Patent ID: 7634979
Filing Date: 2009-12-22
Classification: F02B

Abstract:
1. A combustion-powered motor/compressor, comprising: a first housing; a combustion chamber defined within said first housing; means for charging an air/fuel mixture into said combustion chamber; ignition means disposed within said combustion chamber so as to initiate combustion of said air/fuel mixture within said combustion chamber; a power piston movably disposed within said combustion chamber so as to undergo a power stroke, as a result of said combustion of said air/fuel mixture within said combustion chamber, from a START position to an END position, and a return stroke from said END position back to said START position; an exhaust valve fluidically connected to said combustion chamber; means for moving said exhaust valve to an OPEN position during said return stroke of said power piston so as permit scavenging of exhaust combustion products out from said combustion chamber during said return stroke of said power piston, and for causing said exhaust valve to be moved to a CLOSED position when said power piston has returned to said START position so as to close said combustion chamber and thereby house a fresh air/fuel mixture within said combustion chamber for subsequent ignition and a new power stroke of said power piston; a second housing connected to said first housing by means of a first end wall; and a scavenging piston operatively connected to said power piston so as to form a piston assembly therewith and which is movably disposed within said second housing so as to effectively divide said second housing into a compression chamber, from which working air is adapted to be discharged by said scavenging piston during said power stroke of said power piston, and a scavenging chamber, fluidically connected to said combustion chamber, from which fresh scavenging air is adapted to be forcefully discharged, by said scavenging piston, into said combustion chamber during said return stroke of said power piston.