초록 ▼

A fuel control system for delivering gaseous fuel from a source to a gas-operated engine that includes a normally open electronic control valve connected between the fuel source and the engine, and responsive to electronic valve control signals for variably closing connection between the source and

A fuel control system for delivering gaseous fuel from a source to a gas-operated engine that includes a normally open electronic control valve connected between the fuel source and the engine, and responsive to electronic valve control signals for variably closing connection between the source and the engine. An electronic control unit supplies the electronic valve control signals responsive to engine operation. The electronic control unit includes facility for responding to termination of engine operation by automatically generating a valve control signal to hold the valve fully closed for a preselected time duration. This preselected time duration preferably includes a fixed minimum time duration and a user-programmable additional valve closure time duration.

대표청구항 ▼

[What is claimed is:] [1.]a normally open electronic control valve for connection between the source and the engine, said valve being responsive to electronic valve control signals for variably closing connection between the source and the engine, andan electronic control unit for supplying said ele

[What is claimed is:] [1.]a normally open electronic control valve for connection between the source and the engine, said valve being responsive to electronic valve control signals for variably closing connection between the source and the engine, andan electronic control unit for supplying said electronic control signals responsive to engine operation,said electronic control unit including means for responding to termination of operation at the engine by automatically generating a control signal to hold said valve fully closed for a preselected time duration.