Method and system for improved fuel system performance of a gaseous fuel engine
Patent 5367999 Issued on November 29, 1994. Estimated Expiration Date: 
April 15, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 15, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesClosed loop control system for hydrogen fuelled engine Air-fuel ratio controller Dual fuel control and supply system for internal combustion engines Current to pressure/vacuum transducer 5117798 Apparatus and method for converting conventionally fueled engines to operate on an alternative fuel Method of controlling the supply of fuel in hydrogen-fueled engine Patent #: 5183011 InventorsAssigneeApplicationNo. 048839 filed on 04/15/1993US Classes:123/458, Electric regulator123/527Gaseous fuel and air mixerExaminersPrimary: Cross, E. RollinsAssistant: Solis, Erick Attorney, Agent or FirmForeign Patent References
International ClassesF02M 055/00F02M 021/04 AbstractAn 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. | |
