Abstract: There is provided a vehicle position estimation device, including: a first boundary-line calculation determination unit that calculates a first distance between the vehicle and a boundary line, and determines whether or not the vehicle has crossed the boundary line; a second boundary-line calculation determination unit that calculates a second distance between the vehicle and the boundary line, and determines whether or not the vehicle has crossed the boundary line; a traveling lane matching unit that adjusts at least one of the first and second distances for matching, based on whether or not the vehicle has crossed the boundary line, determined by the first boundary-line calculation determination unit and the second boundary-line calculation determination unit; and a position estimation unit that estimates a position of the vehicle, based on the first or second distance adjusted by the traveling lane matching unit.

Abstract: A steam turbine valve drive apparatus in an embodiment includes a piston, a cylinder, a bidirectional pump, a servo motor, and a quick closing mechanism. The cylinder houses the piston in an inner space thereof, the inner space being partitioned by the piston into a first hydraulic chamber and a second hydraulic chamber. The quick closing mechanism executes a quick closing operation of closing the steam valve unit more quickly than the closing operation. Here, the quick closing mechanism executes the quick closing operation by feeding the working oil accumulated in an accumulator to the second hydraulic chamber and draining the working oil from the first hydraulic chamber.

Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: A steam turbine valve drive apparatus in an embodiment includes a piston, a cylinder, a bidirectional pump, a servo motor, and a quick closing mechanism. The cylinder houses the piston in an inner space thereof, the inner space being partitioned by the piston into a first hydraulic chamber and a second hydraulic chamber. The quick closing mechanism executes a quick closing operation of closing the steam valve unit more quickly than the closing operation. Here, the quick closing mechanism executes the quick closing operation by feeding the working oil accumulated in an accumulator to the second hydraulic chamber and draining the working oil from the first hydraulic chamber.

Abstract: In the embodiment, a steam valve device has, a steam regulating valve, and an intermediate flow path connecting the main steam stop valve and the steam regulating valve. The main steam stop valve and the steam regulating valve respectively have: casings where flow paths are formed between horizontal inlet ports and outlet ports opened downward and valve seats are arranged in the flow paths; valve elements movable up and down in the casings; and valve rods for driving the valve elements. The valve rods extend upward, and they are pulled off upward in a direction to outside of the casings when opening the flow paths. The intermediate flow path changes the flow direction of main steam flowing out of the outlet port of the main steam stop valve from downward direction to horizontal direction to guide the main steam toward the outlet ports of the steam regulating valves.

Abstract: There is proposed a lubricant system having a plurality of motor-driven pumps operating in parallel as main oil pumps, wherein even if at least one of the main oil pumps stops, the other normally operating main oil pumps do not stop due to overload of a motor. A lubricant system 7 comprises a hydraulic pressure piping 9, a plurality of lubricant pumps 10 arranged in parallel, a plurality of AC motors 11 driving each of the lubricant pumps 10, an error detector 24 detecting a presence or absence of an error in an operating state of each of the AC motors 11, a pressure loss addition unit 25 configured to increase pressure loss in the hydraulic pressure piping 9, and a controller 26 causing the pressure loss addition unit 25 to increase pressure loss when the error detector 24 detects an error in at least one of the AC motors 11.

Abstract: A steam turbine pipe 1 of an embodiment includes: an upper half side main steam pipe 11 that leads steam to a steam turbine; an upper half side main steam control valve 30 that intervenes in the upper half side main steam pipe 11; and a post-valve drain pipe 31 that is connected to the upper half side main steam control valve 30 and leads drain to an outside. The steam turbine pipe 1 further includes: a shut-off valve 32 that intervenes in the post-valve drain pipe 31; and a branching pipe 60 that makes the post-valve drain pipe 31 on the side closer to the upper half side main steam control valve 30 than is the shut-off valve 32 communicate with the upper half side main steam pipe 11 between the upper half side main steam control valve 30 and a high-pressure turbine 200.

Abstract: In the embodiment, a steam valve device has, a steam regulating valve, and an intermediate flow path connecting the main steam stop valve and the steam regulating valve. The main steam stop valve and the steam regulating valve respectively have: casings where flow paths are formed between horizontal inlet ports and outlet ports opened downward and valve seats are arranged in the flow paths; valve elements movable up and down in the casings; and valve rods for driving the valve elements. The valve rods extend upward, and they are pulled off upward in a direction to outside of the casings when opening the flow paths. The intermediate flow path changes the flow direction of main steam flowing out of the outlet port of the main steam stop valve from downward direction to horizontal direction to guide the main steam toward the outlet ports of the steam regulating valves.

Abstract: There is proposed a lubricant system having a plurality of motor-driven pumps operating in parallel as main oil pumps, wherein even if at least one of the main oil pumps stops, the other normally operating main oil pumps do not stop due to overload of a motor. A lubricant system 7 comprises a hydraulic pressure piping 9, a plurality of lubricant pumps 10 arranged in parallel, a plurality of AC motors 11 driving each of the lubricant pumps 10, an error detector 24 detecting a presence or absence of an error in an operating state of each of the AC motors 11, a pressure loss addition unit 25 configured to increase pressure loss in the hydraulic pressure piping 9, and a controller 26 causing the pressure loss addition unit 25 to increase pressure loss when the error detector 24 detects an error in at least one of the AC motors 11.

Abstract: A head assembly having a head for recording and reproducing and a head-supporting part for supporting the head includes a signal-conducting pattern formed on the head-supporting part and connected to the head and a protection member formed at a portion of the head-supporting part so as to protect the signal-conducting pattern, the portion being attached to a head-carrying unit for carrying said head assembly.

Abstract: A head assembly having a head for recording and reproducing and a head-supporting part for supporting the head includes a signal-conducting pattern formed on the head-supporting part and connected to the head and a protection member formed at a portion of the head-supporting part so as to protect the signal-conducting pattern, the portion being attached to a head-carrying unit for carrying said head assembly.

Abstract: Self-lubricating polyacetal resin compositions and molded articles (e.g. "wear parts") formed thereof include a polyacetal base resin, and a self-lubricating effective amount of a silica powder in which a silicone polymer (e.g. silicone oil) is absorbed. The silica powder acts as a carrier for the silicone polymer so as to improve the dispersibility of the silicone polymer in the polyacetal base resin as well as to allow greater silicone polymer "loading" of the polyacetal base resin. As a result, improved lubricant dispersibility and sliding characteristics are achieved.

Abstract: Polyacetal resin molding compositions and sliding members formed thereof exhibit anti-friction and abrasion-resistance properties. The polyacetal resin molding compositions include (A) 100 parts by weight of a polyacetal base resin, (B) between 0.5 to 40 parts by weight of a branched or cross-linked graft copolymer which is a graft-reaction product of (a) an olefin polymer, and (b) a vinyl or ether polymer, (C) between 0.1 to 20 parts by weight of a lubricant, and (D) between 0.5 to 30 parts by weight of an inorganic powder having a mean particle diameter of 50 .mu.m or less and a content of particles having a particle diameter of 100 .mu.m or less of at least 95%.

Abstract: A self-lubricating wear part is formed of a polyacetal resin composition that includes (A) a polyacetal base resin, (B) an inorganic powder having an average particle diameter of 50 micometers or less, and a particle diameter distribution such that at least 95 percent of the particles have a diameter of 100 micrometers or less and (C) a fatty acid ester. The wear parts are particularly useful for slidable parts such as guide roller or guide pole.

Abstract: A guide wire for a catheter having a body portion comparatively high in rigidity and a distal end portion comparatively flexible.At least portions of the body portion and the distal end portion are formed of a super-elastic metallic member. At least portions of inner core portions on the body portion's side and on the distal end portion's side, both of which are coated by a plastic, are formed of the super-elastic metallic member, and at least a portion of the inner core portion on the distal end portion's side is made smaller in cross-section than the inner core portion on the body portion's side.In consequence, the catheter can be reliably and readily introduced to a predetermined position.

Abstract: A thermoplastic resin composition comprises (A) 99.9 to 60 parts by weight of a thermoplastic polyester or a polyacetal, (B) 0.05 to 20 parts by weight of a silicone oil having a viscosity of 150,000 cSt or larger and (C) 0.05 to 20 parts by weight of a lubricating oil having a viscosity of 3,000 cSt or smaller and is improved in durability to abrasion.

Abstract: A self-lubricating wear part is formed of a thermoplastic resin composition which exhibits improved durability to abrasion. The resin composition includes a thermoplastic polyester resin or polyacetal resin in an amount between 99.9 to 80.0 parts by weight, and a silicon oil having a viscosity of 150,000 cSt or more in an amount between 0.1 to 20 parts by weight.