Systems and methods for a partial state condenser are described. In one embodiment, the partial state condenser receives a working fluid, and includes a sense reservoir that holds the working fluid, a reservoir sensor that senses an electrical property of the working fluid, and a reservoir valve that is in fluid communication with the sense reservoir. The partial state condenser yet further includes a processor configured to execute instructions to determine a specific energy of the working fluid based on the electrical property of the working fluid. The processor is also configured to execute instructions to control the reservoir valve to regulate a flow of a portion of the working fluid from the sense reservoir based on the specific energy of the working fluid to maintain a two-phase saturation state associated with a saturation point within the partial state condenser based on the electrical property.

Systems and methods for a partial state condenser are described. In one embodiment, the partial state condenser receives a working fluid, and includes a sense reservoir that holds the working fluid, a reservoir sensor that senses an electrical property of the working fluid, and a reservoir valve that is in fluid communication with the sense reservoir. The partial state condenser yet further includes a processor configured to execute instructions to determine a specific energy of the working fluid based on the electrical property of the working fluid. The processor is also configured to execute instructions to control the reservoir valve to regulate a flow of a portion of the working fluid from the sense reservoir based on the specific energy of the working fluid to maintain a two-phase saturation state associated with a saturation point within the partial state condenser based on the electrical property.

A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, and controlling air intake flows communicating between an air source and the primary and secondary inlet ports. During engine start-up, a primary valve is closed to prevent the intake air flow between the primary inlet port and the air source and a secondary valve is opened to allow the intake air flow between the secondary inlet port and the air source. A rotary engine defining different compression ratios through actuation of a valve is also discussed.

A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, and controlling air intake flows communicating between an air source and the primary and secondary inlet ports. During engine start-up, a primary valve is closed to prevent the intake air flow between the primary inlet port and the air source and a secondary valve is opened to allow the intake air flow between the secondary inlet port and the air source. A rotary engine defining different compression ratios through actuation of a valve is also discussed.

A compound engine system includes a rotary engine with rotating chambers, a compressor section in successive communication with the rotating chambers, and a turbine section in successive communication with the rotating chambers. The turbine section has an output shaft. The output shaft and the engine shaft are drivingly engaged to each other and wherein the turbine section has a power output corresponding to from 20% to 35% of a total power output of the compound engine system. A method of compounding power in a compound engine system is also discussed.

A cylinder is installed within a case, and an output shaft and an arm that is integrated thereto and extends in a radial direction are installed within the cylinder. A piston extending in an arc slides and is displaced in a circumferential direction of the cylinder within the cylinder. One end portion of the piston is rotatably connected to the arm. The cylinder is internally provided with a first pressure chamber in which the arm is housed and a second pressure chamber in which the other end portion of the arm is slidably installed. A pressure medium is fed into one of the first and second pressure chambers and discharged from the other, and the output shaft pivots in a rotational direction.

A hydraulic device (1) comprising a housing (2) and a gerotor (3) contained within the housing (2), the gerotor (3) having an inner rotor (4) eccentrically disposed within an outer ring (5), the outer ring having a central axis (19), the outer ring (5) being fixed to the housing, the inner rotor (4) having external lobes (4a) extending radially outwardly engaging the outer ring (5) having internal lobes (5a) extending radially inwardly, the inner rotor (4) being arranged for orbital and rotational movement relative the outer ring (5), wherein the orbital and rotational movement will define a plurality of expanding and contracting volume pressure chambers (7) between the inner rotor (4) and the outer ring (5). The hydraulic device (1) comprises a fluid feeder tube (8) with a central axis (19), the fluid feeder tube (8) is provided with at least one fluid inlet line (8a, 8c) and at least one fluid outlet line (8b, 8d), the inner rotor (4) is adapted to slide against a drive shaft cylinder (10b), the drive shaft cylinder (10b) having a circumference which is eccentrically disposed relative the central axis (19), the inner rotor (4) comprises at least one radial fluid feeder channel (9) disposed radially from the center of and through the inner rotor (4) and out to at least one of the plurality of expanding and contracting volume pressure chambers (7), wherein said fluid inlet line (8a, 8c) and said fluid outlet line (8b, 8d) respectively are radially connectable to said radial fluid feeder channel (9) for fluid communication into and out from said expanding and contracting volume pressure chambers (7).

A hydraulic device (1) comprising a housing (2) and a gerotor (3) contained within the housing (2), the gerotor (3) having an inner rotor (4) eccentrically disposed within an outer ring (5), the outer ring having a central axis (19), the outer ring (5) being fixed to the housing, the inner rotor (4) having external lobes (4a) extending radially outwardly engaging the outer ring (5) having internal lobes (5a) extending radially inwardly, the inner rotor (4) being arranged for orbital and rotational movement relative the outer ring (5), wherein the orbital and rotational movement will define a plurality of expanding and contracting volume pressure chambers (7) between the inner rotor (4) and the outer ring (5). The hydraulic device (1) comprises a fluid feeder tube (8) with a central axis (19), the fluid feeder tube (8) is provided with at least one fluid inlet line (8a, 8c) and at least one fluid outlet line (8b, 8d), the inner rotor (4) is adapted to slide against a drive shaft cylinder (10b), the drive shaft cylinder (10b) having a circumference which is eccentrically disposed relative the central axis (19), the inner rotor (4) comprises at least one radial fluid feeder channel (9) disposed radially from the center of and through the inner rotor (4) and out to at least one of the plurality of expanding and contracting volume pressure chambers (7), wherein said fluid inlet line (8a, 8c) and said fluid outlet line (8b, 8d) respectively are radially connectable to said radial fluid feeder channel (9) for fluid communication into and out from said expanding and contracting volume pressure chambers (7).

A method for expanding a gas flow between an inlet for the supply of the gas flow at certain inlet conditions of inlet pressure and inlet temperature and an outlet for the delivery of expanded gas at certain desired outlet conditions of outlet pressure and outlet temperature, whereby this method at least comprises the step of at least partly expanding the gas flow between the inlet and the outlet through a pressure reducing valve and at least partly expanding it through a pressure reducing unit with a rotor driven by the gas for converting the energy contained in the gas into mechanical energy on this shaft.

A method for expanding a gas flow between an inlet for the supply of the gas flow at certain inlet conditions of inlet pressure and inlet temperature and an outlet for the delivery of expanded gas at certain desired outlet conditions of outlet pressure and outlet temperature, whereby this method at least comprises the step of at least partly expanding the gas flow between the inlet and the outlet through a pressure reducing valve and at least partly expanding it through a pressure reducing unit with a rotor driven by the gas for converting the energy contained in the gas into mechanical energy on this shaft.