Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2000-06-14
2001-10-23
Ramirez, Nestor (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
06307288
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a motor, particularly to one having increased sucking force and enhancing smoothness of sucking and guiding and its service life.
A conventional motor shown in
FIG. 1
is used for sucking in gas or liquid, including an outer housing
10
and a bottom cap
11
containing the components of the motor between them. The outer housing
10
has a water outlet
100
extending out from a rear end, and the bottom cap
11
has many small water inlets
111
in the bottom. The motor
1
includes an inner housing
12
and a base
13
for positioning other components between them. A starter
14
is fixed behind the inner housing
12
to transmit power to the motor
1
, which further includes a stator
15
positioned in the inner housing
12
and the base
13
to produce electromagnetic induction, and a rotor
16
positioned in a center hollow of the stator
15
to be rotated by the electromagnetic induction produced by the stator
15
. The rotor
16
has a shaft
161
extending forward from the rotor
16
and passing through the center of the base
13
outward. The shaft
161
has threads
162
formed in a front end. Further, the motor
1
has a guider
17
fixed on the front end of the shaft
161
with a nut
171
engaging the threads
162
.
The operating principle of the conventional motor utilizes the starter
14
to transmit electric current to the stator in the inner housing
12
and the base
13
so that the stator may produce electromagnetic induction to rotate the rotor
16
and the shaft
161
and then the guider
17
to produce sucking force for gas or liquid entering the water inlet
111
and guided by the outer housing
10
to flow out of the water outlet
100
.
As understood from the aforesaid description, the conventional motor has the following disadvantages.
(1) The load for the motor is increased as there is a bent flowing passageway between the outer housing and the motor body when gas or liquid flows through sucked by the guider.
(2) High temperature produced by the motor cannot be exhausted out as it is contained in the outer housing, nor carried away by the sucked gas or liquid, shortening the service life of the motor and easily causing the components getting out of order.
The water inlet consists of many small holes, which are liable to be clogged in gas or liquid flowing, and the dimensions for sucking is too small to have good effect.
SUMMARY OF THE INVENTION
The objective of the invention is to offer a motor having a strong sucking force, increasing smoothness of flowing of gas or liquid and prolonging the service life of the motor.
The feature of the invention is a rotor having a center lengthwise water passageway and positioned in a stator, so when the stator rotates the rotor, a guider having plural helical leaves in its interior also rotates to produce sucking force for gas or liquid current. And a pressure-dividing ball is additionally placed at a front end of the guider divides strong pressure of gas or liquid current into several small pressures so as to strengthen flowing smoothness of sucked gas or liquid current. And the rotor can carry away heat produced in operating of the motor by means of flowing gas or liquid current through the water passageway in the rotor and the shaft, effectively prolonging the service life of the motor.
REFERENCES:
patent: 2993449 (1961-07-01), Harland
patent: 4212601 (1980-07-01), Ina
Addison Karen
Dougherty & Troxell
Ramirez Nestor
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