 Fixing structure for coil assembly and power-steering device |
| The present invention was designed in the light of the above described problems with prior-art ... |
|
| Torque sensor |
| In view of the foregoing, an object of the present invention is to provide a torque sensor which ... |
|
| Alternator fan |
| OF THE INVENTION FIG. 1 illustrates an automotive alternator rotor and stator assembly, shown ... |
|
| Integral motor and control |
| What is claimed is: 1. A refrigeration system comprising a compressor, a refrigerant carrying ... |
|
| Inner stator of drum type motor |
| In the winding engineering in the prior art motor, if the winding is arranged linearly, more space ... |
|
| Alternator |
| Accordingly, the present invention has been made with a view toward solving the problems described ... |
|
| Motor core and motor using the same |
| The present invention reduces the cycle of the cogging torque produced due to a basic configuration ... |
|
| Method and system for sensing switch position to prevent inadvertent startup of a motor |
| A method and system in accordance with an aspect of the invention prevents inadvertent startup of a ... |
|
| Disk-type single-phase brushless motor |
| What is claimed is: 1. A disk-type single-phase brushless motor, comprising a rotor supported for ... |
|
| Disk clamping assembly for a low profile disk drive apparatus |
| Accordingly, an object of the present invention is to provide a disk drive apparatus which has ... |
|
|
Coaxial engine starter with hollow shaft clutch
| Details |
Inventors: Isozumi, Shuzoo; Tanaka, Toshinori;
Assignee: Mitsubishi Denki Kabushiki Kaisha (JP)
Primary Examiner: Salce; Patrick R.
Assistant Examiner: Rebsch; D. L.
Attorney, Agent or Firm: Sughrue, Mion, Zinn, Macpeak & Seas
An engine starter includes an electric motor having a hollow rotary shaft for causing a turning force to start an engine, a hollow inner clutch rotatably supported in the hollow rotary shaft through a one-way clutch, a pinion shaft provided with a pinion which is engaged with a ring gear of the engine, a spline-fitted in the hollow inner clutch to move in the axial direction thereof, an electromagnetic switch attached to one end of the electric motor for turning on or off the electric motor, and a moving body which moves in conjunction with the electromagnetic switch to move the pinion shaft in the axial direction thereof to engage the pinion with the ring gear. |
|
DETAILED DESCRIPTION It is an object of the present invention to provide an engine starter which eliminates the above-described disadvantages.
It is another object of the present invention to provide an engine starter, the size and weight of which are reduced and the number of component parts of which is decreased.
It is a further object of the present invention to provide an engine starter which performs well and has an electromagnetic (EM) switch and an electric motor disposed in series with each other to make the total length of the engine starter small enough to improve the assembling property thereof to an engine.
The engine starter according to the present invention includes an electric motor having a hollow rotary shaft, a hollow inner clutch member which is supported in the hollow rotary shaft by a one-way clutch mechanism, a pinion shaft spline-fitted in the hollow inner clutch member, an EM switch attached to one end of the electric motor to turn the motor on and/or off, and a moving body, which is moved in conjunction with the action of the EM switch to move the pinion shaft.
The one-way clutch mechanism is provided in the hollow rotary shaft of the electric motor.
The pinion shaft is provided in the one-way clutch mechanism.
The pinion shaft is moved by the moving body which is moved in conjunction with the action of the electromagnetic switch.
The electric motor and the EM switch are disposed in series with each other to make the total length of the engine starter small enough to render the engine starter compact and symmetric with regard to an axis thereof.
As a result, the assembling property of the engine starter to the engine and the quality of the engine starter are good.
The engine starter according to the present invention includes a DC motor whose armature has a hollow rotary shaft provided in a cylindrical yoke constituting a flux path, a rotary output shaft supported in the hollow internal opening of the hollow rotary shaft so that the rotary output shaft is slidable in the axial direction thereof and receives a turning force from the hollow rotary shaft through an overrunning clutch mechanism, an EM switch attached to one end of the DC motor to move the rotary output shaft and apply electricity to the DC motor, and a front bracket secured to the end of the yoke opposite the EM switch when the front bracket is molded from plastic
|
| Related patents |
|
|
Apparatus for generating autogenic energy
Therefore, an object of the invention is to provide an apparatus for utilizing long-sustained autogenic energy. Another object of the invention is to provide a mode of ...
|
|
|
Method of making a brushless motor with inside mounted single bearing
The present invention relates to a brushless motor including an inside stator assembly including a support member, an outside rotor assembly, a single angular contact ...
|
|
|
Magnetic bearing for suspending a rotating shaft using high Tc superconducting material
One possible object of the present invention is therefore to refine the magnetic bearing having the features mentioned initially, such that such risk of bearing icing is ...
|
|
|
Method and apparatus for balancing rotating components of a spinstand of a magnetic head and disk tester
The present invention is directed to a method and apparatus for balancing the spinstand of a magnetic head and disk testing system. The apparatus comprises a disk ...
|
|
|
Independent clamping spacers in a disc drive assembly
The present invention is directed to an apparatus and method for improving mechanical shock resistance of a disc drive. As exemplified by preferred embodiments, a disc ...
|
|
|
Permanent magnet D.C. motor having a radially-disposed working flux gap
The present invention is addressed to d.c. motors which may be controlled in a "brushless" manner, and produced at practical cost levels commensurate with their ...
|
|
|
Asynchronous machine
In contrast, the asynchronous machine of the present invention offers the advantage that with the both reinforcement elements opening to an air gap, a magnetic inference ...
|
|
|
Torque and torsion angle measuring apparatus
We claim: 1. Torque and torsion angle measuring apparatus comprising a shaft (8) having an input end portion (7) and an output end portion (9); a first induction member (...
|
|
|
Torque sensor
Accordingly, it is an object of the present invention to provide a torque sensor having its reliability as a sensor improved by avoiding damage to a winding and a lead ...
|
|
|
Torque sensor
In view of the problems experienced with the conventional structures, a first object of the present invention is to provide a torque sensor capable of reducing the cost ...
|
|
|
Generators or Motors 
