IP Library › Granted Patent US 12,331,676
Granted Patent B2
US 12,331,676 · App. 18/610,690 · Granted Jun 17, 2025

Alternator

Inventors: Ryo Watanabe (Toyota, JP); Toshiyuki Yano (Nagakute, JP); Hisao Fukuhara (Okazaki, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
F02B67/06F16H7/02
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Quick Facts
Patent No.
US 12,331,676
App. No.
18/610,690
Granted
Jun 17, 2025
Kind
B2
Abstract

An alternator includes a body portion, a rotating shaft, a pulley, a belt, and a retaining member fixed to the body portion and reducing or eliminating the possibility of the pulley coming off the rotating shaft, wherein the retaining member is located away from the rotating shaft and the pulley in an axial direction of the rotating shaft and opposed to the rotating shaft and the pulley, and a width of the belt in the axial direction is smaller than a width of the pulley in the axial direction, and a distance of the retaining member and the belt in the axial direction is equal to or greater than a width of the pulley in the axial direction, and a distance of the retaining member and the rotating shaft in the axial direction is smaller than a width of the pulley in the axial direction.

Claims (13)

1. An alternator comprising:

a body portion;

a rotating shaft rotatably mounted in the body portion;

a pulley fixed to the rotating shaft;

a belt wrapped around the pulley and configured to cooperate with a crankshaft of an engine; and

a retaining member fixed to the body portion and configured to reduce or eliminate a possibility of the pulley coming off the rotating shaft, wherein:

the retaining member is located away from the rotating shaft and the pulley in an axial direction of the rotating shaft and faces the rotating shaft and the pulley;

a width in the axial direction of the belt is smaller than a width in the axial direction of the pulley;

a distance in the axial direction between the retaining member and the belt is equal to or greater than the width in the axial direction of the pulley; and

a distance in the axial direction between the retaining member and the rotating shaft is smaller than the width in the axial direction of the pulley.

2. The alternator according to claim 1 , wherein:

the distance in the axial direction between the retaining member and the rotating shaft is smaller than a distance in the axial direction between the retaining member and the pulley; and

the distance in the axial direction between the retaining member and the rotating shaft is equal to or greater than the width in the axial direction of the belt.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2024
From: WATANABE, RYO; YANO, TOSHIYUKI; FUKUHARA, HISAO
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 066840/0604 →
Priority Claims (1)
JP 2023-122529 · Jul 27, 2023 · national
Continuity (1)
Related Publication 20250035036A1 · Jan 30, 2025
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