Jason D Mcconnell

US Patent:

62166778, Apr 17, 2001

Filed:

Sep 10, 1999

Appl. No.:

9/393538

Inventors:

Jason J. McConnell - Jackson MI
David W. Deppe - Marshall MI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

F02M 2504
F02M 2507

US Classification:

12356824

Abstract:

An exhaust gas recirculation (EGR) assembly (23) for an internal combustion engine, including an EGR valve (54) having a valve stem (55) reciprocating within a housing (61), between open (FIG. 3) and closed positions. Preferably, the EGR assembly is mounted on the exhaust manifold (15), and the EGR valve can communicate exhaust gas back to the intake manifold (13) in a known manner. The EGR assembly includes an electric motor (41), and a gear train (65) to move the EGR valve (54) in response to changes in an electrical input signal. A plurality of power electronic components (97) are disposed within a controls housing (91), which defines a slot (99) in face-to-face relation to a cooling chamber (81) defined by the housing (61) surrounding the valve stem (55). The cooling chamber (81) and the slot (99) cooperate to define a coolant passage, and the valve stem (55) and the power components (97) are in close proximity to the coolant passage, thus permitting the use of less expensive electrical components, rated for relatively lower temperatures.

US Patent:

56973330, Dec 16, 1997

Filed:

Feb 20, 1997

Appl. No.:

8/803339

Inventors:

Kynan L. Church - Ceresco MI
Keith Hampton - Ann Arbor MI
Jason J. McConnell - Jackson MI
Brian K. Van Deusen - Augusta MI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

F01L 1300

US Classification:

123 9016

Abstract:

A valve control system for an internal combustion engine including a poppet valve (21) and high lift (15) and low lilt (31) cam lobes. A latchable rocker arm includes an outer rocker arm (33) and an inner rocker arm (35), and a slider mechanism (37) which is biased by a spring (67) to the high lilt mode (FIG. 1). An actuator assembly (27) includes and arm (103) biased by a spring (101) into engagement with the slider (37), biasing the slider toward the unlatched (low lift) mode (FIG. 2 ). The actuator (27) includes an electromagnetic coil (83) which moves an armature (87) into engagement with the arm (103), biasing the arm in opposition to the force of the actuator spring (101), but aided initially by the force of the slider spring (67).