Matches 1 - 50 out of 104 1 2 3 >
Match Document Document Title
7600623 Inclusion of an anti-drain valve in viscous fan clutches  
A viscous fluid clutch assembly used in automobiles, SUVs, and trucks minimizes flow back of the cooling fluid from the reservoir towards the working chamber of the clutch when the vehicle is at...
7455158 Viscous fluid coupling device  
A viscous fluid coupling device includes: a plate that divides a housing into a reservoir chamber and an operation chamber; communication holes that are provided in the plate and communicate the...
7044282 Clutchless viscous fan drive wherein input member serves as the body and the cover carries seal  
A clutchless viscous fan drive system is formed in which the body of the fan drive is attached directly to the input shaft and rotates at full input speed. A seal is pressed into the cover at the...
6679365 Viscous Fluid Coupling  
A viscous fluid coupling includes a housing rotatably supported to a drive shaft of an engine. An operation plate set in the housing divides a space of the housing into a reservoir and an operation...
6530748 Enhanced fan and fan drive assembly  
A fan drive assembly including a cooling fan ( 11 ) and a fluid coupling device ( 13 ). The cooling fan includes a fan hub ( 17 ), a spider ( 15 ), and a plurality of fan blades ( 19 ). The...
6336538 Fluid coupling  
A fluid coupling includes an operation plate for defining storage and working chambers in a housing and having a communicating hole for fluid communication between the two, a driven wheel arranged...
6220416 Temperature sensing fan drive with fluid coupling  
A temperature-sensing, variable-speed fan drive with a fluid coupling filled with working fluid, for cooling two stacked heat exchangers, namely an engine cooling-system radiator and an...
6085881 Fluid coupling device and anti-drain back structure therefor  
A fluid coupling device having an input coupling member (11) disposed within an operating chamber (33), and operable to transmit torque to an output coupling assembly including a body (15) and a...
5996755 Temperature sensitive decoupling method for viscous fan drives  
A fluid coupling device of the type including an external bimetal coil (45) operable to move a valve arm (41) from a closed position (FIG. 4) toward an open position (FIG. 5) as the external...
5855265 Low disengage speed fan clutch  
A clutch includes an input element with an engaged input shaft and clutch plate rotatable in concert. The clutch plate has an annular portion with a clutch plate set of lands and grooves mating...
5853074 Viscous fluid coupling  
A viscous fluid coupling which includes an input member having a rotatable shaft and a rotor secured to the shaft is disclosed. The viscous fluid coupling further comprises an output member...
5839558 Viscous fan clutch with engage port lock  
A clutch includes an input shaft with a clutch plate engaged with the input shaft to rotate in concert therewith. The clutch plate has an annular disk portion with a clutch plate set of lands and...
5803221 Viscous fluid clutch  
A viscous fluid clutch includes a housing rotatably mounted to a drive shaft and a clutch plate attached to the drive shaft. These relatively rotatable members have a fluid shear space therebetween...
5593013 Fluid coupling for an engine  
A fluid coupling for an engine includes a shaft, a housing rotatably supported on the shaft, a cover fixed to the housing, a separation plate which separates a chamber defined by the housing and...
5509516 Viscous fluid coupling  
A viscous fluid coupling includes a labyrinth device for transmitting rotational torque from an input member to an output member through viscous fluid and a temperature sensing bi-metal spiral...
5330040 Ringed cover and seal for a viscous fluid clutch and method of making  
A viscous fluid clutch includes a cover having an airflow ring. The airflow ring can be formed integrally with or separately from the cover. Concentric inner and outer walls are attached to each...
5257686 Viscous fluid coupling device  
A viscous fluid coupling device is comprised of (1) an input member, (2) a rotor secured to the input member, (3) an output member having therein an inner space and mounted rotatably on the input...
5248018 High temperature disengaging fluid coupling  
A fluid coupling device is described of the type defining a fluid chamber divided by a valve plate (29) into a fluid operating chamber (31) and a fluid reservoir chamber (33). The valve plate...
5237965 Fluid coupling for a cooling fan of an internal combustion engine  
A fluid coupling of a cooling fan is for an internal combustion engine in an automotive vehicle and comprises labyrinth grooves defined by circular projections formed on a drive disc and a driven...
5139125 Temperature sensitive type fluid fan coupling apparatus  
Herein disclosed is a temperature sensitive fluid type fan coupling apparatus which comprises: a sealed container including a casing and a cover, a partition dividing the inside of the sealed...
5119921 Baffle wall for a cover of a viscous fluid clutch and method  
A viscous fluid clutch includes an internally-mounted pump plate for separating a working chamber from a reservoir. Discharge ports in the pump plate permit fluid flow from the reservoir to the...
5113987 Fluid return channels for a cover of a viscous fluid clutch  
A viscous fluid clutch includes an internally-mounted pump plate for separating a working chamber from a reservoir. Fill openings in the pump plate permit fluid flow from the reservoir to the...
5111923 Ramped clutch plate for a viscous fluid clutch  
A viscous fluid clutch includes a clutch plate rotatably driven by an input shaft. The clutch plate includes a plurality of concentric, annular lands and grooves in a rear face which are mated with...
5070981 Fluid coupling  
A fluid coupling includes a valve unit for reducing working fluid introduced into a labyrinth-groove to adjust a ratio of a rotation speed of a cooling fan to that of an internal combustion engine,...
5070980 Viscous fluid coupling  
There is disclosed a thin and inexpensive viscous fluid coupling used to control the rotational speed of a fan for cooling an automotive engine. The coupling comprises a shaft, a housing rotatably...
5062514 Insulating retainer for a viscous fluid clutch  
A viscous fluid clutch having a bimetallic coil includes an insulating retainer. A body of the retainer is mounted between the coil and an outer surface of the clutch housing. A flexible tab on the...
5022507 Anti-flowback check valve for a viscous fluid clutch  
A viscous fluid fan clutch assembly for a vehicle includes an internally-mounted pump plate for separating a working chamber from a reservoir. A plurality of discharge orifices are provided in the...
5014836 Fan drive clutch for internal combustion engine  
A fan drive clutch is provided which includes a fluid coupling for coupling a drive shaft and a clutch housing on which a fan for blowing air to a radiator is disposed. This clutch has a pump plate...
4998607 Fluid coupling having damped bimetallic spring  
A fluid coupling includes a casing supported by a drive shaft, a cover fixed to the casing to form a chamber, a partition plate fixed to the cover to partition the chamber into a reservoir and an...
4995494 Pressure-responsive fluid check valve and method for viscous fluid clutch  
A viscous fluid fan clutch assembly for a vehicle includes an internally-mounted pump plate for separating a working chamber from a reservoir. A plurality of pressure-sensitive fluid check valves...
4979601 Viscous fluid coupling with reduced scatter  
A viscous fluid coupling has a rotor including peripheral teeth with distal ends closely facing an inside surface of an output member. The distal ends of the teeth form flat surfaces parallel with...
4974712 Fluid coupling device and improved valving therefor  
A fluid coupling device is disclosed of the type including a valve plate (31) separating the fluid chamber into an operating chamber (33) and a reservoir chamber (35). The valve plate defines first...
4969920 Internal airflow check valve and method for a viscous fluid clutch  
A viscous fluid fan clutch assembly for a vehicle includes an internally-mounted pump plate for separating a working chamber from a reservoir. At least one fluid gate is provided in the pump plate...
4960191 Preloaded control arm for a viscous fluid clutch  
A preload control arm for controlling fluid flow through a viscous fluid clutch includes a rotatable control shaft mounted in the clutch. The control arm is secured to the control shaft so that...
4958709 Integrally formed wiper and orifice for a pump plate of a viscous fluid clutch  
A fan clutch assembly for a vehicle includes a rotatable pump plate for separating a collecting chamber and a pumping chamber from a reservoir. The pump plate includes at least one wiper integrally...
4949825 Fluid coupling device having improved temperature responsiveness  
A rotary fluid coupling device is provided of the type including a first rotatable coupling assembly (13) comprising a housing member (15) and a die cast cover member (17). An input coupling member...
4938328 Floating wiper for a pump plate of a viscous fluid clutch  
A floating wiper assembly mounted on a pump plate of a viscous fluid clutch includes a spring secured at its first end to a pump plate. A wiper formed from a low-friction material is secured to a...
4924987 Pump plate assembly for a viscous fluid clutch  
A fan clutch assembly for a vehicle includes a pump plate assembly for separating a receiving chamber from a reservoir, wherein the receiving chamber receives fluid from a shear zone. The pump...
4924985 Dual face wiper for a viscous fluid clutch  
A fan clutch assembly for a vehicle includes a pump plate for separating a collecting chamber and a receiving chamber from a reservoir. The pump plate includes a plurality of orifices for...
4924984 Quick pump-out clutch plate for a viscous fluid clutch  
A fan clutch assembly for a vehicle includes a clutch plate rotatably driven by an input shaft. The clutch plate includes a plurality of concentric, annular lands and grooves which are mated with...
4913273 Fluid shear coupling apparatus having a modulating valve with a movable aperture  
A fluid shear coupling apparatus including a driving member comprising a rotor mounted to a shaft. A driven member including a bearing housing is mounted to the shaft. A complementary surface...
4909368 Fluid coupling apparatus  
A fluid coupling apparatus has a three stage control for torque transmission. The apparatus has two slots, of which one slot is opened when the temperature reaches a first set temperature. The...
4907682 Viscous fluid coupling device  
A viscous fluid coupling device especially is used for driving the cooling fan of engines and for controlling the rotation speed of the fan smoothly according to the temperature. The smooth change...
4898267 Electroviscous fluid clutch  
An electroviscous fan clutch (10) is employed as an accessory drive mechanism within a truck or automobile. A shaft (36), either driven by the engine or driving a load (31), carries a clutch member...
4898266 Double element electroviscous fluid clutch  
An electroviscous fan clutch (10) is employed as an accessory drive mechanism within a truck or automobile. A shaft (36), either driven by the engine or drivig a load (31), carries a clutch member...
4880095 Viscous fluid coupling  
A viscous fluid coupling for use with a fan that cools as automobile engine includes a rotor driven by the engine. The rotor is housed in a housing formed by a case and a cover. A rear plate is...
4874071 Viscous clutch for engine cooling fan  
This viscous fluid fan drive clutch has a chamber divider and flow control ring at the face of the clutch plate which prevents fluid bypass of the shear zone and features flow blocker arms...
4850465 Temperature-sensitive fluid type fan coupling apparatus  
A temperature-sensitive fan-coupling apparatus is provided with a driving side and a driven side. The driving side comprises a tightly sealed housing. The driven side comprises a rotary member from...
4741421 Viscous clutch for engine cooling fan with improved fluid flow path control and feed to shear zone  
A viscous fan clutch having clutch and pump plates with interleaved lands to form the shear zone featuring an annular blocker ring and axial fluid feed passages radially inward of the blocker ring...
4735300 Fluid coupling device, bimetal coil and clip assembly thereof  
A fluid coupling device is disclosed of the type including a valve member (41) actuated by a valve shaft (39) extending through a cover (35), the position of the valve and valve shaft being...
Matches 1 - 50 out of 104 1 2 3 >