IP Library Granted Patent US 7,243,629
Granted Patent B2
US 7,243,629 · App. 11/390,409 · Granted Jul 17, 2007

Hydraulic valve lifter assembly

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Quick Facts
Patent No.
US 7,243,629
App. No.
11/390,409
Granted
Jul 17, 2007
Kind
B2
Abstract

A hydraulic valve lifter assembly including a lifter body and a cam follower. The cam follower is mounted to an end of the lifter body wherein the lifter body has a first diameter over a first body portion for engaging a wall of an engine bore. The lifter body also including a second diameter smaller than the first diameter over a second body portion supportive of the cam follower. The hydraulic valve lifter assembly further including a contiguous annular transitional chamfer between the first and second diameter portions of the lifter body.

Claims (9)

1. A hydraulic valve lifter assembly, comprising:

a lifter body including a first body portion and a second body portion, said first body portion including a first diameter for engaging a wall of an engine bore, said second body portion extending from an end of said first body portion and including a second diameter that is smaller than said first diameter,

a cam follower mounted within said second diameter; and

an annular transitional chamfer extending between said first and second body portions of said lifter body.

2. A hydraulic valve lifter assembly in accordance with claim 1 , wherein a groove is formed in said second body portion of said lifter body.

3. A hydraulic valve lifter assembly in accordance with claim 2 , wherein said cam follower is rotatably positioned within said groove.

4. A hydraulic valve lifter assembly in accordance with claim 1 , further comprising an axle rotatably mounting said cam follower to said second body portion.

5. A hydraulic valve lifter assembly in accordance with claim 4 , wherein said cam follower is rotatably positioned within a groove formed in said second body portion of said lifter body.

6. A hydraulic valve lifter assembly in accordance with claim 1 , wherein said cam follower is a roller.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Apr 15, 2011
From: THE BANK OF NEW YORK MELLON
To: DELPHI CONNECTION SYSTEMS HOLDINGS LLC; DELPHI PROPERTIES MANAGEMENT LLC; DELPHI TECHNOLOGIES, INC.; DELPHI AUTOMOTIVE SYSTEMS LLC; DELPHI CONNECTION SYSTEMS LLC; DELPHI CORPORATION; DELPHI HOLDINGS LLC; DELPHI INTERNATIONAL SERVICES COMPANY LLC; DELPHI MEDICAL SYSTEMS LLC; DELPHI TRADE MANAGEMENT LLC
Reel/Frame 026138/0574 →
SECURITY AGREEMENT Recorded Nov 13, 2009
From: DELPHI TECHNOLOGIES, INC.
To: BANK OF NEW YORK MELLON, AS ADMINISTRATIVE AGENT, THE
Reel/Frame 023510/0562 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2006
From: SPATH, MARK J.
To: DELPHI TECHNOLOGIES, INC.
Reel/Frame 017734/0132 →