Abstract: The air cycle refrigerating/cooling system compresses air that has flown in with a compressor (6) in a turbine unit (5) and adiabatically expands the air with an expansion turbine (7) in a turbine unit (5). In the turbine unit (5), a compressor rotor (6a) of the compressor (6) and a turbine rotor (7a) of the expansion turbine (7) are attached to the same main shaft (13), the main shaft (13) is supported by bearings (15) and (16) so as to be freely rotatable, and part or the entirety of the thrust force applied to this main shaft (13) is supported by an electromagnet (17).

Abstract: An in-wheel motor drive apparatus is provided that facilitates the dissipation of the heat generated by a motor and that is excellent in cooling performance. A range (L) of number of revolutions within which a motor (B) generates a maximum torque by low-speed-rotation includes a high-output sub-zone (LH) in which a torque is no less than 50% of the maximum torque. In the high-output sub-zone, a loss in a stator represents no less than 50% of a loss in the motor (B), with the loss in the motor consisting of copper loss and core loss. The motor (B) may include cooling medium passage(s) (45) configured to cool coil portion(s) (28) of the stator (23) with a cooling liquid, and the copper loss may represent no less than 25% of the loss in the motor (B).

Abstract: A drive motor for an electric vehicle is an IPM motor including a motor rotor (25), which is made up of a rotor core portion (29) having an inner peripheral surface, which is mounted externally on a rotary output shaft (24) and which is round in sectional shape, and a permanent magnet (30) disposed within the rotor core portion (29). At a circumferential position which will become proximate to a site of the permanent magnet (30), displaced towards an outer diametric side of the rotor core portion (29), an inner peripheral surface of the rotor core portion (29) and an outer peripheral surface of the rotary output shaft are provided with respective non-round shaped portions (29a, 24a) of a circular shape in section, which form respective parts of a detention or arresting unit (31) for arresting the motor rotor (25) from rotating relative to the rotary output shaft (24).

Abstract: This centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, and a permanent magnet provided in an inner wall of the blood chamber, for attracting the permanent magnet. A centerline of the permanent magnet is arranged at a position different from that of a centerline of a sidewall of the blood chamber such that a rotation centerline of the impeller matches the centerline of the sidewall of the blood chamber during pump operation. Therefore, high torque transmission efficiency is obtained.

Abstract: A remote controlled work robot including a remote controlled actuator and a support device therefor. The remote controlled actuator includes a spindle guide section of an elongated configuration, a distal end member fitted to a distal end of the spindle guide section through a distal end member coupling structure for alteration in attitude, and a drive unit housing connected with a base end of the spindle guide section. The distal end member rotatably supports a spindle for holding a tool. The support device includes a single degree-of-freedom system, in which the remote controlled actuator has a degree of freedom in one direction, or a multi-degrees-of-freedom system, in which the remote controlled actuator has a two or more degrees of freedom relative to a base on which the support device is installed. A drive source and is also provided for driving the degree-of-freedom system.

Abstract: A remote-controlled actuator assembly includes a distal end member fitted to a tip end of a spindle guide section for alteration in attitude, a tool rotatably provided in the distal end member, a tool rotation drive source for rotating the tool, and an attitude altering drive source for operating the attitude of the distal end member. The spindle guide section has a rotary shaft for transmitting a rotation of the tool rotation drive source to the spindle and an attitude altering member to alter the attitude of the distal end member. The attitude altering drive source includes a reduction unit to reduce a speed of input rotation from the attitude altering drive source, a motion converter mechanism to convert a rotational output from the reduction unit to advance/retraction motion, and an output member to cause the attitude altering member to advance/retract according to an output of the motion converter mechanism.

Abstract: A flexible wire assembly of a compact structure that can transmit the torque for a high speed rotation even in a bent condition is provided. The flexible wire assembly (A) includes a flexible outer tube (1), in which a flexible inner wire (2) having its opposite ends defining rotation input and output ends (2a and 2b), respectively, is rotatably supported by means of a plurality of rolling bearings (3). Spring elements (4I and 4O) are employed for applying preloads to those rolling bearings (3). The use is also made of a speed reducing mechanism (22) for reducing in speed and outputting rotation of the inner wire (2). The spring elements (4I and 4O) includes inner ring spring elements (4I) and outer ring spring elements (4O) that are alternately arranged over the length of the inner wire (2).

Abstract: This insertion device is an insertion device for inserting a medical linear body in a vessel in a body, and it includes a drive device for moving the medical linear body in a direction of a longitudinal axis, a measurement device for measuring compressive force and pulling force in the direction of the longitudinal axis applied to the medical linear body, and a notification device for notifying an operator of compressive force and pulling force measured with the measurement device.

Abstract: A remote-controlled actuator includes a spindle guide section of an elongated shape, a distal end member fitted to a distal end of the spindle guide section for alteration in attitude and rotatably supporting a tool, and a drive unit housing having a base end of the spindle guide section connected therewith. A rotary shaft for transmitting rotation of a tool rotation drive source within the drive unit housing to the tool and an attitude altering member for altering the attitude of the distal end member by the drive of an attitude altering drive source within the drive unit housing are accommodated within the spindle guide section. A cutting force estimator is provided for estimating the magnitude of at least one component force of a principle force, a radial force and a feed force in a cutting force which the tool applies to a work to be processed.

Abstract: This measurement device is a measurement device for measuring compressive force and pulling force in a direction of a longitudinal axis applied to a linear body having flexibility, and it includes a main body in which a through hole for inserting the linear body is formed. The through hole is formed to allow bending of the linear body in an arc shape in the through hole and variation in degree of bending of the linear body in accordance with compressive force and pulling force. This measurement device further includes a sensor for detecting a degree of bending of the linear body and a conversion circuit for converting the degree of bending detected by the sensor into a signal indicating compressive force and pulling force applied to the linear body.

Abstract: A compressor rotor 6a and a turbine rotor 7a are respectively attached at either end of the main shaft 13 so that the compressor rotor 6a is driven by the power generated by the turbine rotor 7a. The main shaft 13 is supported by rolling contact bearings 15 and 16 relative to the radial direction. The thrust force applied to the main shaft 13 is supported by electromagnets 17. A sensor 18 is provided to detect the thrust force which affects the main shaft 13 through air within the compressor 6 and the expansion turbine 7. In the sensor 18, sensor elements having the properties changeable in accordance with a pressing force and capable to electrically detect the change in the properties are arranged in a circumferential direction of the main shaft. The sensor 18 detects the thrust force from the output of the sensor elements.

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a plurality of permanent magnets provided in the impeller, and a plurality of sets of magnetic materials and coils provided in a motor chamber for driving the impeller to rotate with a diaphragm interposed therebetween. The plurality of permanent magnets are aligned with a gap therebetween in a rotation direction of the impeller. Accordingly, if the weight of the permanent magnets is maintained at a constant value, a magnetic field can be strengthened even with a wide motor gap due to the diaphragm, as compared to an example where there is no gap between the permanent magnets.

Abstract: A sensor-equipped bearing for a wheel rotatably supporting the wheel relative to a vehicle body includes an outer member (1) provided with a double-row raceway surface (3) on an inner periphery thereof, an inner member (2) provided with raceway surfaces (4) opposing to the raceway surfaces (3) of the outer member (1), one of the outer and inner members serving as a stationary member, double-row rolling elements (5) interposed between the outer and inner raceway surfaces, a sensor fitting member (22) fixed to a peripheral surface of the stationary member, and a plurality of strain sensors (23) attached to the sensor fitting member (22) for measuring a strain thereof.

Abstract: A remote controlled actuator includes an elongated spindle guide section (3), a distal end member (2) fitted to the distal end thereof for alteration in attitude, and a drive unit housing (4a) connected with a base end of the spindle guide section (3). The distal end member (2) rotatably support a spindle (13) holding a tool (1). The spindle guide section (3) includes a rotary shaft (22) for transmitting a rotation of the spindle (13) and an attitude altering member (31) for altering the attitude of the distal end member (2) both within an outer shell pipe (25) forming an outer shell. The attitude altering member (31) is reciprocally movably inserted in a guide pipe (30) within the outer shell pipe (25). A guide pipe restraining unit (50) is provided for restraining the guide pipe (30) from moving within the outer shell pipe (25).

Abstract: A remote controlled work robot including a remote controlled actuator and a support device therefor. The remote controlled actuator includes a spindle guide section of an elongated configuration, a distal end member fitted to a distal end of the spindle guide section through a distal end member coupling structure for alteration in attitude, and a drive unit housing connected with a base end of the spindle guide section. The distal end member rotatably supports a spindle for holding a tool. The support device includes a single degree-of-freedom system, in which the remote controlled actuator has a degree of freedom in one direction, or a multi-degrees-of-freedom system, in which the remote controlled actuator has a two or more degrees of freedom relative to a base on which the support device is installed. A drive source and is also provided for driving the degree-of-freedom system.

Abstract: A remote controlled actuator includes a spindle (13) for holding a tool (1), a spindle guide section (3) of an elongated configuration, a distal end member (2) rotatably supporting the spindle, and a drive unit housing (4a) connected to a base end of the spindle guide section. The distal end member is fitted to the spindle guide section for alteration in attitude. The spindle guide section includes an outer shell pipe, a rotary shaft, and guide pipe. Within the guide pipe, an attitude altering member is inserted to alter the attitude of the distal end member. A connection device (51) detachably connects the spindle guide section with the drive unit housing.

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

Abstract: In this centrifugal blood pump apparatus, one permanent magnet is provided in one surface of an impeller, a second permanent magnet is provided in an inner wall of a blood chamber, a third permanent magnet is provided in the other surface of the impeller, and a fourth permanent magnet and a rotor for driving the impeller to rotate are provided, with an diaphragm being interposed. An amount of change in attractive force between the first permanent magnet and the second permanent magnet and an amount of change in attractive force between the third and fourth permanent magnets when the impeller is eccentric are made substantially equal to each other. Therefore, a levitation position of the impeller can always be maintained at a substantially central position in a housing.

Abstract: A microinjection apparatus is designed to introduce the transfecting material into the transductant by inserting a minute injection needle (11) into the transductant and includes a container position adjuster (1), an imaging device (2), a position determiner (3) and a plurality of transporters (4). The container position adjuster adjusts the position of a container (12) accommodating therein the transductant. The imaging device captures through a lens (2a), an image of an inside of the container, which has been adjusted in position by the container position adjuster. The position determiner determines the position of the transductant from the image obtained by the imaging device. The plurality of the transporters are operable to transport the plural injection needles, individually for each of those injection needles, in dependence on the position information obtained by the position determiner.

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, a permanent magnet provided in an inner wall of the blood chamber, a permanent magnet provided in the other surface of the impeller, and a magnetic material and a coil provided in a motor chamber for driving the impeller to rotate via a diaphragm. Grooves for hydrodynamic bearing are formed in the diaphragm facing the impeller, and in the inner wall of the blood chamber, respectively. As a result, the impeller can be smoothly activated to drive by controlling a coil current.