The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 1986
Filed:
Feb. 22, 1985
Josef Hain, Leonberg, DE;
Karl-Friedrich Russeler, Ditzingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a fuel injection pump for an internal combustion chamber a device for an 'early' adjustment of a fuel injection onset includes a check valve for controlling the fuel injection onset, for example in case of a cold start or low atmospheric temperatures. An unloading bypass conduit with an adjustable flow valve is connected to the check valve in parallel so that the adjustment makes possible the control of the beginning of the characteristic line of the pump relative to the characteristic line of the internal combustion engine. The device includes a pressure control valve which has an outlet opening controlled by a control piston. The cross-section of the outlet opening defines the adjustment of the characteristic line of the pump to the characteristic line of the engine.