Shaft rotating double-stator multi-speed motor with curves of constant width

Patent metadata

Field	Value
Publication number	US-9347317-B2
Application number	US-201113381086-A
Country	US
Kind code	B2
Filing date	Mar 28, 2011
Priority date	Mar 29, 2010
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

Embodiments of double-stator multi-speed motor are described. In embodiments, a motor may include a rotor. The motor may further include an inner stator having a first count of oil distributing ports opened in a surface of the inner stator. The motor may further include an outer stator having a second count of oil distributing ports opened in an inner surface of the outer stator. In some embodiments, the first count is equal to the second count. Other embodiments may be described and/or claimed.

First claim

What is claimed is:

1. A motor, comprising:
a rotor;
an inner stator, mounted in the rotor, having a first count of oil distributing ports opened in a surface of the inner stator;
an outer stator, connected to the rotor, having a second count of oil distributing ports opened in an inner surface of the outer stator, wherein the first count is equal to the second count; and
a plurality of a set of sliders, each set of sliders mounted on the rotor and in contact with the surface of the inner stator and the inner surface of the outer stator,
wherein a distance between adjacent edges of two adjacent oil distributing ports in the outer stator is greater than or equal to a distance between two tangent lines formed by contacting two adjacent sets of sliders with the inner surface of the outer stator, or a distance between adjacent edges of two adjacent oil distributing ports in the inner stator is greater than or equal to a distance between two tangent lines formed by contacting two adjacent sets of sliders with the surface of the inner stator.

2. The motor according to claim 1 , wherein an oil leakage hole is formed in the rotor and connected to a leakage oil return port.

3. The motor according to claim 1 , further comprising:
a first end cover and a second end cover; and
a positioning key disposed between the inner stator and the second end cover to prevent relative rotation between the inner stator and the second end cover.

4. The motor according to claim 3 , wherein the first end cover and the second end cover are mounted on the outer stator by a plurality of fastening bolts.

5. The motor according to claim 1 , wherein an external surface of the inner stator and an internal surface of the outer stator each have an elliptical cross section profile.

6. The motor according to claim 1 , wherein the motor is a multi-speed motor based at least in part on the opening of a combination of selected one or more oil distributing ports from the first count of oil distributing ports the opening of and selected one or more oil distributing ports from the second count of oil distributing ports.

7. The motor according to claim 1 , wherein the motor is a differential motor when respective torques formed based on the opening of selected one or more oil distributing ports from the first count of oil distributing ports and the opening of selected one or more oil distributing ports from the second count of oil distributing ports are in opposite directions.

8. A motor, comprising:
a rotor;
an inner stator, mounted in the rotor, having a first count of oil distributing ports opened in a surface of the inner stator;
an outer stator, connected to the rotor, having a second count of oil distributing ports opened in an inner surface of the outer stator, wherein the first count is equal to the second count;
a plurality of a set of sliders, each set of sliders mounted on the rotor and in contact with the surface of the inner stator and the inner surface of the outer stator, wherein the length of each set of sliders varies as the rotor turns; and
a plurality of uniformly distributed sectorial cylinders, formed on a rear portion of the rotor, for mounting a plurality of sets of sliders, wherein a distance between two adjacent sectorial cylinders of the plurality of uniformly distributed sectorial cylinders is equal to a width of a set of sliders of the plurality of sets of sliders.

9. The motor according to claim 8 , wherein an oil leakage hole is formed in the rotor and connected to a leakage oil return port.

10. The motor according to claim 8 , further comprising:
a first end cover and a second end cover; and
a positioning key disposed between the inner stator and the second end cover to prevent relative rotation between the inner stator and the second end cover.

11. The motor according to claim 10 , wherein the first end cover and the second end cover are mounted on the outer stator by a plurality of fastening bolts.

12. The motor according to claim 8 , wherein an external surface of the inner stator and an internal surface of the outer stator each have an elliptical cross section profile.

13. The motor according to claim 8 , wherein the motor is a multi-speed motor based at least in part on the opening of a combination of selected one or more oil distributing ports from the first count of oil distributing ports the opening of and selected one or more oil distributing ports from the second count of oil distributing ports.

14. The motor according to claim 8 , wherein the motor is a differential motor when respective torques formed based on the opening of selected one or more oil distributing ports from the first count of oil distributing ports and the opening of selected one or more oil distributing ports from the second count of oil distributing ports are in opposite directions.

15. A motor, comprising:
a rotor;
an inner stator, mounted in the rotor, having a first count of oil distributing ports opened in a surface of the inner stator;
an outer stator, connected to the rotor, having a second count of oil distributing ports opened in an inner surface of the outer stator, wherein the first count is equal to the second count;
a plurality of a set of sliders, each set of sliders mounted on the rotor and in contact with the surface of the inner stator and the inner surface of the outer stator;
a first washer mounted at a first end of a sectorial cylinder of the rotor; and
a second washer mounted at a second end of the sectorial cylinder of the rotor.

16. The motor according to claim 15 , wherein the first washer is circular, with a sectorial hole to fit the sectorial cylinder; and the second washer is also circular, with another sectorial hole to fit the sectorial cylinder.

17. The motor according to claim 15 , wherein an oil leakage hole is formed in the rotor and connected to a leakage oil return port.

18. The motor according to claim 15 , further comprising:
a first end cover and a second end cover; and
a positioning key disposed between the inner stator and the second end cover to prevent relative rotation between the inner stator and the second end cover.

19. The motor according to claim 18 , wherein the first end cover and the second end cover are mounted on the outer stator by a plurality of fastening bolts.

20. The motor according to claim 15 , wherein an external surface of the inner stator and an internal surface of the outer stator each have an elliptical cross section profile.

21. The motor according to claim 15 , wherein the motor is a multi-speed motor based at least in part on the opening of a combination of selected one or more oil distributing ports from the first count of oil distributing ports the opening of and selected one or more oil distributing ports from the second count of oil distributing ports.

22. The motor according to claim 15 , wherein the motor is a differential motor when respective torques formed based on the opening of selected one or more oil distributing ports from the first count of oil distributing ports and the opening of selected one or more oil distributing ports from the second count of oil distributing ports are in opposite directions.

23. A motor, comprising:
a rotor;
an inner stator, mounted in the rotor, having a first count of oil distributing ports opened in a surface of the inner stator;
an outer stator, connected to the rotor, having a second count of oil distributing ports opened in an inner surface of the outer st

Assignees

• Wen Desheng
• Univ Yanshan

Inventors

• Wen Desheng

Classifications

• F01C19/085

  Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines · CPC title

• F01C21/10

  Outer members for co-operation with rotary pistons; Casings (casings for rotary engines or machines in general F16M) · CPC title

• F04C2240/52

  for assemblies with supports on both sides · CPC title

• F01C21/108

  with an axial surface, e.g. side plates · CPC title

• F01C11/002

  of similar working principle · CPC title