel injection systems

Abstract: There is proposed a pressure regulating valve for a fuel injection system which serves to regulate the heating-up fuel amount for an explosion, external auto-ignition, internal combustion engine. The pressure regulating valve comprises a movable valve component which is urged in the closing direction by a pressure spring which during the heating-up phase acts against a temperature responsive element which in turn acts with a force that can be influenced by another temperature responsive electrically heatable element so that during the heating-up phase the air-fuel mixture can be proportioned in accordance with the requirements of each internal combustion engine.

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Inventors: Schlott, Walter (Rommelshausen, DE, US)

Application Number: 798522
Filing Date: 1977-05-19
Publication_date: 1979-02-27
Assignee: Robert Bosch GmbH (Stuttgart, DE)
Primary Class(es): 123/453 261/39.6, 261/50.2
Other Classes:
US Patent Ref:

3777727	Dec, 1973	Kitchner et al.	123/139.
3835828	Sep, 1974	Knapp	123/139.
3963005	Jun, 1976	Eckert	123/139.
3993034	Nov, 1976	Passera et al.	123/139.
4038955	Aug, 1977	Paulmier	123/119.

Other Refs:
Primary Examiner: Myhre, Charles J.
Assistant Examiner: Lall, P. S.
Attorney: Greigg; Edwin E.