Abstract: A steam engine of the rotary type including a housing with two annular chambers with each chamber having a piston assembly operable therein. The piston assemblies are carried by a common shaft and displaced 90 degrees apart. Each piston assembly includes two pistons. The pistons have their working end surfaces 180 degrees of rotation apart. The rotor shaft is hollow along a portion of its length. The hollow portion of the shaft delivers fluid under pressure from an external source through channels within the pistons to fluid troughs in the circumferential surfaces of the annular chambers. Additional channels in the annular chambers and housing provide fluid under pressure to actuate shuttle valves at specific rotation locations of the pistons in each chamber. Each chamber includes side wall vents for exhausting spent working fluid. A screen is positioned vertically between the adjacent vents to cause condensate to be directed to a collection sump by gravity.

Abstract: A rotary piston type fluid machine comprises one or more rotary piston type fluid machine units, each comprising a doughnut type ring-shaped cylinder with an annular slit being provided in the wall at the inward periphery lying in a plane containing the annular central line of the cylinder, a rotor rotatively supported by the cylinder with the peripheral portion being shiftably received within the slit, one or more rotary pistons secured to the peripheral surface of the rotor and adapted to be shifted within the cylinder, and one or more gate valves mounted to the cylinder so as to cross the cylinder and adapted to periodically protrude into the cylinder in synchronization with the movement of the rotary pistons. The rotary piston type fluid machine unit can be utilized as a compressor, an internal combustion engine, a pump, etc. by using it singly, or as a number of the units in combination.

Abstract: The cooling system includes a cyclically operating cooling-medium compressor driven by the vehicle engine. At low to medium engine speeds, corresponding to speeds from idling to city-driving speeds, the cooling system develops a cooling power sufficient to satisfactorily cool the interior of the passenger compartment. At higher engine speeds, corresponding to highway travel, the cooling power developed by the cooling system is automatically decreased by automatically decreasing the per-cycle volumetric throughput of the cooling-medium compressor. The automatic decrease is effected in automatic response to the reaching of a certain engine rpm or a certain condensation pressure in the condenser of the cooling system. In the illustrated embodiment, the compressor is a sliding-vane compressor, and the per-rotation volumetric throughput thereof is decreased by arresting certain ones of the vanes in the retracted position.

Abstract: The cooling system includes a cyclically operating cooling-medium compressor driven by the vehicle engine. At low to medium engine speeds, corresponding to speeds from idling to city-driving speeds, the cooling system develops a cooling power sufficient to satisfactorily cool the interior of the passenger compartment. At higher engine speeds, corresponding to highway travel, the cooling power developed by the cooling system is automatically decreased by automatically decreasing the per-cycle volumetric throughput of the cooling-medium compressor. The automatic decrease is effected in automatic response to the reaching of a certain engine rpm or a certain condensation pressure in the condenser of the cooling system. In the illustrated embodiment, the compressor is a sliding-vane compressor, and the perrotation volumetric throughput thereof is decreased by arresting certain ones of the vanes in the retracted position.