Water pump for vehicle
AssigneeAisin Seiki Kabushiki Kaisha
InventorAtsutoshi IKEGAWA
Life of this patent
Estimating the term…
Abstract
A water pump for a vehicle includes a power transmission member driven and rotated by an external power, a driven shaft driven to be rotatable independently from the power transmission member, an impeller, an arm member which includes a pressing portion pressing the power transmission member and which is contactable to the power transmission member for transmitting a rotation of the power transmission member to the driven shaft, a control member controlling the arm member so that the arm member and the power transmission member come in contact with each other or come out of contact from each other and so that a contact state between the arm member and the power transmission member is variable, and a biasing member biasing the arm member toward the power transmission member.
Claims19
A water pump for a vehicle, comprising:
- a power transmission member driven and rotated by an external power;
- a driven shaft driven to be rotatable independently from the power transmission member;
- an impeller to which a rotation of the driven shaft is transmitted;
- an arm member including a pressing portion which presses an inner circumferential surface of the power transmission member and being contactable to the power transmission member for transmitting a rotation of the power transmission member to the driven shaft;
- a control member controlling the arm member so that the arm member and the power transmission member come in contact with each other or come out of contact from each other and so that a contact state between the arm member and the power transmission member is variable;
- and
- a biasing member provided at the control member for biasing the arm member toward the power transmission member, wherein
- the control member changes a rotational phase between the power transmission member and the arm member so that the arm member and the power transmission member come in contact with each other or come out of contact from each other and so that the contact state between the arm member and the power transmission member is controlled.
A water pump for a vehicle, comprising:
- a power transmission member driven and rotated by an external power;
- a driven shaft driven to be rotatable independently from the power transmission member;
- an impeller to which a rotation of the driven shaft is transmitted;
- an arm member for transmitting a rotation of the power transmission member to the driven shaft;
- a pressing portion provided on the arm member and positioned to face an inner circumferential surface of the power transmission member;
- a control member controlling the arm member;
- and
- a biasing member biasing the arm member toward the power transmission member, wherein
- the biasing member allows the inner circumferential surface of the power transmission member and the pressing portion to come in contact with each other when the arm member is under no control of the control member and wherein
- the biasing member allows the inner circumferential surface of the power transmission member and the pressing portion to come out of contact from each other when the arm member is under a control of the control member.
Dependencies are inferred from the claim text.