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:
May. 27, 1986
Filed:
Jan. 23, 1985
Wilfried Baatz, Bellevue, WA (US);
FloScan Instrument Co., Inc., Seattle, WA (US);
Abstract
An apparatus and method are disclosed for reducing flow pulsations and measuring fuel flow in a fuel system for a liquid fuel engine. The engine (54) has associated with it a fuel tank (30) and a pump (32) for causing fuel to flow through a fuel flow path from the fuel tank through the pump to the engine. In one embodiment, the invention comprises a flow sensor (50), gas inlet means (62), and a pulsation damper (46) that includes a chamber (70) in communication with the fuel flowing through the pulsation damper. The flow sensor is positioned in the fuel flow path (44, 48, 52) between the pump and the engine, and serves to measure the rate of fuel flowing to the engine. The gas inlet means introduces gas into the fuel flow path, and preferably directly into the chamber. The pulsation damper is located in the fuel flow path (44, 48) between the pump and the flow sensor, and operates to damp flow pulsations in the fuel and separate the gas introduced by the gas inlet means from the fuel such that the gas does not reach the engine.