Abstract:
PROBLEM TO BE SOLVED: To prevent charging of static electricity on a pulley in a gas compressor. SOLUTION: A radial ball bearing 13f keeping electrical continuity between an outer ring 13a and an inner ring 13h is arranged in a gap between a core 13c and the pulley 13b rotatably supported on an outer part of a front head 12 and rotated by drive of a circulating belt 200 wound around an outer circumference thereof. Charge of static electricity on the pulley 13b by connecting the inner ring 13h of the radial ball bearing 13f and ground by a grounding wire 13g. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a good quality fluorine-based resin coating method which does not cause peeling off against sliding under a severe load condition, does not make a shot material used during substrate coating treatment remain in a parent material, such as aluminum alloy, near a coating layer to eliminate a risk that the residual shot material damages the coating layer etc., and enables an excellent adhesion. SOLUTION: The surface of a material to be coated is irradiated with laser. Fluorine-based resin coating is applied to the surface of the material to be coated, subjected to the laser irradiation, and the coated surface is burned. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor having an oil separator efficiently separating lubricating oil from refrigerant gas within a limited space in a discharge chamber without accumulating the lubricating oil therein. SOLUTION: The gas compressor 10 includes: a compressor body 12 discharging compressed gas, in which the lubricating oil is mixed, into the discharge chamber 29; and the oil separator 50 separating the lubricating oil from the compressed gas. The oil separator 50 has the oil separating filter 52 made of a tubular net member, and a holding member 51 holding the oil separating filter 52 and attached to a wall part facing the discharge chamber 29 of the compressor body 12. The holding member 51 is provided with a holding hole 57 communicating with the discharge chamber 29 through an open window 59, and a discharged gas guide passage 60 guiding the compressed gas from the compressor body 12 to the holding hole 57. A cover part 53 is attached to close the open end 57c of the holding hole 57 with the oil separating filter 52 housed, and is provided with at least one through hole 62 connecting the holding hole 57 with the discharge chamber 29. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent overall axial fastening force of a rotary shaft and a rotation transmission part from being loaded on bolts thinner than the rotary shaft in a gas compressor. SOLUTION: Since the rotary shaft 51, a rotor 50 rotating around the shaft, and a transmission mechanism 13 (rotation transmission part) transmitting rotary drive force are provided and the rotary shaft 51 and a base part 13c of the transmission mechanism 13 are screwed in a direction in which fastening of the rotary shaft 51 and the base part 13c is enhanced by supply of rotary drive force from the transmission mechanism 13 to the rotary shaft 51, all or part of fastening force in an axial direction which has been loaded on the bolt thinner than the rotary shaft 51 in an existing compressor is loaded on male screw 51b of the rotary shaft 51 and female screw 13j of the transmission mechanism 13 screwed and mutually engaged. Consequently, tensile load bearing capacity in an axial direction between the rotary shaft 51 and the transmission mechanism 13 can be increased. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress a tenth vibration component in a gas compressor. SOLUTION: This gas compressor comprises five flat plate-like vanes 58 partitioning the space formed by the outer peripheral surface of a rotor 50 and the inner wall surface 49a of a cylinder 40 into spaces with equal-angular intervals and a rear side block 20 and a front side block 30 isolating, from the outside, the spaces disposed on both end face sides of the rotor 50, the cylinder 40, and the vanes 58 and partitioned. Through-holes 26a, 26b are formed in the rear side block 20 at two portions symmetric to a rotating shaft 51 with respect to a point. Discharge gas passages 27c, 27c extending from the positions of two through-holes 26a, 26b to a gas outlet part 28 are formed in the rear side block. The length L1 of the discharge gas passage 27 and the length L2 of the discharge gas passage 27d are not equal to each other. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor preventing intrusion of foreign matter into a compression mechanism together with gas through an intake port, without lowering suction efficiency of the compression mechanism. SOLUTION: The gas compressor 10 has a housing 13 provided with an intake port 12 and a discharge port 11, and a compression mechanism 14 sucking the gas through the intake port 12, compressing the sucked gas, and discharging the compressed gas. A check valve mechanism 18 includes: a cylindrical case 60 communicating with the outside of the housing 13 and having a circumferential wall 65 provided with openings 66 communicating with the compression mechanism 13; a valve element 63 fitted to the inside of the case 60; a spring 62 urging the valve element toward the outside of the housing 13; and a stopper 64 receiving the valve element 63 moving toward the outside of the housing 13 so that vibration generated by receiving the valve element is transmitted to the case by the stopper. A filter 61 filtering the gas passing through the openings 66 is formed in the case 60. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor increasing a freedom degree of relative position relation between an end plate and a compression mechanism and inhibiting vibration to a housing body of a compression mechanism. SOLUTION: The gas compressor 10 comprises the compression mechanism 12 with a cylinder chamber 20 defined inside, in which gas is compressed, and a housing 11 which has the housing body 14 opened at an end and an end plate 15 closing the open end 14a and receiving the compression mechanism 12, wherein the end plate 15 is formed with intake passages 28, 29 for taking the gas from the outside of the housing 11 into the cylinder chamber 20 and the gas taken into the cylinder chamber 20 of the compression mechanism 12 through the passages is compressed. The compression mechanism 12 is inserted into the end plate 15 and fixed to the end plate 15. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor inhibiting gas discharged from a cylinder chamber to a discharge space from colliding against a portion of a housing defining the discharge space. SOLUTION: The gas compressor 10 comprises a cylinder body 20 with the cylinder chamber 19 defined inside, in which the gas taken in is compressed, and the housing 11 receiving the cylinder body 20, wherein the discharge space 30 in which the gas compressed in the cylinder chamber 19 is discharged is formed by the housing 11 and the cylinder body 20. The discharge space 30 is provided with a shielding member 50 for inhibiting a flow of the gas discharged from the cylinder chamber 19 from reaching the housing 11. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor suitably preventing splashing of refrigerant oil without increasing the kinds of housings according to various postures in fixing and mounting. SOLUTION: Attaching portions 11f, 11g of a case 11 (housing) to an engine ENG can be mounted to the engine ENG at an arbitrary angular position about a rotation axis 51 with respect to a compressor body (can be mounted in a posture having an arbitrary angle) and has a set of two rib holding portions 11c, 11c' and a set of two rib holding portions 1d, 11d' to which a rib 16 is attachable and detachable corresponding to two frequently-used postures among a number of postures according to these arbitrary angles so that the rib 16 is held in almost parallel to an oil level Rs of the refrigerant oil R. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas compressor capable of surely restraining contact of a rotor with a peripheral wall of a cylinder chamber, without expanding an interval between a peripheral surface of the rotor and the peripheral wall of the cylinder chamber. SOLUTION: This gas compressor 10 has the cylinder chamber 22 regulated by a cylinder 19, and the rotor 30 for arranging the peripheral surface 30a in close vicinity to both short diameter parts 33 of its peripheral wall 22a in the cylinder chamber. Magnetic pole surfaces 30b and 33a having the same magnetic pole are formed in both short diameter parts 33 of the peripheral wall 22a of the cylinder chamber 22 and the peripheral wall 30a of the rotor 30. COPYRIGHT: (C)2007,JPO&INPIT