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US 2008/0173513 A1Published application
Electronically controlled fluid coupling device with fluid scavenge control and enhanced cooling
AssigneeBorg-Warner Corporation
InventorRick L. Boyer
Life of this patent
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Abstract
A viscous fan drive with a front-mounted fan and electrical actuation without a tethered harness. The mechanical package includes an inverted viscous clutch, a drive pulley, a split electromagnetic actuator with the electrical portion mounted to a stationary mounting member. Enhanced cooling can be provided with breather openings in the pulley, breather slots in the body member, and fins in the reservoir.
Claims15
A fluid coupling device comprising:
- an output member;
- an input member rotating about and engageable with said output member, said input member rotating at an input speed;
- a working chamber disposed between and at least partially defined by said input member and said output member;
- and
- a pulley member attached to said input member;
- said output member engageable with said input member through reception of fluid within said working chamber;
- said pulley member having at least one opening to allow cooling air to pass through and assist in cooling said input member.
4 more elements
Dependencies are inferred from the claim text.