Coolant And Clutching Medium Patents (Class 192/58.64)
  • Electro-hydraulic pressure control fan drive system with electrical failure mode operation
    Patent number: 8607745
    Abstract: A fan drive system is provided that is hydraulically controlled having an electrical failure mode wherein midrange operation of the fan drive system is maintained. Accordingly, in the failure mode, a fan drive system hydraulic relief valve is not closed thereby ensuring a degree of operation of the fan drive system even during periods of electrical failure.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: December 17, 2013
    Assignee: BorgWarner Inc.
    Inventors: Theodore A. Malott, Jr., Joshua L. Roby
  • Heat exchanger and method of manufacturing
    Patent number: 8033321
    Abstract: A heat exchanger comprising at least one pipe (1) and at least one lamina (2), for exchanging heat between a first coolant that flows through the pipe (1) and a second coolant that wets the heat exchanger under the influence of centrifugal forces in order to be cooled and to be available to further cool a rotating machine element (3) that is situated in a housing (4). The heat exchanger is of approximately ring-shaped design, essentially surrounds the rotating machine element (3) and is integrated into the housing (4).
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: October 11, 2011
    Assignees: Schaeffler Technologies GmbH & Co. KG, Modine Manufacturing Company
    Inventors: Viktor Brost, Rainer Kaesinger, Ivo Agner, Oliver Noehl, Johannes Arnold
  • MECHANICAL SLIP FAILSAFE SYSTEM FOR A HEAVY DUTY MULTI-SPEED FAN CLUTCH
    Publication number: 20100089717
    Abstract: A failsafe system for a heavy-duty multi-speed clutch includes a thermal valve coupled within a clutch pressure tube orifice circuit protecting a clutch pack from heat degradation. When oil temperature of the clutch reaches a level where thermal degradation can occur, the thermal valve allows flow into a clutch piston system at a maximum operating pressure, thereby engaging a clutch drive and cooling the clutch to a safe condition.
    Type: Application
    Filed: December 22, 2007
    Publication date: April 15, 2010
    Applicant: BORGWARNER INC.
    Inventors: Dale M. Pickelman, Theodore A. Malott