Abstract: A driven accessory that includes an input member, a cover, an output member, a clutch and a clutch actuator. The input member is rotatable about an axis and has a hub, an outer rim, and a radially extending web that couples the hub to the outer rim. The cover is coupled to the input member for common rotation about the axis and cooperates with the input member to define a clutch cavity. The clutch is received in the clutch cavity and selectively transmits rotary power between the input member and the output member. The clutch actuator is selectively operable to change the operational state in which the clutch operates. The clutch actuator has an electromagnetic coil that is disposed outside the clutch cavity. The hub is disposed along the axis between the clutch and the electromagnetic coil.

Abstract: A driven accessory that includes an input member, a cover, an output member, a clutch and a clutch actuator. The input member is rotatable about and axis and has a hub, an outer rim, and a radially extending web that couples the hub to the outer rim. The cover is coupled to the input member for common rotation about the axis and cooperates with the input member to define a clutch cavity. The clutch is received in the clutch cavity and selectively transmits rotary power between the input member and the output member. The clutch actuator is selectively operable to change the operational state in which the clutch operates. The clutch actuator has an electromagnetic coil that is disposed outside the clutch cavity.

Abstract: A solenoid assembly having a solenoid core, coil and flux plate. The flux plate has inner and outer ring members connected by connecting members. A stop member with a ledge is used to selectively prevent an armature member from coming into contact with the flux plate.

Abstract: A pulley member, particularly for an electromagnetically controlled friction clutch in an accessory drive assembly. The pulley member has two mating metal cup members bonded together with a central hub member. Through-hole slots or openings are provided in each of the cup members to provide a break in magnetic flux. A non-magnetic insert member is positioned between the cup members covering the through-holes and sealing them from contamination from environmental factors. The pulley member can be used with vehicle engine accessories such as water pumps and cooling fans.

Abstract: A solenoid assembly having a solenoid core, coil and flux plate. The flux plate has inner and outer ring members connected by connecting members. A stop member with a ledge is used to selectively prevent an armature member from coming into contact with the flux plate.

Abstract: A pulley member, particularly for an electromagnetically controlled friction clutch in an accessory drive assembly. The pulley member has two mating metal cup members bonded together with a central hub member. Through-hole slots or openings are provided in each of the cup members to provide a break in magnetic flux. A non-magnetic insert member is positioned between the cup members covering the through-holes and sealing them from contamination from environmental factors. The pulley member can be used with vehicle engine accessories such as water pumps and cooling fans.

Abstract: A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152) coupled within the housing assembly (20) that receives at least a portion of the hydraulic fluid (48). An engaging circuit (36) engages the housing assembly (20) to a fan shaft (44) in response to supply of the hydraulic fluid (48) from the pitot tube (152). An electrical control circuit (40) having a relief valve assembly (225) coupled to a main controller (176) is used to control the fluid pressure within the pitot tube (152) that controls the engagement of the housing assembly (20).

Abstract: A method for communicating information to a caller on a telephone network is herein proposed. The method includes the steps of (a) generating a signal suitable for producing an audible dial tone, (b) transmitting the signal to the receiver of a telephone set, when the caller initially takes the receiver off-hook, to thereby produce the audible dial tone, and (c) superimposing an audible information message over the audible dial tone while the audible dial tone is produced. The audible information message may, for example, be a branding-type message that identifies a provider of local telephone service to a caller. The audible information message may be superimposed over the audible dial tone in a whisper-like or low-decibel manner to avoid interfering with modems that operate on a “wait for dial tone” (WFDT) basis.