The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2001
Filed:
Mar. 14, 2000
Alan R. Davis, Plainwell, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
In a transmission inertia brake a ball ramp mechanism is used to load a clutch pack to slow a rotating transmission shaft where the clutch pack is carried on a one piece drive assembly having a gear section for meshing with a transmission gear, an extension section for engaging a thrust plate in an isolator assembly, a clutch section for engaging plurality of driven clutch plates in the clutch pack and a bearing section for rotational support within a brake housing. An armature having an angled peripheral surface engages a mating friction surface formed in an end plate to form a core clutch, the armature being magnetically pulled upon energization of an electrical coil. The armature is nonrotatably connected to the control ring of the ball ramp mechanism through at least one connecting pin. Belleville washers are used to apply an axial load on the ball ramp mechanism. A gerotor oil pump provides a cooling lubricant through the clutch pack in the ball ramp mechanism. A clutch cavity is sealed for maintaining oil contact with the clutch cavity and is at least partially defined by the drive assembly. The clutch cavity is further defined by an oil blocking ring.