Abstract: This ice making machine includes an ice making unit that includes an ice making surface and a cryogen flow channel through which a cryogen for cooling the ice making surface flows; a pump that pressurizes and discharges the cryogen cooled by a heat exchanger; and a control unit that controls a discharge amount of the pump. The cryogen is carbon dioxide, and the control unit controls the pump such that the cryogen is in a gas-liquid mixed state at an outlet of the cryogen flow channel.

Abstract: When a front panel moves away from a front surface of a casing, a central part of the front panel is warped. An indoor unit of the present invention includes a casing, a front panel provided forward of the casing, and a drive mechanism moving the front panel away from the front surface of the casing. The front panel is curved so that its central part protrudes forward. The drive mechanism moves the front panel in a substantially horizontal direction.

Abstract: A drive mechanism is configured to drive a movable member of an air conditioner. The drive mechanism includes a motor, a pinion secured to a rotating shaft of the motor, a rack meshing with the pinion, and a guide. The rack has a driven portion directly or indirectly linked to the movable member. The guide is arranged to guide the rack so that the driven portion can travel in a curved path. The guide has a tube part through which the rack passes.

Abstract: In a known indoor unit, a casing may move away from a wall surface and a gap may be formed between the casing and the wall surface, with the result that the design of the indoor unit may be deteriorated. An indoor unit includes a mounting board fixed to a wall surface and a bottom frame (casing) attached to the mounting board. The bottom frame (casing) has screw holes (screw fixing portions) for fixing the bottom frame (casing) to the wall surface of the room.

Abstract: When a front panel moves away from a front surface of a casing, a central part of the front panel is warped. An indoor unit of the present invention includes a casing, a front panel provided forward of the casing, and a drive mechanism moving the front panel away from the front surface of the casing. The front panel is curved so that its central part protrudes forward. The drive mechanism moves the front panel in a substantially horizontal direction.

Abstract: In an indoor unit in which a front surface of a casing is curved to bulge so that its central part is at the foremost, a filter cannot be easily taken out. An indoor unit of the present invention includes a casing, a front panel provided forward of the casing, and a filter arranged to be attachable to a mounting position to cover an opening formed on a front surface of the casing. On the front surface of the casing, a protruding wall surface is provided around a lower end portion of the opening to protrude forward, a front end of the protruding wall being curved so that a central part of the front end protrudes forward. The front panel is rotatable relative to the casing so that the lower end portion thereof moves forward, and the protruding wall surface is inclined forward in a downward direction.

Abstract: During operation of an indoor unit, the inside of a casing is easily seen while a front panel is moving away from the front surface of the casing, and hence the appearance of the indoor unit is deteriorated. An indoor unit of the present invention includes a casing and a front panel provided forward of the casing and movable away from the front surface of the casing. The front surface of the casing (the front surface of a front grill) is curved at around its ends in the longitudinal direction so that the thickness of the indoor unit increases toward a central part in the longitudinal direction. The front panel is curved so that its central part protrudes forward and includes extension parts which extend outward as compared to the ends of the front surface of the casing (the front surface of the front grill).

Abstract: The fuel amount measuring device 10 comprises a plurality of detectors 22, 36 disposed within a vessel and an output circuit 38 configured to output an analog detection signal based on first analog signals outputted by the plurality of detectors. The analog detection signal corresponds to an amount of liquid within the vessel. Each of the plurality of detectors 22, 36 includes a float 24, 32; an arm member 26, 34 connected to the float such that vertical movement of the float is converted to rotational movement of the arm member, and a magnetic sensor 31, 41 configured to output a second analog signal corresponding to the rotational movement of the arm member. When the first analog signals outputted by the detectors 22, 36 are inputted to the output circuit 38, the output circuit 38 outputs the analog detection signal based on the inputted first analog signals.

Abstract: A rotational position sensor includes a rotor substrate and a stator substrate placed to face each other to detect rotational displacement of the rotor substrate. The rotor substrate is formed with an excitation coil in a meandering pattern on an outer circumferential side and a rotor-side rotary transformer on an inner circumferential side. The stator substrate is formed with four detection coils in a meandering pattern on an outer circumferential side and a stator-side rotary transformer on an inner circumferential side. The four detection coils are arranged in a circumferential direction without overlapping each other. The detection coils are displaced from each other by 360°/8. The rotational position sensor includes a high frequency excitation circuit for applying a high frequency signal to the excitation coil through the rotor-side rotary transformer and the rotor-side rotary transformer to excite the excitation coil.

Abstract: An electromagnetic induction type rotary encoder includes an excitation board including an excitation coil, a detection board fixed to a movable element to face the excitation board and including a detection coil placed to face the excitation coil with a clearance therefrom, and a controller for outputting an excitation signal to the excitation coil and processing a detection signal output from the detection coil. The controller includes an excitation circuit for exciting the excitation coil at high frequency and a high-frequency generating circuit, a demodulation circuit for demodulating a signal from the detection coil in accordance with excitation to the excitation coil, a waveform shaping circuit for waveform shaping a signal from the demodulation circuit, and a pulse generating circuit for outputting a pulse signal based on the signal from the waveform shaping circuit. Each of the excitation coil and the detection coil is formed in a meandering coil pattern.

Abstract: A phase difference type resolver is adapted such that a calculator calculates an angle from a phase difference at a detection-signal zero cross point, determines a velocity at the angle based on an angle calculated from a phase difference at a previous detection-signal zero cross point, calculates an estimated angle at a next detection-signal zero cross point based on the velocity, divides a difference between the estimated angle and the angle into predetermined minimum detection angles, and outputs a real-time signal based on the minimum detection angles in a range after the angle but before the estimated angle.

Abstract: A position sensor is configured such that a rotor pattern formed on a rotor in a position facing a stator includes non-magnetic conductive parts cyclically formed, a stator coil includes an excitation coil and a detection coil, which are wound in the same direction, and the width of each coil is equal to one cycle of the rotor pattern.

Abstract: In a fault diagnosis system (10) in a load driving arrangement, the fault diagnosis system detecting a fault in the load driving arrangement in which a controller (13) outputs a control signal to a driver (12) and the driver (12) drives a load (11) according to the control signal, a fault detecting unit (21) and an exclusive OR circuit (22) are provided to enable outputting, as a monitor signal, a signal opposite to the control signal upon detecting a fault in the load driving arrangement and outputting, as a monitor signal, the same signal as the control signal when not detecting a fault, a monitor signal output from the exclusive OR circuit (22) is input to the controller (13), and the controller (13) compares the control signal and the monitor signal and diagnoses whether a fault occurs in the load driving arrangement, based on the result of the comparison.

Abstract: A rotational position sensor includes a rotor substrate and a stator substrate placed to face each other to detect rotational displacement of the rotor substrate. The rotor substrate is formed with an excitation coil in a meandering pattern on an outer circumferential side and a rotor-side rotary transformer on an inner circumferential side. The stator substrate is formed with four detection coils in a meandering pattern on an outer circumferential side and a stator-side rotary transformer on an inner circumferential side. The four detection coils are arranged in a circumferential direction without overlapping each other. The detection coils are displaced from each other by 360°/8. The rotational position sensor includes a high frequency excitation circuit for applying a high frequency signal to the excitation coil through the rotor-side rotary transformer and the rotor-side rotary transformer to excite the excitation coil.

Abstract: A phase difference type resolver is adapted such that a calculator calculates an angle from a phase difference at a detection-signal zero cross point, determines a velocity at the angle based on an angle calculated from a phase difference at a previous detection-signal zero cross point, calculates an estimated angle at a next detection-signal zero cross point based on the velocity, divides a difference between the estimated angle and the angle into predetermined minimum detection angles, and outputs a real-time signal based on the minimum detection angles in a range after the angle but before the estimated angle.

Abstract: The present invention provides a fuel supply device that can suppress the excessive heating of a fuel supplied from a fuel pump into an internal combustion engine even if a control module is cooled. The fuel supply device (1) comprises a set plate (10) attached to a mounting hole (34a) of a fuel tank (34), an electric fuel pump (30) attached to an inner surface of the set plate (10), a control module (14) attached to an outer surface of the set plate (10), the control module driving the fuel pump (30) using electric power supplied from the exterior, and a heat radiating member (32) for radiating heat generated in the control module. One end of the heat radiating member (32) is thermally connected to the control module (14), and the other end of the heat radiating member (32) protrudes downward from the inner surface of the set plate (10).

Abstract: A fuel pump unit includes a fuel pump which is driven by a motor, a secondary filter case placed to surround the fuel pump and contains a filter, a reserve cup which houses the fuel pump and the secondary filter case, and a pump controller which drivingly controls the fuel pump. A shielding material is provided in the reserve cup to shield electrical noise generated by the fuel pump. The shielding material is grounded. The pump controller includes a pump drive circuit which is provided with an electric filter.

Abstract: An electromagnetic induction type rotary encoder includes an excitation board including an excitation coil, a detection board fixed to a movable element to face the excitation board and including a detection coil placed to face the excitation coil with a clearance therefrom, and a controller for outputting an excitation signal to the excitation coil and processing a detection signal output from the detection coil. The controller includes an excitation circuit for exciting the excitation coil at high frequency and a high-frequency generating circuit, a demodulation circuit for demodulating a signal from the detection coil in accordance with excitation to the excitation coil, a waveform shaping circuit for waveform shaping a signal from the demodulation circuit, and a pulse generating circuit for outputting a pulse signal based on the signal from the waveform shaping circuit. Each of the excitation coil and the detection coil is formed in a meandering coil pattern.

Abstract: A resolver includes an excitation signal generator which generates a sine wave and a cosine wave as an excitation signal, a rotor which receives the excitation signal, and a rotary transformer which detects an output signal of the rotor, the resolver being arranged to detect angle information of the rotor. The resolver further includes a controller which outputs angle information at a zero cross point of the output signal detected by the rotary transformer. The resolver can provide high detection accuracy and be low in cost.

Abstract: A fuel supply system comprises an engine control unit (ECU), a fuel pump with a built-in pump motor which is PWM controlled based on a control signal from the ECU, a pump controller for controlling supply of electric power to the pump motor, and sensors for detecting an operating state of the engine. A control section of the pump controller controls to change a frequency to be lower as a duty ratio of a PWM control signal to operate a power transistor of an output circuit is higher and inversely to change the frequency to be higher as the duty ratio is lower.