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:
Jan. 14, 1992
Filed:
Feb. 15, 1990
Derek W Tomsett, Gillingham, GB;
Lucas Industries, , GB;
Abstract
A fuel pumping apparatus of the rotary distributor type includes a main pumping plunger and an auxiliary plunger operable at the same time by a cam. During inward movement fuel is displaced by the pumping plunger to an outlet. The auxiliary plunger displaces fuel to a shuttle bore containing a shuttle and during the initial inward movement a first flow path to drain from the bore containing the pumping plunger is open but this is closed upon further movement of the shuttle until a second flow path is opened. The second flow path includes a groove having an inclined edge so that the angular setting of the shuttle determines the amount of fuel supplied through the outlet. A valve is also provided to allow fuel displaced by the auxiliary plunger to flow to a drain.