IP Library Granted Patent US 10,090,722
Granted Patent B2
US 10,090,722 · App. 14/532,352 · Granted Oct 2, 2018

Rotating machinery with three-phase armature windings and first and second parallel windings

Inventors: Jun Yoshida (Tokyo, JP); Kazuhiko Takahashi (Yokohama, JP); Norihito Yanagita (Yokohama, JP); Shigeki Tounosu (Yokohama, JP)
Assignee: Mitsubishi Hitachi Power Systems, Ltd.
H02K3/12H02K3/14H02K3/28
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Quick Facts
Patent No.
US 10,090,722
App. No.
14/532,352
Granted
Oct 2, 2018
Kind
B2
Abstract

Rotating machinery of the invention includes a 2n-pole rotor, 72n slots, and three-phase armature windings (n≥1). Each of the slots houses a top coil on an inner radius side of the slots and a bottom coil on an outer radius side thereof. Each of the armature windings is formed by connecting the top and bottom coils and has 2n phase belts per phase. Each of the phase belts includes a first parallel winding and a second parallel winding. The top and bottom coils are formed by arranging the first and second parallel windings in a predefined order when a circumferential mean position of all top coils and bottom coils in each of the phase belts is defined as a phase belt center and an arrangement of the first and second parallel windings in at least one phase belt is viewed in an order of proximity to the phase belt center.

Claims (7)

1. Rotating machinery comprising a 2n-pole rotor, 72n slots, and three-phase armature windings, where n denotes an integer not less than 1, wherein:

each of the slots houses a top coil on an inner radius side of each of the slots and a bottom coil on an outer radius side thereof;

each of the armature windings is formed by connecting the top coil and the bottom coil and has 2n phase belts per phase;

each of the phase belts includes a first parallel winding and a second parallel winding;

the top coil and the bottom coil are formed by arranging the first and second parallel windings in a predefined order when a circumferential mean position of all top coils and bottom coils included in each of the phase belts is defined as a phase belt center and an arrangement of the first and second parallel windings in at least one phase belt is viewed in an order of proximity to the phase belt center;

the first and second parallel windings are arranged in an order of the first, second, second, first, first, second, first, second, second, first, second, and first parallel windings in the top coil or the bottom coil; and

the first and second parallel windings are arranged in an order of the first, second, second, first, second, first, first, second, first, second, second, and first parallel windings in the bottom coil connected to the top coil or the top coil connected to the bottom coil.

Assignments (5)
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2024
From: MITSUBISHI HEAVY INDUSTRIES, LTD.
To: MITSUBISHI GENERATOR CO., LTD.
Reel/Frame 069438/0941 →
NUNC PRO TUNC ASSIGNMENT Recorded Sep 11, 2023
From: MITSUBISHI POWER, LTD.
To: MITSUBISHI HEAVY INDUSTRIES, LTD.
Reel/Frame 064854/0880 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVING PATENT APPLICATION NUMBER 11921683 PREVIOUSLY RECORDED AT REEL: 054975 FRAME: 0438. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded May 26, 2023
From: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
To: MITSUBISHI POWER, LTD.
Reel/Frame 063787/0867 →
CHANGE OF NAME Recorded Jan 13, 2021
From: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
To: MITSUBISHI POWER, LTD.
Reel/Frame 054975/0438 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2014
From: YOSHIDA, JUN; TAKAHASHI, KAZUHIKO; YANAGITA, NORIHITO; TOUNOSU, SHIGEKI
To: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Reel/Frame 034099/0038 →
Priority Claims (1)
JP 2013-231090 · Nov 7, 2013 · national
Continuity (1)
Related Publication 20150123508A1 · May 7, 2015