PROBLEM TO BE SOLVED: To provide an SOI substrate and its manufacturing method which perfectly prevents impurities contained in a support substrate or adsorbed to a cladding surface of the substrate support with a single crystal silicon substrate from diffusing to a single crystal silicon layer. SOLUTION: The SOI substrate 200 is manufactured by steps of thermally oxidating a single crystal silico...

PROBLEM TO BE SOLVED: To provide smaller and more inexpensive optical transmitter/receiver and optical receiver by reducing electrical and optical crosstalk between a transmitting section and a receiving section or between receiving sections. SOLUTION: A transmitting section comprising a plurality of optical coupling means, light emitting elements, and driving ICs; and a receiving section comprisi...

PROBLEM TO BE SOLVED: To reduce a cost by surely oil-tightly connecting the upstream end part of a head side oil passage 85 to the downstream end part of a case side oil passage 101 without mounting a sealing member or the like when oil is fed to variable valve systems 53 and 54 through the oil passage 101 formed in a chain case 7. SOLUTION: An engine mount mounting part 92 is integrally formed wi...

PROBLEM TO BE SOLVED: To provide a method efficiently recovering heat and enhancing the utilization of heat from the standpoint of a device cost and an operation cost in a conversion system of heat energy and chemical energy using the decomposition reaction of methanol and methyl formate and the synthetic reaction of methanol and methyl formate. SOLUTION: Heat is recovered by liquid phase decompos...

PROBLEM TO BE SOLVED: To avoid an abnormal rise of an intermediate stage pressure in an oil-cooled two-stage screw compressor. SOLUTION: The oil-cooled two-stage screw compressor for compressing a suction air with the rotation of a pair of male and female screw rotors meshing each other comprises a space 26 formed on the lower side of a high pressure stage suction port 14 in communication with an ...

PROBLEM TO BE SOLVED: To provide a submersible pump for maintaining the long-time stable floatation preventing performance of a pump shaft while suppressing the wear as well as vibration at a fitting portion of a spline. SOLUTION: The submersible pump has a structure with a submersible motor 1 having an output shaft 2 with its tip end face fastened to a wall portion of a sleeve member 4 facing the...

PROBLEM TO BE SOLVED: To provide a multiblade blower in use for an air-conditioner, etc., having an impeller for suppressing the occurrence of a peeling vortex in an inlet flow in the impeller and preventing the generation of noises resulting from the peeling vortex. SOLUTION: A plurality of blades are annularly arrayed on a main plate to form the impeller. Each blade has such a sectional shape pe...

PROBLEM TO BE SOLVED: To provide a water supply device for suppressing the temperature rise of a control board due to the heat of the control board itself housed in a small housing space in parallel to a motor as well as heat given from the motor. SOLUTION: The water supply device comprises a shielding member 57 having a passage portion 58 for shielding between a water supply pump 11a and the cont...

PROBLEM TO BE SOLVED: To provide a pressure reducing valve not reducing a controlled flow rate with a mechanism to roughly offset bi-directional thrusts each other by generating the opposite directional thrust matching to a secondary pressure in order not to obstruct a lever operation when the operating force of the lever is increased by unidirectional thrust generated by the secondary pressure, i...

PROBLEM TO BE SOLVED: To provide an edge guard part not taking much time for fixing work and not coming off easily. SOLUTION: In the edge guard part 1 provided with a side plate 3 on both sides of a strip-like bottom 2 in the longitudinal direction respectively, lock pieces 5, 6, connected on both sides of the strip-like bottom 2 in place by a hinge 4, are individually set so as to face each other...

PROBLEM TO BE SOLVED: To provide a toothed belt in which an engaged face of the toothed belt has high wear resistant property and superior durability, as an intermediate thread is integrated with rubber sheet forming the toothed belt, in which the intermediate thread is woven by a first thread made of an high elastic fiber and a second thread made of a chemical fiber and is also exposed through a ...

PROBLEM TO BE SOLVED: To shorten the set length of gear ratio steps between the second and first speed stages and between the second and third speed stages in the axial direction of a transmission. SOLUTION: The transmission comprises one double-pinion planetary gear G1, three single pinion planetary gears G2, G3 and G4, two friction clutch elements C1 and C2, and three friction brake elements B1,...

PROBLEM TO BE SOLVED: To provide a power transmission mechanism with an HMT capable of securely preventing unintended power transmission. SOLUTION: The power transmission mechanism comprises a static hydraulic continuously variable transmission for shifting the rotation driving force from a drive source without stages and outputting the rotation driving force, a planetary gear device, a brake devi...

PROBLEM TO BE SOLVED: To provide a method of a variable speed control for controlling the reduction of the toque of an output shaft of an automatic transmission as much as possible during a gearshift without extending the gearshift time. SOLUTION: The automatic transmission 10 shifts gears from the forward fourth speed stage to the forward fifth speed stage by reducing oil pressure on a release si...

PROBLEM TO BE SOLVED: To provide a conduit tube of synthetic resin having large pressure resistance, easiness to bend, hardness to cut, and length adjustability to achieve favorable workability. SOLUTION: This conduit tube comprises a number of tube elements 10 serially connected to each other by joint parts 3 and 4 at both ends. The tube element 10 comprises a number of circular bodies 1 coaxiall...

PROBLEM TO BE SOLVED: To provide a ceiling hanging type air conditioner rest where an air conditioner can be put simply on supporting frames on both sides supported by four pieces of hanging levers even in the case of one-man work. SOLUTION: All of the four pieces of hanging levers 20, 20, etc., are constituted of vertical levers 20A and 208 which are combined slidably and make one set each with t...

PROBLEM TO BE SOLVED: To provide an air shower which can be simply installed in an entrance passage for work related persons engaged in a repair work and easily removed. SOLUTION: An inlet 15 and an outlet 16, through which a person can pass, are formed in a freely movable box body 10. A nozzle 36 through which air is discharged toward the internal part of the box body is provided. The air shower ...

PROBLEM TO BE SOLVED: To provide an air conditioner constituted that the timing of operation and a stop of a compressor are arbitrarily adjustable. SOLUTION: A compressor, a four-way valve, a condenser, and an evaporator are interconnected in an annular state, in the order, through refrigerant piping to constitute a refrigerating cycle. Further, the air conditioner comprises a remote control 23 to...

PROBLEM TO BE SOLVED: To provide a fail safe oil lubrication system of helium compressor which has long life by being supplied with compressed helium gas containing no oil. SOLUTION: In an oil lubrication system of helium compressor unit, an adsorber can preserve all the oil carried from the compressor to itself before the system stops. The compressor itself either stops due to a protection switch...

PROBLEM TO BE SOLVED: To monitor the temperature at a section to be controlled of a graphitization electric furnace even if the temperature is 3000 deg.C or above. SOLUTION: Temperature at an objective section 7a of a graphitization electric furnace 1 is controlled. Correlation of temperature between the objective section 7a and the peripheral part 7b thereof is determined and temperature at the p...