Expansible chamber device
OwnerOrin J. Olsgaardinventor
Life of this patent
Estimating the term…
Abstract
An internal combustion engine, a fluid motor or a pump includes a cylinder block enclosing an elongated cylindrical bore. A double headed piston is slidably mounted within the bore. The piston and cylinder block are rotatable relative to each other about the longitudinal axis of the bore. Rotation is imparted by a sinusoidal cam and a cam follower. Reciprocation of the piston within the bore is accomplished along with corresponding rotational movement of the cylinder block. Opposed ends of the cylinder block include openings which are aligned with and periodically communicate with exhaust and intake chambers. Porting collars are slidably mounted to the cylinder block and are stationary relative to the cylinder.
Claims19
An expansible chamber device, comprising:
- a stationary base;
- a cylinder block;
- an elongated enclosed bore formed within the cylinder block along a central axis;
- means mounting said block to said base for rotation of the block relative to the base about said axis;
- a piston slidably received within the bore for coaxial reciprocating motion therein, along said axis forming expansible chambers within the bore at opposite ends thereof;
- rod means interconnecting said piston and base for preventing rotational movement of the piston about the axis relative to the base;
- motion transmitting means connecting the cylinder block and piston for directly relating rotational movement of the cylinder block about the axis and reciprocal movement of the piston along said axis through a defined stroke;
- intake means associated with said cylinder block operative in response to rotation of the cylinder block relative to the base for sequentially admitting a fluid into an expansible chamber within the bore;
- and
- exhaust means associated with said cylinder block operative in response to rotation of the cylinder block relative to the base for sequentially directing a fluid out of an expansible chamber within the bore.
An expansible chamber device, comprising:
- a stationary base;
- a cylinder block;
- an elongated enclosed cylindrical bore formed through the cylinder block along a central axis;
- means mounting said block to said bore for rotation of the block relative to the base about said axis;
- a piston slidably received within the bore for axial reciprocating motion therein along said axis, forming expansible chambers at opposite bore ends;
- rod means slidably mounting the piston to the base for guiding the piston axially in the cylinder block and for preventing rotation of the piston about said axis relative to the base;
- motion transmitting means connecting the cylinder block and piston for directly relating rotational movement of the cylinder block about the axis and reciprocal movement of the piston along the axis;
- ports formed through the cylinder block, one at each end thereof to communicate openly with the expansible chambers and moveable with the cylinder block in a circular path about the axis;
- porting means slidably mounted to the cylinder block at both ends thereof and stationary relative to the base for open cyclic communication with adjacent expansible chambers through the ports;
- the porting means including intake and exhaust chambers each extending about the axis in an arc including approximately 180.degree. in the path of the ports;
- the ports, porting means, and motion transmitting means being arranged such that (a) as the piston moves in one stroke in a first axial direction fluid is allowed to enter one expansible chamber and simultaneously exit from the other expansible chamber, and (b) as the piston moves in a second stroke in an opposite axial direction fluid is allowed to exit from the one expansible chamber and simultaneously enter into the other expansible chamber.
Dependencies are inferred from the claim text.