초록 ▼

The present invention provides a combustion-powered actuator that is suitable for intermittent actuation, that is suitable for use with atmospheric pressure carburetion, and that requires little electrical energy input. The present invention uses energy from expansion of pressurized fuel to effectiv

The present invention provides a combustion-powered actuator that is suitable for intermittent actuation, that is suitable for use with atmospheric pressure carburetion, and that requires little electrical energy input. The present invention uses energy from expansion of pressurized fuel to effectively purge a combustion chamber, and to achieve atmospheric pressure carburetion. Each purge-fill-power cycle can be independent, allowing the actuator to readily tolerate misfires. The present invention is suitable for use with linear and rotary operation combustion chambers, and is suitable for use in a wide variety of applications.

대표청구항 ▼

[ We claim:] [1.]1. A combustion-powered linear actuator, comprising:a) a body having a body chamber therein;b) a power piston movably mounted within the body chamber and defining a combustion chamber;c) an exhaust port in fluid communication with the combustion chamber;d) a fuel system adapted for

[ We claim:] [1.]1. A combustion-powered linear actuator, comprising:a) a body having a body chamber therein;b) a power piston movably mounted within the body chamber and defining a combustion chamber;c) an exhaust port in fluid communication with the combustion chamber;d) a fuel system adapted for storage of a combustible fuel;e) a carburetion system in fluid communication with the fuel system and with the combustion chamber, adapted to purge the combustion chamber and to deliver combustible fuel to the combustion chamber in a state suitable for combustion, comprising:i) a purge piston movably mounted within the body chamber;ii) a purge energy source that urges the purge piston toward the exhaust port, comprising pressure of fuel in the fuel system;iii) a charge energy source that urges the purge piston away from the exhaust port;iv) a fuel controller that allows fuel into the combustion chamber when the purge piston is moving away from the exhaust port but not when the purge piston is moving toward the exhaust port;v) an ignition system mounted with the body adapted to initiate combustion within the combustion chamber.