Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2001-09-27
2003-12-16
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S209000, C310S112000, C310S113000
Reexamination Certificate
active
06664694
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
This rotor axial activation modulation of electric machinery due to centrifugal force is to reveal, between the electric machinery rotating shaft and the electric machinery rotor or between the electric machinery rotor and the stator, or between the electric machinery rotating shaft and the stator, there is installed a centrifugal pulling mechanism FCD
100
that can pull the electric machinery rotor to produce axial displacement, and there is installed an axial pre-stressed spring SP
100
which exhibit regression during deceleration and optionally there is installed an axial position limiting structure D
100
to the electric machinery rotating shaft, such that during the operation of the electric machinery and depending on the speed of the electric machinery rotor, the electric machinery rotor can be pulled to produce corresponding axial displacement, and further to modulate the electric machinery characteristics with respect to the electromagnetic field.
(b) Description of the Prior Art
Among the rotating electric machinery products sold in the market there are electric machinery structures combining the cone shape rotor and cone hole electric machinery magnetic field. When activated the axial electromagnetic attraction force will drive the axial, normally closed activation mechanism. Its function is to act as the axial driving power source to control the normally closed activation mechanism. However, its electric machinery characteristic remains singular.
SUMMARY OF THE INVENTION
This invention is regarding the rotating electric machinery to which between the electric machinery rotating shaft and the electric machinery rotor, or between the electric machinery rotor and the stator, or between the electric machinery rotating shaft and the stator, there is installed an axial pulling structure due to the centrifugal force and an axial pre-stressed spring, and optionally installed an axial position limiting structure to the electric machinery rotating shaft, and depending on the speed of the electric machinery rotor, the corresponding axial displacement of the electric machinery rotor can be controlled, and further the electric machinery characteristics between the electric machinery rotor and the electromagnetic field can be modulated.
REFERENCES:
patent: 4102444 (1978-07-01), Palme
patent: 4308462 (1981-12-01), McMillen
patent: 4492906 (1985-01-01), Goto et al.
patent: 4920295 (1990-04-01), Holden et al.
patent: 2002/0117922 (2002-08-01), Kim et al.
patent: 2002/0117926 (2002-08-01), Joong et al.
Bacon & Thomas PLLC
Lam Thanh
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