A logic valve for management of a hydraulic actuator comprising: a valve body with a hollow seat which extends along a work direction and communicates with a first port adapted for receiving a pressurized working fluid, a second port adapted for fluidly coupling with an operating chamber of the hydraulic actuator, and a third port adapted for discharging the working fluid; a slider within the hollow seat movable along the work direction; and a spring between the valve body and the slider and oriented to act on the slider along the work direction in the direction away from said third port, wherein the slider is movable between a first operating configuration fluidly coupling the second and third ports and excluding fluid communication between them and the first port, and a second operating configuration fluidly coupling the first and second ports and excluding fluid communication between them and the third port.

Systems and methods for a heat engine system are described. In one embodiment, a system comprises a heat engine compressor, a heat exchanger, and a heat engine expander. The system comprises a partial state condenser in fluid communication with the heat engine expander. The partial state condenser includes a sense reservoir to hold the working fluid, a reservoir sensor to sense an electrical property of the working fluid, and a reservoir valve. The reservoir valve is in fluid communication with the sense reservoir, the heat engine compressor, and a heat engine condenser. The system comprises a processor to execute instructions to determine a specific energy of working fluid based on the electrical property of the working fluid and control the reservoir valve based on the specific energy to maintain a two-phase saturated state point within the partial state condenser based on the electrical property.

Systems and methods for a heat engine system are described. In one embodiment, a system comprises a heat engine compressor, a heat exchanger, and a heat engine expander. The system comprises a partial state condenser in fluid communication with the heat engine expander. The partial state condenser includes a sense reservoir to hold the working fluid, a reservoir sensor to sense an electrical property of the working fluid, and a reservoir valve. The reservoir valve is in fluid communication with the sense reservoir, the heat engine compressor, and a heat engine condenser. The system comprises a processor to execute instructions to determine a specific energy of working fluid based on the electrical property of the working fluid and control the reservoir valve based on the specific energy to maintain a two-phase saturated state point within the partial state condenser based on the electrical property.

Systems and methods for a heat engine system are described. In one embodiment, a system comprises a heat engine compressor, a heat exchanger, and a heat engine expander. The system comprises a partial state condenser in fluid communication with the heat engine expander. The partial state condenser includes a sense reservoir to hold the working fluid, a reservoir sensor to sense an electrical property of the working fluid, and a reservoir valve. The reservoir valve is in fluid communication with the sense reservoir, the heat engine compressor, and a heat engine condenser. The system comprises a processor to execute instructions to determine a specific energy of working fluid based on the electrical property of the working fluid and control the reservoir valve based on the specific energy to maintain a two-phase saturated state point within the partial state condenser based on the electrical property.

Systems and methods for a heat engine system are described. In one embodiment, a system comprises a heat engine compressor, a heat exchanger, and a heat engine expander. The system comprises a partial state condenser in fluid communication with the heat engine expander. The partial state condenser includes a sense reservoir to hold the working fluid, a reservoir sensor to sense an electrical property of the working fluid, and a reservoir valve. The reservoir valve is in fluid communication with the sense reservoir, the heat engine compressor, and a heat engine condenser. The system comprises a processor to execute instructions to determine a specific energy of working fluid based on the electrical property of the working fluid and control the reservoir valve based on the specific energy to maintain a two-phase saturated state point within the partial state condenser based on the electrical property.

A micro-auxiliary power unit for supplying electric power to a vehicle includes a thermal resistant enclosure having an intake duct for receiving air, and a source of fuel. A fuel valve is fluidly coupled from the enclosure, and the fuel valve is movable between an opened position and a closed position. The micro-auxiliary power unit includes a Wankel engine to drive an output shaft and a starter-generator coupled to the output shaft to generate electric power. The micro-auxiliary power unit includes a system that has at least one sensor disposed within the enclosure that observes a condition of the enclosure and generates sensor signals, and a controller having a processor that receives the sensor signals, determines the presence of a thermal event within the enclosure and based on the determination, outputs one or more control signals to the fuel valve to move the fuel valve to the closed position.

A micro-auxiliary power unit for supplying electric power to a vehicle includes a thermal resistant enclosure having an intake duct for receiving air, and a source of fuel. A fuel valve is fluidly coupled from the enclosure, and the fuel valve is movable between an opened position and a closed position. The micro-auxiliary power unit includes a Wankel engine to drive an output shaft and a starter-generator coupled to the output shaft to generate electric power. The micro-auxiliary power unit includes a system that has at least one sensor disposed within the enclosure that observes a condition of the enclosure and generates sensor signals, and a controller having a processor that receives the sensor signals, determines the presence of a thermal event within the enclosure and based on the determination, outputs one or more control signals to the fuel valve to move the fuel valve to the closed position.

An internal combustion engine comprises a plurality of engine units (50A-50C), each having a working space (11), in which two rotary pistons (20, 30) are arranged so as mesh with each other and thereby divide the working space (11) into an inflow region (12) and an outflow region (13). Each engine unit comprises a closable inlet opening (62A-62C) to the inflow region (12) and a closable exhaust gas outlet opening (64A-64C). The internal combustion engine further comprises a feed-line pipe (60) to the inlet openings (62A-62C) and an exhaust gas collection pipe (66) connected to the exhaust gas outlet openings (64A-64C), so that the engine units (50A-50C) are connected in parallel with each other. The internal combustion engine further comprises exhaust gas lines (63A, 63B) which connect the engine units (50A, 50B) with each other in series. In dependence upon a desired power output, a control device (70) operates some of the engine units (50B, 50C) either as internal combustion engines, wherein the respective inlet opening (62B-62C) is opened, or as expansion engines, wherein respective inlet opening (62B-62C) remains closed and the respective rotary pistons (20, 30) are instead driven by exhaust gas flowing in via the respective exhaust gas line (63A, 63B).

This patent application covers the power functions of a vapor powered motor, and shows this device. Adaptive descriptions and drawings will show how useful this invention can be, and that it can operate any engine and any motor. Equivalent uses of heat would provide the vapor pressure needed to operate the vapor powered devices. In such terms, it would be the equivalent of an injector with heat, that times and delivers fluids to power a device. The prime motive power is heat that is provided by chemistry, plus electricity and electronic means for continuous demand. Additionally, several gases are shown that can add to, and be useful with water and steam to avoid overheating, freezing, and provide lubrication to reduce wear.

This patent application covers the power functions of a vapor powered motor, and shows this device. Adaptive descriptions and drawings will show how useful this invention can be, and that it can operate any engine and any motor. Equivalent uses of heat would provide the vapor pressure needed to operate the vapor powered devices. In such terms, it would be the equivalent of an injector with heat, that times and delivers fluids to power a device. The prime motive power is heat that is provided by chemistry, plus electricity and electronic means for continuous demand. Additionally, several gases are shown that can add to, and be useful with water and steam to avoid overheating, freezing, and provide lubrication to reduce wear.