US 6,617,727 B2Granted

Vehicular rotational apparatus

AssigneeKabushiki Kaisha Toyota Jidoshokki

InventorsJiro Iwasa, Taku Adaniya, Yasuharu Odachi, Takeshi Kawata, Kazuhiko Minami, Kazuo Murakami, Hirohito Hayashi

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Abstract

A housing of a compressor supports a rotary shaft. The rotary shaft is coupled to a pulley with a pulley one-way clutch and is coupled to a rotor of an electric motor with a motor one-way clutch. The pulley is supported by the housing with a pulley bearing. The electric motor overlaps a power transmission portion in the axial direction of the rotary shaft. At least two of the bearing, the pulley one-way clutch, the motor one-way clutch, and a brush device of the electric motor overlap each other in the axial direction of the rotary shaft. As a result, the size of the compressor is reduced in the axial direction of the rotary shaft.

Claims33

Dependent claims

A rotational apparatus that is driven by an external drive source, the rotational apparatus comprising:

a housing;
a rotary shaft supported by the housing;
a first rotary body operably connected to the rotary shaft, wherein the first rotary body includes a power transmission portion, and wherein, when power is transmitted from the external drive source to the power transmission portion, the first rotary body is rotated;
an electric motor for driving the rotary shaft, wherein the electric motor includes a second rotary body, which is operably connected to the rotary shaft, a commutator, which is located on the second rotary body, and a brush device, which contacts the commutator, and wherein the electric motor overlaps the power transmission portion in the axial direction of the rotary shaft;
a bearing located between the first rotary body and the housing, wherein the first rotary body is supported by the housing with the bearing;
a first one-way clutch located between the first rotary body and the rotary shaft;
and
a second one-way clutch located between the second rotary body and the rotary shaft, wherein at least two of the bearing, the first one-way clutch, the second one-way clutch, and the brush device overlap each other in the axial direction of the rotary shaft.

5 more elements

A rotational apparatus that is driven by an external drive source, the rotational apparatus comprising:

a housing;
a rotary shaft supported by the housing;
a first rotary body operably connected to the rotary shaft, wherein the first rotary body includes a power transmission portion, and wherein, when power is transmitted from the external drive source to the power transmission portion, the first rotary body is rotated;
an electric motor for driving the rotary shaft, wherein the electric motor includes a second rotary body, which is operably connected to the rotary shaft, a commutator, which is located on the second rotary body, and a brush device, which contacts the commutator, and wherein the electric motor overlaps the power transmission portion in the axial direction of the rotary shaft;
a bearing located between the first rotary body and the housing, wherein the first rotary body is supported by the housing with the bearing;
and
a one-way clutch located between the first rotary body and the rotary shaft, wherein at least two of the bearing, the one-way clutch, and the brush device overlap each other in the axial direction of the rotary shaft.

4 more elements

A rotational apparatus that is driven by an external drive source, the rotational apparatus comprising:

a housing;
a rotary shaft supported by the housing;
a first rotary body operably connected to the rotary shaft, wherein the first rotary body includes a power transmission portion, and wherein, when power is transmitted from the external drive source to the power transmission portion, the first rotary body is rotated;
an electric motor for driving the rotary shaft, wherein the electric motor includes a second rotary body, which is operably connected to the rotary shaft, wherein the electric motor overlaps the power transmission portion in the axial direction of the rotary shaft;
a bearing located between the first rotary body and the housing, wherein the first rotary body is supported by the housing with the bearing;
a first one-way clutch located between the first rotary body and the rotary shaft;
and
a second one-way clutch located between the second rotary body and the rotary shaft, wherein at least two of the bearing, the first one-way clutch, and the second one-way clutch overlap each other in the axial direction of the rotary shaft.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/303,424Filed 25 Nov 2002
Priority: JP 2001-36463529 Nov 2001
Published: US 2003/0098624 A129 May 2003
Granted: 9 Sep 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F04B 35/04
Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or…:…
B60H 1/3222
Using compression: characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
F04B 27/0895
Component parts, e.g. sealings; Manufacturing or assembly thereof: driving means
F04B 35/002
Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or…:…