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US 2016/0108975 A1Published application
Viscous clutch drive with electromagnetic activation and wiper on clutch disk
AssigneeBorgWarner Inc.
InventorDarin Lee Gwin
Life of this patent
Estimating the term…
Abstract
Viscous fan drive systems with wiper members positioned on the OD of the clutch disks, and which rotate at high speed. The fluid reservoir also rotates at input speed. The wiper member directs viscous fluid radially back to the fluid reservoir. The valves in the viscous fan drive systems can be activated by an electromagnetic mechanism.
Claims22
A viscous clutch drive comprising:
- a housing;
- a rotatable clutch disk member positioned in said housing;
- a working chamber comprising said housing and said clutch disk member;
- a fluid reservoir positioned on said clutch disk member and rotatable therewith;
- a wiper member located on the outer diameter surface of said clutch disk member;
- a valve member positioned in said fluid reservoir for selectively allowing viscous fluid to pass from said fluid reservoir to said working chamber;
- and
- an electromagnetic mechanism in operative connection with said valve member;
- wherein when said electromagnetic mechanism causes said valve member to move and selectively allow passage of viscous fluid to said working chamber.
6 more elements
A viscous clutch fan drive mechanism comprising:
- a housing;
- a fan member secured to said housing;
- a rotatable clutch disk member positioned in said housing, said clutch disk member rotatable at input speed;
- a working chamber comprising said housing and said clutch disk member;
- a fluid chamber member positioned on said clutch disk member and rotatable therewith;
- said fluid chamber member forming a fluid reservoir;
- a wiper member positioned on the outer peripheral surface of said clutch disk member;
- a valve member positioned in said fluid chamber for selectively allowing viscous fluid to pass from said fluid reservoir to said working chamber;
- and
- an electromagnetic mechanism in operative association with said valve member;
- wherein when said electromagnetic mechanism causes said valve member to move and allow passageway of viscous fluid to said working chamber.
8 more elements
Dependencies are inferred from the claim text.