Pratap Srinivasa Murthy from 3078 Fieldstone Dr, Four Mile Lk, MI 48130, age 46, Phone: 2692671599

Pump Actuator Anti-Rotation Device
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US Patent:

20120152187, Jun 21, 2012
Filed:

Dec 13, 2011
Appl. No.:

13/324804
Inventors:

Doug R. Cornett - Hurdle Mills NC, US
John Page Chapman - Richland MI, US
Gary Lynn Janowiak - Saginaw MI, US
Daniel A. Nelson - Kalamazoo MI, US
Mark E. Jacobs - Roxboro NC, US
Brent L. Rehm - Nashville MI, US
Pratap S. Murthy - Ann Arbor MI, US
Anthony Leon Spoor - Union City MI, US
James Roy Sheren - Grand Ledge MI, US
Assignee:

EATON CORPORATION - Cleveland OH
International Classification:

F01L 1/14
B23P 15/00
US Classification:

123 905, 2988843
Abstract:

A tappet having a contiguous body, an outer wall and transverse web. The outer wall defines a cylindrically-shaped outer surface and a recess. The recess is disposed within cylindrical surface of the body. An alignment member is press-fit between two staked ends of the recess, which engage opposite sides of the alignment member. The alignment member extends outwardly from the cylindrically-shaped surface. A roller is mounted to the contiguous body at the cam contacting end of the tappet.

Deceleration Cylinder Cut-Off With Sliding Cam
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US Patent:

20210372332, Dec 2, 2021
Filed:

May 29, 2020
Appl. No.:

16/887955
Inventors:

- Detroit MI, US
Michael A. Smith - Clarkston MI, US
Amanda Keech - Waterford MI, US
Pratap S. Murthy - Dexter MI, US
Jason M. Moore - Linden MI, US
International Classification:

F02D 13/06
F01L 1/053
F01L 13/00
F02D 33/00
F02D 41/00
F02D 13/02
Abstract:

An automobile vehicle overhead camshaft system includes multiple camshafts individually having multiple sliding camshaft barrels. Opposed ends of the camshaft barrels individually have a zero-lift lobe. Multiple intake valves are operated by a first one of the camshafts and multiple exhaust valves are operated by a second one of the camshafts. Multiple actuators operate during a deceleration cylinder cut-off (DCCO) mode to slidably displace the camshaft barrels to position the zero-lift lobe of predetermined ones of the multiple sliding camshaft barrels into contact with at least one of: all of the intake valves; or all of the exhaust valves.

Cam Phaser Control Systems And Methods For Engine Off Conditions
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US Patent:

20210062690, Mar 4, 2021
Filed:

Aug 28, 2019
Appl. No.:

16/553437
Inventors:

- Detroit MI, US
Scott T. Feldmann - South Lyon MI, US
Pratap S. Murthy - Dexter MI, US
International Classification:

F01L 9/04
F02N 11/08
H02P 9/00
F01L 1/34
Abstract:

A control system of a vehicle includes: an electric motor configured to phase rotation of an camshaft of an engine relative to rotation of a crankshaft of the engine; a current module configured to, while the engine is off: selectively transition a current signal back and forth between a first state and a second state; and a motor driver module configured to, while the engine is off: apply power to the electric motor from a battery and adjust a position of the camshaft toward a predetermined position when the current signal is in the first state; and disconnect the electric motor from the battery and allow the position of the camshaft to move away from the predetermined position when the current signal is in the second state.