Abstract: An electric compressor which compresses a coolant by driving a compression mechanism with a motor which is drive controlled by a drive circuit, said compressor being characterized by having a lead pin connected to a current output section of the drive circuit, and a connector which, by being mounted on the lead pin, can provide electrical continuity between the current output section of the drive circuit and a current input section of the motor, said connector being provided with a connector terminal which contacts the lead pin at the time of mounting on the lead pin, a connector housing which houses the connector terminal, a vacuum flow path that communicates the inside of the connector housing with the outside thereof, and a sealing member which provides a seal between the connector housing and the vacuum flow path.

Abstract: In a vehicle air conditioning apparatus, during a cooling operation, and a cooling and dehumidifying operation, a refrigerant flows through an outdoor heat exchanger, flows through a supercooling radiator, and then flows into a radiator to absorb heat. During a heating operation, the refrigerant flows through a heat exchanger and then is sucked into a compressor without passing through the supercooling radiator. During a first heating and dehumidifying operation, the refrigerant flows through another radiator, flows through the supercooling radiator, and then flows into another heat exchanger to absorb heat.

Abstract: [Object of the Invention] An object of the present invention is to provide a reciprocation compressor comprising an extraction passage connecting a crank chamber with an inlet chamber, an aperture disposed in the extraction passage and a filter capturing foreign matters flowing from the crank chamber to the inlet chamber, wherein the foreign matters captured by the filter is restrained from returning to the crank chamber even if reverse flow of refrigerant from the inlet chamber to the crank chamber is generated, and the filter does not restrict design specifications of other members of the compressor.

Abstract: A vehicle air conditioning apparatus includes an outdoor expansion valve controller configured to control an evaporating temperature of a refrigerant in a heat exchanger by regulating an opening of an outdoor expansion valve during a heating and dehumidifying operation, an evaporating temperature control valve provided in a refrigerant flow passage to an output side of the heat exchanger from which the refrigerant is discharged, and configured to control the evaporating temperature of the refrigerant in the heat exchanger by regulating an amount of the refrigerant flowing through the refrigerant flow passage, a temperature detector configured to detect a temperature of the refrigerant in the heat exchanger, and a control changer configured to change control of the evaporating temperature of the refrigerant in the heat exchanger from by regulating an opening of the outdoor expansion valve to by regulating an opening of the evaporating temperature control valve.

Abstract: A Rankine cycle (6) of a waste heat utilization device includes a circulation path (7) for circulating a working fluid therethrough, an evaporator (12) for causing heat to transfer from cooling water delivered from an internal combustion engine (2) to the working fluid to evaporate the working fluid, a superheater (10) for causing heat to transfer from the cooling water delivered from an exhaust gas heat exchanger (8) to the working fluid delivered from the evaporator to superheat the working fluid, an expander (22) for expanding the working fluid delivered from the superheater to produce driving force, a condenser (24) for condensing the working fluid delivered from the expander, and a pump (28) for feeding the working fluid delivered from the condenser to the evaporator. The evaporator, the superheater, the expander, the condenser and the pump are successively inserted in the working fluid circulation path.

Abstract: The Rankine cycle (31) includes a refrigerant pump (32), a heat exchanger (36), an expander (37), and a condenser (38). The Rankine cycle (31) shares the condenser (38) and refrigerant with a refrigerant cycle of an air-conditioner. A refrigerant passage connecting to an outlet of the condenser (38) branches at a refrigeration cycle branch point (45) to connect to the refrigerant pump (32) and an evaporator (55). In the case of operating the Rankine cycle, without a request to operate the air-conditioner, the compressor (52) in the refrigeration cycle is driven.

Abstract: A vehicle air conditioning apparatus can ensure that the temperature of the air supplied to the vehicle interior is a preset temperature by securing the quantity of heat release for the radiator during a cooling and dehumidifying operation. The valve opening of the condensing pressure regulating part of the first control valve is smaller when the calculated opening SW of the air mix damper is equal to or more than the predetermined value than when the opening SW is smaller than the predetermined value. Accordingly, when the quantity of heat release is not sufficient in the radiator, it is possible to increase the condensing pressure of the refrigerant in the radiator to raise the temperature of the refrigerant in the radiator. Consequently, it is possible to secure the amount of heating, and therefore to ensure that the temperature of the air supplies to the vehicle interior is a preset temperature.

Abstract: A heat exchanger includes a main core portion (6) for conducting heat exchange between an air and a refrigerant, a receiver tank (8) into which the refrigerant having passed through the main core portion flows, and a subcool core portion (10) for supercooling and liquefying a gas-liquid mixed refrigerant having passed through the receiver tank by heat exchange with the air, wherein the subcool core portion is composed of a plurality of tubes (22) arranged along a crosswise direction between left and right header tanks (20) arranged along the crosswise direction, respectively, in a state in parallel with each other and communicating with both the left and right header tanks; and fins (24) arranged between the adjacent tubes.

Abstract: Disclosed is a wobble plate type variable displacement compressor that uses a constant velocity universal joint mechanism, which comprises an inner ring and an outer ring, balls that are held between guide grooves of the inner ring and the outer ring to transmit power, wherein a wobble plate is connected and fixed to the outer ring. In the compressor, at least any one of the guide grooves opposing each other of the inner and outer rings is formed along a guide groove cross-sectional profile to come into contact with a ball at two points. With this wobble plate type variable displacement compressor using the specified constant velocity universal joint mechanism, the ball retaining structure between the inner and outer rings in the wobble plate rotation preventing mechanism can be improved, and desired power transmission can be stably performed.

Abstract: There is provided a vending machine that prevents a commodity receptacle from being damaged and a commodity from slipping out thereof by a shock due to falling even if a commodity receptacle undergoes free fall without requiring a complicated structure for preventing the commodity receptacle from undergoing free fall. When it is detected that the fall velocity of a bucket 60 falling due to disconnection of power supply to a second motor 72a of a bucket moving mechanism 70 is equal to or greater than a predetermined speed, a braking force for decelerating the fall velocity of the bucket 60 is intermittently generated and thereby the bucket 60 can be lowered to the lowest point at a speed slower than free fall. This configuration prevents the bucket 60 from being damaged and a commodity from slipping out thereof by a shock due to falling and does not require a complicated structure for preventing the bucket 60 from undergoing free fall.

Abstract: A reciprocating compressor having an aperture control valve for an inlet passage. Sectional area of the inlet passage is maintained near the outlet holes of the aperture control valve, distribution of flow rates of refrigerant gas drawn into the cylinder bores during inlet stroke is even. A cylinder block is provided with cylinder bores, a valve plate opposing one end of the cylinder block having inlet and outlet hole pairs, and a cylinder head forming an annular outlet chamber and a cylindrical inlet chamber radially inside the outlet chamber. The cylinder head has an inlet passage and an outlet passage, and an aperture control valve with an inlet hole connecting with the inlet passage and outlet holes controlling the aperture of the inlet passage. The aperture control valve is disposed in the inlet chamber.

Abstract: A vibration-proof structure for an electric circuit for use in an inverter-integrated electric compressor can reduce cost and weight of the compressor and can have excellent productivity. The vibration-proof structure for the electric circuit of the electric compressor for use in a vehicle air conditioner, the compressor integrally including a motor for driving a compression mechanism and an electric circuit which controls drive of the motor, the structure being characterized in that an assembly 26, which is obtained by mounting at least one electric component requiring a vibration-resistant reinforcement (a coil and a capacitor constituting a noise filter, and a smoothing capacitor) on a dedicated circuit board 24 and by embedding the electric component with resin 25, is assembled in a housing of the compressor. Thus, resin consumption can be greatly reduced, cost and weight of the compressor can be reduced, and productivity can be improved.

Abstract: A wobble plate type variable displacement compressor uses a constant velocity universal joint mechanism, which comprises an inner ring and an outer ring, balls that are held between guide grooves of the inner ring and the outer ring to transmit power, and a sleeve, which functions as a wobble central member of the wobble plate. An inner ring rotation preventing mechanism is constructed as a contoured interlock mechanism formed between the outer circumference of the inner ring and the inner circumference of a housing. A swash plate minimum inclination angle regulating mechanism, which regulates the minimum inclination angle of the swash plate by abutting the axial ends of the inner ring side and the housing side of the contoured interlock mechanism to each other, is provided to the contoured interlock mechanism.

Abstract: An engine-waste-heat utilization device includes a Rankine cycle with a heat exchanger that is configured to recover engine-waste-heat to refrigerant, an expander that is configured to generate power using the refrigerant coming out from the heat exchanger, a condenser that is configured to condense the refrigerant coming out from the expander and a refrigerant pump that is configured to supply the refrigerant coming out from the condenser to the heat exchanger by being driven by the expander, a power transmission mechanism (crank pulley, pump pulley, belt) that is configured to transmit surplus power to the engine when the expander has spare power even if the refrigerant pump is driven, a clutch that is configured to connect and disconnecting power transmission by the power transmission mechanism, and a case provided near a high-temperature part of the engine such that a shaft of the expander and that of the refrigerant pump are coaxially arranged, the clutch, the refrigerant pump and the expander are integr

Abstract: A communication device having a communication module as data circuit-terminating equipment connecting to a wireless packet communication network, and a controller interposed between the communication module and a data terminal equipment. The controller controls communication performed by the data terminal equipment using the communication module. The controller extracts, from a communication message sent from the data terminal equipment to a first management server, identification information of the data terminal equipment, stores the extracted identification information in a storage, and transmits the extracted identification information to a second management server by using the communication module when communication is not performed between the data terminal equipment and the first management server.

Abstract: The present invention relates to a fluid machine. A pump integrated expander (29A) includes a pump unit (60) and an expansion unit (50). In the pump unit (60), a casing member (65) supports a gear pump (61), a rotating shaft (28) and a driven crank mechanism (81). In the expansion unit (50), a casing including a main body (51a) and a casing member (54) supports an expander (23) including a fixed scroll (51) and an orbiting scroll (52). The pump integrated expander (29A) is divided into the pump unit (60) and the expansion unit (50) by separating at the fitted portion of a tubular portion (65c) on the pump unit (60) side and a smaller inner diameter portion (54b) on the expansion unit (50) side and by pulling the eccentric bush (83) out of a drive bearing (56).

Abstract: Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit.

Abstract: A compressor includes a cylinder block including cylinder bores and pistons within the cylinder bores. A front housing opposes a first cylinder block end face to form a crank chamber accommodating a piston driving mechanism. A valve plate opposes a second cylinder block end face and includes suction and discharge holes. A rear housing includes suction and discharge chambers and opposes the second cylinder block end face with the valve plate there between. Strap-shaped suction valves on the valve plate end face oppose the cylinder block, thereby opening and closing the suction holes at tip portions. Discharge valves on the valve plate end face oppose the rear housing to open and close the discharge holes. Through-bolts join the front housing, the crank chamber, the cylinder block, the valve plate, and the rear housing. The valve plate includes grooves extending from holes accommodating the through-bolts to portions abutting the suction valves.

Abstract: A wabble plate type variable displacement compressor has a wabble plate rotation preventing mechanism including an inner ring axially movable relative to a main shaft, an outer ring connected to the wobble plate, a plurality of balls placed between guide grooves of the inner and outer rings and performing power transmission, and a sleeve axially movably engaged with the inner ring, provided so as to be axially movable together with the inner ring. A shape differs between the axial cross-sectional profiles of substantially concave spherical surfaces formed respectively in the inner periphery of the outer ring and the outer periphery of the sleeve such that the closer to the axial opposite ends of the contact portion between both the surfaces the position is, the greater the clearance between these surfaces. Implementation of the wabble plate rotation preventing mechanism in such a compressor can provide excellent durability and silent performance.

Abstract: Problems to be Solved To provide is a motor control device capable of detecting a rotor position of a synchronous motor under a certain accuracy and a low processing load. Means for Solving the Problems The motor control device detects the rotor position ?m by directly finding a rotor position ?m from a rotor position expression (?m=?i???90°) containing, as a variable, a current electrical angle ?i from among a phase current peak value Ip and a phase current electrical angle ?i detected in a phase current peak value and electrical angle detection unit 19 and an induced voltage peak value Ep and an induced voltage electrical angle ?e detected in an induced voltage peak value and electrical angle detection unit 20, and containing, as a variable, a current phase ? capable of being selected using [a phase current peak value Ip] and [an induced voltage electrical angle ?e?a phase current electrical angle ?i] as parameters from a predefined data table.