Method and system for improved fuel system performance of a gase

Details Method and system for improved fuel system performance of a gase Method and system for improved fuel system performance of a gase

1993-04-15

1994-11-29

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Fuel injection system

123527, F02M 5500, F02M 2104

Patent

active

053679997

ABSTRACT:
An improved gaseous fuel delivery system and method (10) to improve performance of a gaseous fuel engine (30) by variably maintaining gaseous fuel pressure to the gaseous fuel engine (30). From a storage device (12), gaseous fuel flows to fuel pressure regulator (16) that variably and dynamically reduces the fuel pressure from the storage pressure and maintains the gaseous fuel pressure at the desired controlled supply pressure. Regulator controller (20) controls the fuel pressure regulator (16) in response to signal inputs (28, 34, 44, and 54) and maintain the gaseous fuel at the controlled supply pressure. Signal inputs (28, 34, 44, and 54) used by regulator controller (20) are derived from sensors such as fuel pressure sensor (24) an engine speed and/or intake manifold pressure sensor (34), fuel temperature sensor (42), and fuel composition sensor (52). The result is substantially improved fuel system dynamic range and the ability to control gaseous fuel supply to the gaseous fuel engine to provide improved fuel metering accuracy and improved engine performance and emissions.

REFERENCES:
patent: 4141326 (1979-02-01), Wolber
patent: 4364364 (1982-12-01), Subramaiam
patent: 4606322 (1986-08-01), Reid et al.
patent: 5105791 (1992-04-01), Nye, Jr.
patent: 5117798 (1992-06-01), Nozaki
patent: 5150685 (1992-09-01), Porter et al.
patent: 5183011 (1993-02-01), Fujii et al.

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