Facet Enterprises, Inc.

William A Carleton

Michael L Mower

Harry W Moore, Iii

Gary Richard Packard

David L Williams

James R Locker

A wet motor gerotor pump has an armature including first and second shaft ends. The outlet housing has a bore with a bushing mounted therein for positioning the second shaft end and for rotatably supporting the second shaft end, the bushing has an exterior periphery with a raised portion extending circumferentially thereabout and radially away from the second shaft end portion, the raised portion being in contact with the bore to permit the pivoting of the armature shaft axis thereat in response to an axial alignment of the first shaft end portion; and anti-rotation means coupling the bushing and the outlet housing to prevent circumferential rotation of the bushing relative to the housing while permitting the second shaft end to rotate within the bushing.

Wet motor gerotor fuel pump with self-aligning bearing

A wet motor pump has an armature located in a motor chamber. A shaft bushing with an internal bore rotatably supporting a shaft end portion of an armature shaft is located in an outlet housing having a bore and a bushing support for receiving the shaft bushing. The bushing, end portion of the armature shaft, the internal bore as well as an end wall passage of the outlet housing structure defines an end chamber wherein are provided an end chamber inlet passage and an end chamber outlet passage for communicating the end wall passage and the wet motor chamber. A pressure differential structure establishes a pressure differential between the end chamber inlet passage and the end chamber outlet passage, to cause a fluid flow into the end chamber inlet passage, to cool and lubricate the shaft bushing, and therefrom out of the end chamber outlet passage forming a cooling and lubrication system.

Wet motor fuel pump with fuel flow through the bearing for cooling

A coupling arrangement is disclosed for establishing a rotary connection between an axially movable armature element and a rotary drive hub, which transmits torque from the hub into the armature while allowing limited axial movement of the armature against an axial spring force exerted by the coupling arrangement. The coupling arrangement includes a series of circumferentially extending leaf springs, each having one end pinned to the armature and the other riveted to the hub. The circumferential pattern of the spring links is such that each link overlies other spring links in the series to enable the length of the spring link to be great enough to insure adequate flexibility of the links to accommodate axial movement of the armature, while enabling a sufficient number of the spring links to be disposed about the armature and hub axis to adequately transmit the torque through the clutch unit.

Coupling arrangement for an electromagnetic clutch

An electromagnetically operated engine cooling fan drive assembly is disclosed having a configuration particularly suited for retrofit applications, including a central shaft adapted to be mounted to an existing fan drive flange to be driven thereby. The fan is mounted on a fan hub member rotatably mounted on the central shaft, with a temperature responsive electromagnetic clutch arrangement controlling drive to the fan hub which arrangement includes an inner body keyed to the central shaft, an armature connected by spring connection to the fan hub, and a fixed electromagnetic coil energized by a temperature switch at high engine temperatures and adapted to urge the armature into clutching engagement with the inner body and cause the fan to be rotated. A number of design features are described: an axially compact mounting of the fan hub to enable positioning of the fan within existing shrouding; the fan hub also encloses the magnetic clutch elements to shield the same against the entrance of dirt and other contaminants; special locking tabs which, in the event of electrical failure, can be positioned to mechanically lock together the inner body and fan hub; the inner body and armature do not support the fan in order to reduce the incidence of failure of these elements; an adjustable anti-rotation arm is provided restraining the magnetic coil body against rotation; the magnetic clutch may be assembled and disassembled on the engine allowing a more compact assembly and convenient repairs; a special fan hub bearing washer retainer is described that is locked to the central shaft insuring that bearing failure will not cause rotation of an end bolt which secures the fan hub on the central shaft.

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Pine City, NY, United States of America

William A Carleton