Patent ID: 6460493
Filing Date: 2002-10-08
Classification: F02B

Abstract:
An engine, comprising:a housing having an elongated cavity, the elongated cavity having a first end, a second end, and internal walls extending therebetween; a fixed piston located in the cavity and fixedly attached to the housing, the fixed piston having a first end toward the first end of the cavity and a second end toward the second end of the cavity; a slider slidably disposed within the cavity, the slider having a first end toward the first end of the cavity and a second end toward the second end of the cavity, the slider further having a central channel for slidably receiving the fixed piston, the central channel having a first end adjacent the first end of the fixed piston and a second end adjacent the second end of the fixed piston; a first combustion chamber defined by a space between the first end of the channel and the first end of the fixed piston; a second combustion chamber defined by a space between the second end of the channel and the second end of the fixed piston; a first intake port in the housing, the first intake port in fluid communication with a first intake space defined by the space between the first end of the slider and the first end of the cavity when the slider is slidably disposed toward the second end of the cavity; a second intake port in the housing, the second intake port in fluid communication with a second intake space defined by the space between the second end of the slider and the second end of the cavity when the slider is slidably disposed toward the first end of the cavity; a first exhaust port in the housing, the first exhaust port in fluid communication with the first combustion chamber when the slider is slidably disposed toward the first end of the cavity; a second exhaust port in the housing, the second exhaust port in fluid communication with the second combustion chamber when the slider is slidably disposed toward the second end of the cavity; one or more first intake channels for providing a fluid flow path between the first intake space and the first combustion chamber when the slider is moved toward the first end of the cavity; and one or more second intake channels for providing a fluid flow path between the second intake space and the second combustion chamber when the slider is moved toward the second end of the cavity.