Hitachi, Ltd.

Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Hitachi Car Engineering Co., Ltd.

Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd.

Kazuo Ojima

Noboru Baba

Kenichi Nakayama

Tomohiro Fukuda

Hiroyuki Yamada

Yukio Takahashi

Hisaya Shimizu

Hideki Machimura

Shin Onose

Katsuyoshi Terakado

Masayoshi Kotaki

Shizuka Yamaguchi

Arata Kagiyama

Tatsuhiko Oshino

Teruo Tanaka

Naoki Hamanaka

Shigeo Nagashima

Masayuki Kobayashi

Shinji Yamazaki

Atsuji Saito

Hiroatsu Tokuda

Koichiro Omoda

Katsuhiro Komuro

Junji Nakagoshi

Mitsuaki Mirumachi

Masaya Takahashi

Kouji Harada

Motoo Kitahara

Yoshinobu Ono

Tetsuo Udagawa

Hiroshi Matahira

Masamichi Kase

Masahiro Mokuo

Shogo Sawada

Toshiaki Nagayama

Dai Nakamura

Toshikatsu Akiyama

Daisuke Hiranuma

Provided is a rotor capable of improving the reliability of a connection between a lead conductor and a terminal member. A stator includes a winding wound around a stator core and having a lead conductor at an end thereof, and a terminal member having a connection portion to the lead conductor of the winding. The connection portion of the terminal member includes a winding-side connection portion that fixes the lead conductor, and a leading-end-side connection portion that fixes a portion closer to a leading end of the lead conductor than the winding-side connection portion.

Stator, rotary electric machine, and manufacturing method for stator

Provided are a rotary-electric-machine stator coil, a rotary-electric-machine stator having the same, and a rotary electric machine having the same, capable of improving a bonding strength and insulation reliability of a conductor bonding portion. A rotary-electric-machine stator coil includes: a conductorhaving a bonding portionbonded to other conductors; and a bonding memberhaving a melting point lower than a melting point of the conductor, wherein a tip of the bonding portion has an alloy layerformed of an alloy of the conductor and the bonding member, and a root of the bonding portion is electrically connected by the bonding member.

Rotary-electric-machine stator coil, rotary-electric-machine stator having the same, and rotary electric machine having the same

Provided is a stator for a rotating electric machine equipped with a connection terminal having high manufacturability and vibration resistance; also provided is a rotating electric machine equipped with this stator. The stator, which is for a rotating electric machine equipped with a stator coil, is equipped with a connection terminal. The connection terminal has a crimping part to which stator coil input/output coil conductors are connected, and a fastening part which is mechanically connected to an external mechanism, with a melt material arranged on the fastening part. The input/output coil conductors are configured so as to be connected to the connection terminal, with the melt material provided on the crimping part therebetween.

Stator for rotating electric machine, rotating electric machine equipped with same, and manufacturing methods therefor

A rotating electric machine having downsized coil ends is provided. In a rotating electric machine having a statorincluding a stator coreformed with a plurality of slotsrowed in a circumferential direction and a stator coilinserted into the slots of the stator core, and a rotordisposed rotatably with respect to the stator core with a clearance interposed therebetween. The stator coil is formed by a plurality of segment coilsbeing connected, the segment coilsbeing made of a conductor shaped into a rough U-shape and having a rectangular cross-section. The segment coil has at an end a connection portionconnected to another segment coil, the connection portion having a corner portion

Rotating electric machine including a stator with a connection portion having a corner portion and method for manufacturing same

The purpose of this invention is to achieve an electric air flow control device comprising a motor rotor bearing structure having excellent wear resistance even with loads from striking caused by a high vibrational environment specific to an internal combustion engine. A cylindrical sintered metal slide bearing is used in at least one of a front bearing () and a rear bearing () that support a rotor shaft () of a motor () that is the rotary control drive source of a throttle valve () that controls the intake air flow to an internal combustion engine, and the bearing design is such that the relationship of the radial crushing strength and the compressive deformation rate of the cylindrical sintered metal bearing has the mechanical properties of a maximum radial crushing strength of 230 N/mm2 or greater and a maximum compressive deformation rate of 3.5% or greater at the maximum radial crushing strength.

Electric air flow control device for internal combustion engines

A heat sink board having a first heat sink and a second heat sink with a smaller linear expansion coefficient than that of the first heat sink and being bonded to the first heat sink to form the heat sink board. The second heat sink is fitted to the first heat sink, and a material of the first heat sink in the vicinity of a boundary between the fitted heat sinks is plastically deformed for close adhesion to the second heat sink. A forming method makes bonding between the first and second heat sinks possible at room temperature, and the heat sink board made of a composite member having a high flat-surface accuracy can be easily and reliably obtained.

Heat sink board and manufacturing method thereof

Disclosed herein is a fuel pump for an inter-cylinder direct fuel injection apparatus, in which occurrence of corrosion and attrition caused by cavitation or erosion can be suppressed, their resistance against the environment can be improved, and an excellent lifetime can be achieved in the case of the use of an aluminum material even if the temperature reaches as high as 100&#xb0; C. or higher and the pressure reaches as high as 7 to 12 MPa. In the fuel pump for an inter-cylinder direct fuel injection apparatus, made of aluminum or an aluminum alloy, a coating film plated with Ni&#x2014;P or a Ni&#x2014;P based material is formed by electroless plating.

Fuel pump for inter-cylinder direct fuel injection apparatus

A fuel pump, of which sliding mechanism parts in its fuel chamber have good wear resistance under a severe environment, and a direct fuel injection engine using the fuel pump are provided. In a fuel pump for pressurizing and delivering fuel to a fuel injector of a vehicle engine, at least one of sliding surfaces of a slant plate, a slipper and a plunger sliding in a lubricating oil and at least one of sliding surfaces of sliding members of a plunger and a cylinder contacting with and sliding on each other through the fuel are formed of a hardened layer composed of any one of a nitrided layer, a carburization quenched layer and a carbonitrided layer, or coated with a high corrosion resistant and hard metal compound layer over the hardened layer.

Fuel pump and direct fuel injection engine

A turbocharger for an internal combustion engine, in which a bearing having excellent abrasion resistance without generating a black corrosion product in a high-temperature oil environment is provided. As bearing materials of a turbocharger, a copper alloy material containing, as main components, Cu, Zn, Al, Mn, and Si is employed. The elongating direction of an Mn&mdash;Si compound crystallized in the alloy material is set to the axial direction of a rotary shaft with respect to a radial bearing and is set to the direction perpendicular to the rotary shaft with respect to a thrust bearing.

Turbo-charger for internal-combustion engine

In a fuel pump pressurizing fuel and supplying the fuel to a fuel injection valve of a vehicle engine, a hardened layer of at least one selected from a nitride layer, a carburated and quenched layer and a carbonitrided layer, and a metal compound layer, on a surface of the hardened layer, higher in corrosion resistance than the hardened layer are formed on one of slide surfaces contacting each other and sliding in fuel.

Fuel pump, in-cylinder direct injection type internal combustion engine using the same and surface treatment method

A turbocharger for an internal combustion engine having a housing wall member located on an inner periphery of a metal compressor housing and facing a curved profile portion of the compressor impeller. The housing wall member is separately formed of a resin such as polyphenylene sulfide and integrally held and secured to the compressor housing.

Turbocharger for internal combustion engine

A turbocharger for an internal combustion engine, for improving the turbocharger efficiency by manufacturing a compressor housing by a non-expensive method excellent in productivity, has a structure that a housing wall member located on an inner periphery of a compressor housing metal portion and facing to a curved profile portion of a compressor impeller is separately formed by, for example, PPS resin-forming, and integrally held and secured by a screw member engaging with a screw hole provided in the housing metal portion.

A computer comprising a circuit for writing a group of ordered data elements onto the main storage; a circuit for reading said group of data from the main storage; and a circuit which is connected to the writing circuit and to the reading circuit, and which ensures the sequence of main storage references between said writing circuit and said reading circuit such that said reading circuit will not read the data elements that have not yet been written by said writing circuit among said group of data elements.

Computer for synchronized read and write of vector data

A control system for a turbocharger of an internal combustion engine, with the control system adapted to control a turbocharger having a turbine bypass valve in dependence upon a differential pressure between a turbo charging pressure supplied to a first pressure chamber and an atmospheric pressure supplied to a second pressure chamber. A pressure detecting device detects the turbocharging pressure, and pressure control valves shift the atmospheric pressure into the first pressure chamber of the pressure device and the pressure existing between a throttle valve of the engine and the compressor of the turbocharger in the second pressure chamber thereof, when the turbocharging pressure is less than a preset value.

Turbocharger control system for use in internal combustion engines

Growing community of inventors

Hitachinaka, Japan

Kazuo Ojima