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:
Jul. 19, 1983
Filed:
Oct. 13, 1981
Brian W Tumber, Greenford, GB;
Lucas Industries Limited, Birmingham, GB;
Abstract
A liquid fuel injection pumping apparatus of the axially slidable rotor type includes a low pressure supply pump which supplies fuel to an injection pump including pumping plungers mounted in a rotary distributor member. A surface of the distributor member is located within a chamber to which a control pressure can be supplied by way of a control valve from the outlet of the low pressure pump. The distributor member is moved by increasing control pressure against a spring to reduce the amount of fuel supplied by the injection pump. A valve is provided which is responsive to the pressure drop across the control valve, the valve acting to prevent flow of fuel to the injection pump in the event that the pressure drop across the control valve falls below a predetermined value.