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Counter-rotating differential electric motor assembly slip ring assembly

a technology of electric motors and components, applied in mechanical energy handling, transportation and packaging, efficient propulsion technologies, etc., can solve the problems of easy generation of harmful resonances, and achieve the effects of increasing battery life, not wasted, and increasing thrus

Pending Publication Date: 2022-07-28
CR FLIGHT L L C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technology described in this patent is a medium to large CR differential electric motor assembly that can be used to power both horizontal and vertical aircraft. It improves battery life and thrust while also being more efficient than standard motors. The motor uses a combination of added energy, lower heat production, and synergistic coupling between the two rotating members to increase their net rotational velocities and overall efficiency.

Problems solved by technology

Again, this is perfectly fine for small CR motors, but for CR motors of increased size harmful resonances are easily generated.
To position this slip ring assembly within or above the first and second rotational members (to bring the mass of the first and second rotational member and electromagnetic means closed to the mounting means) is impossible due to the oppositely rotating propellers tangling with the electrical wires.

Method used

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  • Counter-rotating differential electric motor assembly slip ring assembly
  • Counter-rotating differential electric motor assembly slip ring assembly
  • Counter-rotating differential electric motor assembly slip ring assembly

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0036]More specifically, as shown in FIGS. 1A, 1B, 1C, and 3 the subject invention 5 is shown in which a slip ring assembly is positioned above the two oppositely rotating rotational members. Generally, this embodiment includes a first rotational member that comprises both an outer portion 10 and inner portion 12 that are rotational secured by bearings 11 to a central hollow shaft 35. For clarity, “outer” refers to further away on the central hollow shaft 35 from a mounting base member 40 and “inner” refers to nearer the mounting base member 40. A propeller 15 is fastened to the outer portion 10. The illustrative propeller 15 comprises two blades, but other blade numbers (two, four, etc.) are contemplated to be within the realm of this disclosure. Electromagnetic field coils 14 are secured to the inner portion 12 of the first rotational member.

[0037]A second rotational member comprises both an outer portion 20 and an inner portion 25 that are rotational secured by bearings 26 to the...

second embodiment

[0043]the subject invention is shown in FIGS. 2A, 2B, 2C, and 4 and includes, generally, a dual propeller CR differential electric motor assembly; comprising: a central hollow shaft having first and second ends; a first rotational member, located about said central hollow shaft, that rotates in a first direction about said central hollow shaft; a first propeller secured to said first rotational member; a second rotational member, located about said central hollow shaft and either within said first and second rotational members or between said first rotational member and said second end of said central hollow shaft, that rotates in an opposite direction to said first rotational member's rotational direction and about said central hollow shaft; a second propeller secured to said second rotational member; electromagnetic field coils and permanent magnets associated with said first and second rotational members for powering, when receiving electricity via wires traveling from an exterio...

embodiment 5

[0050]FIG. 5 illustrates, for the first CR motor embodiment 5, that a preferred configuration within the slip ring assemble for the exiting disk connections / wires 65 (leading to the field coils 14) is a symmetrical arrangement within the spindle housing 45. The symmetrical arrangement of the connections / wires 65 minimizes any harmful or energy wasting rotational vibrations.

[0051]FIGS. 6 through 9 depict an alternative embodiment of the subject slip ring assembly. FIG. 6 shows the basic component of this embodiment of the slip ring assembly. The housing 45 or 145 (relative to the earlier presented versions) surrounds the various components of the slip ring assembly. The resilient means 52 or 152 in this embodiment is a crest to crest spring, which is equivalent to the individual springs shown earlier since its role is to compress the components during rotational operation. A series of three outside diameter contactors (OD contactors) 67 or 167 are shown (these are stationary and are ...

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Abstract

A rotational slip ring assembly for an improved counter-rotating (CR) differential electric motor assembly is utilized to power an aircraft vehicle or fan for moving a gas and includes two oppositely rotating propellers that may be mounted to horizontal flight and vertical lift-off aircraft or a fan housing in spaces similar in size to mounting spaces for traditional motors having only one propeller and includes a hollow central shaft and slip ring assembly that is mounted either within, slight above, or total above oppositely rotating components and around the hollow central shaft.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to, and is a 35 U.S.C. § 111(a) continuation of, PCT international application number PCT / US2020 / 047837 filed on Aug. 25, 2020, incorporated herein by reference in its entirety, which claims priority to, and the benefit of, (i) U.S. provisional patent application Ser. No. 62 / 893,293 filed on Aug. 29, 2019, incorporated herein by reference in its entirety, (ii) U.S. provisional patent application Ser. No. 62 / 993,594 filed on Mar. 23, 2020, incorporated herein by reference in its entirety, and (iii) U.S. provisional patent application Ser. 62 / 893,290 filed on Aug. 29, 2019, incorporated herein by reference in its entirety. Priority is claimed to each of the foregoing applications.[0002]The above-referenced PCT international application was published as PCT International Publication No. WO 2021 / 041435 A1 on Mar. 4, 2021, which publication is incorporated herein by reference in its entirety.STATEMENT REGARDING...

Claims

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Application Information

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IPC IPC(8): H02K13/00H02K23/60H02K7/14
CPCH02K13/003B64C11/48H02K7/14H02K23/60H02K11/33H02K2213/03H02K1/2791H02K16/005H02K7/086H02K5/1732H02K16/02B64C27/12Y02T50/60B64U50/19H02K21/22H02K5/24B64D27/24H02K7/003H02K21/24
Inventor WISHART, RANDELL J.EMIGH, JONATHAN D.EMIGH, JASONPORTER, RAY
Owner CR FLIGHT L L C