Abstract: An electronically-controlled viscous fan drive in which the output drive to the fan is electronically controlled by the movement of viscous fluid from a fluid reservoir and into the operating and working chamber of the coupling during normal operation. A radially balanced valve disk coupled to a spring controls the relative movement of viscous fluid from a fluid reservoir to the working chamber by sealingly engaging and disengaging a fill hole fluidically coupling the fluid reservoir to the working chamber. The clutch plate and cover and body, along with the features defined between the clutch plate and cover and body are cast to the desired size and shape, therein allowing easier and more precise manufacturing and more cost effective manufacturing as compared with traditional designs that are stamped and having machined-in features.

Abstract: An electronically-controlled viscous fan drive having a one-piece accumulator and reservoir located on the top side of the clutch. The accumulator also has a low pressure and high pressure fill hole for allowing movement of viscous fluid from the reservoir to a anti-bleedback chamber and into the operating and working chamber of the coupling during normal operation. A radially balance valve disk having a step up feature coupled to a spring and an actuator electronically controls movement of viscous fluid from the reservoir to the anti-bleedback chamber through the fill holes by energizing or deenergizing the spring based on engine operating conditions. The valve disk may be a one-piece or two-piece design. The accumulator is designed to prevent morning sickness associated with the flow of viscous fluid from the reservoir to the operating chamber during engine off situations.

Abstract: An electronically-controlled viscous fan drive having a one-piece accumulator and reservoir located on the top side of the clutch. The accumulator also has a low pressure and high pressure fill hole for allowing movement of viscous fluid from the reservoir to a anti-bleedback chamber and into the operating and working chamber of the coupling during normal operation. A radially balance valve disk having a step up feature coupled to a spring and an actuator electronically controls movement of viscous fluid from the reservoir to the anti-bleedback chamber through the fill holes by energizing or deenergizing the spring based on engine operating conditions. The valve disk may be a one-piece or two-piece design. The accumulator is designed to prevent morning sickness associated with the flow of viscous fluid from the reservoir to the operating chamber during engine off situations.

Abstract: A noise suppressor for engagement over a cable or ribbon, has a pair of ferrite core halves held in a pair of case halves which are closed around the cable or ribbon. The noise suppressor has a pair of case portions made of resilient material, each case portion having opposite side walls and a floor for defining a space with an open top for receiving a ferrite portion, and ends for passing the conductor. Hinges and latches or latches only hold the case portions together in a closed position around a conductor with the open tops of the case portions facing each other. Ferrite portions are in each case portion, each ferrite portion having a channel and at least one face. The faces engage each other and the channels merging when the case portions are in the closed position for passage of the conductor through the channel. A raised platform on the floor of each case portion is made as one piece with the case portion and extends into the space and into engagement of the ferrite portion.

Abstract: A noise suppressor for permanent engagement over a cable comprises first and second case halves which are connected to each other by a hinge. At least one female latch tab is mounted to the first case half near an interior surface of the first case half and a male latch tab is mounted on an interior surface of the second case half. With the first and second case halves closed over a cable, the male and female latch tabs are locked to each other and are inaccessible from outside the case. The case may not be opened except by destroying the case. End walls of the case portions have recesses for passage of the cable therethrough and each case portion contains a suppressor core having a passage for receiving the cable.

Abstract: A high frequency noise suppressor for engagement around a cable comprises a pair of case halves made of nylon or other rugged synthetic material which can be snapped around a cable in clam shell like fashion. A ferrite core half is positioned in each case half for defining a ferrite core member around the cable. Each case half has opposite end walls with semicircular recesses. A plurality of triangular fingers extend into each recess and are positioned at a slight angle outwardly with respect to an interior of each case half. The fingers have truncated apexes for defining a small opening in each recess. If a cable which is larger than the small opening is to be engaged by the suppressor, the fingers bend outwardly on opposite sides of the case for firmly engaging the cable. This resists relative movement between the closed case and the cable in either direction along the cable.

Abstract: An electromagnetic shielding device includes a continuous metallic strip having a plurality of fingers defining spaces therebetween, and a base portion including a plurality of segments which are arranged so as to securely mount the shielding device in a channel having a linear or irregular configuration.