Patent ID: 6997145
Filing Date: 2006-02-14
Classification: B25C,F02B

Abstract:
1. A recycling system for linear motors, comprising: a cylinder housing having a reference axis, a first bore, a second bore, and at least one recess each along the reference axis; a piston actuator having a first seal guided within the first bore, a second seal guided within the second bore, and a piston body supporting the first and second seals in positions spaced along the reference axis; a first air chamber within the first bore having a volume bounded by the piston body and the first seal; a second air chamber within the second bore having a volume bounded by the piston body and the first and second seals; a combustion chamber within an interior of the piston body having a volume bounded by the piston body and the second seal; the piston actuator being movable by combustion pressure in a first direction along the reference axis for pumping compressed air from the first air chamber; the piston actuator being movable by the compressed air in a second direction along the reference axis from a lower position at which the second seal contacts the second bore to a higher position providing a fluid communication path between the combustion chamber and the second air chamber; and the at least one recess being formed as a portion of the combustion chamber defining the fluid communication path and allowing compressed air flow from the second air chamber into the combustion chamber at the higher position of the piston actuator, wherein the second seal together with the second bore and the at least one recess forms a control valve that regulates airflow from the second air chamber into the combustion chamber.