Patent ID: 6415749
Filing Date: 2002-07-09
Classification: F01B,F01L,F02B,Y02T

Abstract:
A power module, comprising:an air compressor cell defining a variable-volume air compressor chamber, an air supply port, and an air exit port, said air supply port and air exit port each arranged in fluid communication with the air compressor chamber, said air supply port adapted to communicate with a source of supply air; an electronically-controllable magnetically-latchable air supply valve associated with the air supply port and selectively operable to move between i) a closed position at which the air supply valve closes the air supply port and thereby closes fluid communication between the source of supply air and the air compressor chamber via the air supply port and ii) an opened position at which the air supply valve opens the air supply port and thereby opens fluid communication between the source of supply air and the air compressor chamber via the air supply port; an air pump piston positioned in the air compressor chamber and operable to move between i) an expansion position at which the air compressor chamber reaches its maximum volume and ii) a contraction position at which the air compressor chamber reaches its minimum volume; a combustion cell defining a variable-volume combustion chamber separate from the air compressor chamber, an air intake port, and an exhaust port, said air intake port and exhaust port each arranged in fluid communication with the combustion chamber; an air storage chamber arranged in fluid communication between the air exit port of the air compressor cell and the air intake port of the combustion cell; an intake valve associated with the air intake port of the combustion cell and selectively operable to move between I) a closed position at which the intake valve closes the air intake port and thereby closes fluid communication between the air storage chamber and the combustion chamber via the air intake port and ii) an opened position at which the intake valve opens the air intake port and thereby opens fluid communication between the air storage chamber and the combustion chamber via the air intake port; an exhaust valve associated with the exhaust port of the combustion cell and selectively operable to move between i) a closed position at which the exhaust valve closes the exhaust port and thereby closes fluid communication between the combustion chamber and the exhaust port and ii) an opened position at which the exhaust valve opens the exhaust port and thereby opens fluid communication between the combustion chamber and the exhaust port; and a power piston positioned in the combustion chamber and operable to move therein between i) an expansion position at which the combustion chamber reaches its maximum volume and ii) a contraction position at which the combustion chamber reaches its minimum volume.