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Match Document Document Title
7619338 Brushless AC generator for use in automotive vehicle  
A brushless AC generator is mounted on a vehicle such as a truck, a farming vehicle or a construction vehicle. The generator is composed of a housing, stator fixedly contained in the housing, a...
7608973 Dynamoelectric rotor  
A resin bobbin is mounted to a pole core by fitting a body portion thereof over first and second boss portions. A rotor coil is configured by winding a conducting wire onto the bobbin, and an...
7605519 Dynamoelectric machine  
A magnet seat is disposed on a second yoke portion and projects into respective spaces between circumferentially-adjacent pairs of second claw-shaped magnetic pole portions, and permanent magnets...
7605518 Rotary electric machine for vehicles  
An on-vehicle rotary electric machine, such as AC generator, is provided. The machine comprises a rotary shaft, a pole core, plural magnetic poles, plural permanent magnets, and plural holding...
7605511 Vehicular alternator and method of producing the same  
In a vehicular alternator having a permanent magnet protection mechanism, each magnet holder of a non-magnetic characteristic if a rectangle prism shape accommodates each permanent magnet disposed...
7602095 Automotive tandem alternator having reduced axial length and capable of effectively suppressing magnetic leakage  
According to the invention, a tandem alternator includes a rotary shaft, a first and a second field arranged in tandem on the rotary shaft, and a first and a second armature arranged in tandem in...
7592735 Alternator having Lundell type rotor  
A Lundell type rotor of an alternator has a pole core disposed on an outer side of a field coil in a radial direction of the rotor, and a non-magnetic claw pole joint ring. The pole core has claw...
7589449 Electric rotating machine  
The electric rotating machine includes a rotor and an armature. The rotor consists of a cylindrical part having a field winding and a claw-pole shaped magnetic pole part. A magnetic short-circuit...
7583005 Electric machine rotor pole piece with anti coil rotation  
The apparatus disclosed herein relates to a pole piece for an electric machine comprising, a pole piece with a finger support structure, a plurality of fingers having an axial component of...
7573175 Tandem AC generator for vehicle  
In a tandem AC generator for a vehicle having dual armature core-Lundel type field core pairs placed in series, an intermediate ring as a cylindrical spacer is placed between the dual armature...
7569968 Rotor for vehicular electric rotary machine, vehicular electric rotary machine using such rotor and related manufacturing methods  
A rotor for a vehicular electric rotary machine, a vehicular electric rotary machine using such a rotor, a method of manufacturing a rotor of a vehicular electric rotary machine and a method of...
7564156 Vehicle-use tandem electric rotating machine  
The vehicle-use tandem electric rotating machine includes a first stator-rotor pair, a second stator-rotor pair, and a controller individually controlling a first field current flowing into a first...
7560851 Dynamoelectric machine and manufacturing method therefor  
A dynamoelectric machine includes: a permanent magnet holding portion that is disposed integrally so as to project from the yoke portion on a portion of the pair of yoke portions that faces an...
7545074 Rotor for automotive alternator having improved magnet holder  
According to the invention, there is provided a rotor for a rotating electrical machine which includes a rotary shaft, a pair of first and second pole cores fixed on the rotary shaft, a plurality...
7525233 Vehicle alternator  
A vehicle alternator has a rotor having plural claw poles and a stator placed at the outer circumference of the surface of the rotor. Plural grooves are formed in a specified rear area on a surface...
7520148 Drum type washing machine  
In one aspect, a drum type washing machine includes, among other things, a tub supporter of metal between a wall of a tub and a stator, where the stator includes an annular helical type core having...
7514837 Brushless alternator  
A brushless alternator includes: a rotor mounted on a shaft; a ring-shaped yoke which is opposed to the rotor via a very narrow radial clearance; a stepped portion provided on a side surface of an...
7420314 Alternating-current dynamoelectric machine  
An alternating-current dynamoelectric machine according to the present invention includes: a stator including: a stator core in which slots that extend in an axial direction are formed on an inner...
7420313 Tandem type rotary generator generating two voltages  
A tandem type rotary generator has a rotary shaft, and two power generating sections disposed adjacent to each other along an axial direction. Each power generating section has a Lundell type rotor...
7420312 Rotating electrical machine  
Provided is a rotating electrical machine including an armature core on which an armature winding is wound; a rotor core which is supported by a rotation axis at a predetermined air gap in an inner...
7417355 Vehicular tandem type rotary electric machine  
A vehicular tandem type rotary electric machine is disclosed having first and second stator cores 23, 33 having first and second circumferentially spaced slots to accommodate therein first and...
7417350 Dynamoelectric claw-shaped rotor with magnet retainer  
Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion...
7414342 Rotor of rotating electric machine and method of assembling rotor of rotating electric machine  
A magnet-mounting member for holding permanent magnets against side faces of each claw-shaped magnetic pole has pairs of extreme-end and basal-end hooking tabs for preventing displacement of the...
7408280 Rotor of rotary electric machine  
A Lundell type rotor core with a pair of side cores and a magnetic-pole cylindrical portion has a structure in which the magnetic-pole cylindrical portion is mated between both the side cores (also...
7405502 Motor and washing machine including the same  
Provided are a motor and a washing machine using the motor. The motor has a stator, a rotor, a rotor frame, a permanent magnet, and a comb polarizing ring. The rotor rotates against the stator. The...
7400076 Rotating electric machine and method and device for positioning rotational position sensor for the machine  
The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for...
7397159 Rotary electric apparatus with skew arrangement  
A rotary electric apparatus comprises a rotor including a first and second rotor members, a stator including a first stator and second stator members with armature coils to which armature current...
7397157 Tandem rotary electric machine  
A tandem rotary electric machine, to be applicable to various types of mobile bodies such as vehicles, is equipped with a primary rotary electric machine and a secondary rotary electric machine...
7392581 Method for manufacturing a magnetic element  
A plate member includes a frame portion ( 51 ) provided in a state of coupling both one end portion and other end portion and mounting terminal portions ( 44 ) protruding from the one end portion...
7365472 Electric generator  
An electric generator 10 of the present invention comprises a permanent magnet 14 , a coil 30 , a yoke 20 , and attracted means 19 composed of a plurality of attracted pieces 18 which are...
7365471 Internal cooling fan with a non-repeating blade configuration  
An internal cooling fan assembly for use with a claw-pole segment of a rotor assembly is provided that maximizes air flow while providing a reduced sound signature. The fan assembly includes a base...
7358642 Dynamoelectric rotor  
A field coil is housed inside a coil housing space of a pole core, and an annular body that is made of an insulating resin is fixed to a portion of a shaft that projects outward at a first end of...
7339294 Vehicular starting and charging rotary electric machine  
A vehicular starting and charging rotary electric machine includes a rotor, a stator, brackets, a brush, and a rotation detection sensor. The rotor has a field winding. The stator has a stator...
7276833 Electromagnetic retarder system and method  
An electromagnetic retarder system is disclosed. In one embodiment, the retarder system comprises: a shaft; a coil statically disposed on the shaft and having a hollow cylindrical shape; a yoke...
7274121 Systems and methods for fastening internal cooling fans to claw-pole electro-mechanical machines  
Methods, systems, and articles of manufacture for fastening internal cooling fans to claw-pole segments are provided. A claw-pole segment suitable for use in a rotor of an electro-mechanical...
7227339 Power generation controller of vehicle power generator  
The present invention relates to a power generation controller of a vehicle power generator, which includes: voltage detection means for sampling a voltage of a battery based on a reference clock...
7211922 Rotor for rotating electric machine  
The present invention provides a dynamoelectric rotor enabling electromagnetic noise to be reduced by linking a facing tip end portion and root end portion of adjacent claw-shaped magnetic poles by...
7208856 Electric rotating machine  
Claw-shaped magnetic poles are alternately disposed along the rotation plane of a rotor of an electric rotating machine, and a permanent magnet is disposed between the claw-shaped magnetic poles....
7170206 Method for the production of a rotor for an electric turning machine  
The invention proposes a method of making a rotor ( 12 ) for a rotary electrical machine, the rotor including a core ( 14 ) on which there is formed at least one electrical winding ( 16 )...
7135803 Dynamoelectric rotor having permanent magnets disposed between adjacent claw-shaped magnetic poles  
The dynamoelectric rotor according to the present invention, includes: a rotor coil; a first pole core body and a second pole core body respectively having: first and second cylindrical portions on...
7109630 Electric rotating machine and manufacturing process thereof  
In an electric rotating machine, a rotor can be manufactured relatively easily at reasonable cost without high working accuracy for pole cores, and a permanent magnet can be assembled without...
7105978 Rotor of electric rotating machine  
Leakage of a magnetic flux from inside diameter face of claw magnetic poles is reduced to improve output, and deformation and vibration of the claw magnetic poles are reduced. A rotor includes: a...
7095154 Generator motor for vehicles  
It is an object of the invention to obtain a generator motor for vehicles that can increase generated power or generated torque by a special positioning of permanent magnets in gaps between...
7095145 Rotating electric machine and method and device for positioning rotational position sensor for the machine  
The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for...
7067954 Automotive rotary electric machine  
First and second permanent magnets are each disposed between circumferentially-adjacent pairs of first and second claw-shaped magnetic pole portions so as to contact a circumferential side surface...
7067951 Copper-graphite brush  
A copper-zinc alloy powder of which zinc content is from 10 to 50 wt % and of which mean particle diameter is from 15 μm or under is added to a Pb-less brush body comprising graphite, copper and a...
7064466 Brushless rotary electric machine having tandem rotary cores  
A brushless rotary electric machine includes a stator having an annular armature core with first radial teeth at the outer periphery thereof and second radial teeth at the inner periphery thereof...
7057327 Vehicular alternator  
A vehicular alternator is provided which can effectively utilize the magnetic flux of a permanent magnet disposed between claw-type magnetic poles and can improve an output of the alternator. The...
7057315 Automotive alternator having cooling fan coupled to rotor shaft  
An alternator for use in an automobile includes a stator supported between a front housing and a rear housing, and a rotor connected to a rotor shaft and rotatably supported inside the stator. A...
7053518 Rotor for dynamo-electric machine  
The invention provides a rotor for a dynamo-electric machine which is capable of reducing deformation of magnetic poles due to centrifugal force or noise generated by vibrations without...
Matches 1 - 50 out of 362 1 2 3 4 5 6 7 8 >