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US 2014/0101909 A1Published application
Injector sleeve removal tool
AssigneeWhitaker Tools, Inc.
InventorTony Whitaker
Life of this patent
Estimating the term…
Abstract
A tool for removing an injector sleeve from the cylinder head of a diesel engine between the rocker arms while the head remains mounted to the engine block within the vehicle. The devices includes a tap having a longitudinal body and a threaded cutting head at one end. A drive member comprises a bolt having a head at one distal end. An extraction nut is threaded onto the threaded shaft of the drive member followed by a bearing surface member such as a spacer. A hollow cylinder or support sleeve having an internal diameter greater than the injector sleeve to be removed and an external diameter less than the diameter of the sleeve bore includes a shoulder member.
Claims3
An injector sleeve removal tool comprising:
- a tap with a nut welded to a non-threaded end thereof;
- a bolt with a loose nut threaded thereon and a flat washer slipped thereon;
- said bolt with said nut threaded thereon and said washer slipped thereon tightly threaded into said nut welded onto said non-threaded end of said tap;
- a hollow cylinder whose inner diameter is larger than the outer diameter of an injector sleeve to be removed and whose length is at least as long as said tap and welded nut combination but short enough to allow said tap section to penetrate and cut at least three threads into said injector sleeve;
- and
- a load bearing washer between said loose nut and said hollow cylinder.
3 more elements
An injector sleeve installation tool comprising:
- an outer approximately cylindrical shell having a circular aperture formed in a first end thereof, said circular aperture and said internal threads coaxial with said approximately cylindrical shell, internal threads adjacent to said circular aperture, the second end of said outer approximately cylindrical shell having at least three parallel longitudinal fingers being parallel to an axis of said outer approximately cylindrical shell, said three fingers separated by at least there longitudinal slits reaching from said second end to a distance of about half a length of said outer approximately cylindrical shell, said at least three fingers forming an outer circumference of said second end of said outer approximately cylindrical shell, said at least three fingers being tapered at said second end and having annular rib portions formed at selected positions along said outer approximately cylindrical shell, the entire length of said outer approximately cylindrical shell having a longitudinal cavity formed therein and
- a longitudinal expansion rod shaped to fill said cavity of said outer approximately cylindrical shell, said rod having a first tapered portion at a first end thereof and a second tapered portion placed at a position about one fourth of the way from said first end, said rod having a hexagonal shaped head at a second end thereof, said rod having external threads formed thereon adjacent to said hex head, said rod capable of being inserted and threaded into said outer approximately cylindrical shell, said threading of said rod into said outer approximately cylindrical shell causing said expansion rod to move axially inward to said outer approximately cylindrical shell, and an axial movement of said tapered sections of said rod causing radial spreading of said at least three fingers.
A injector sleeve kit including an injector sleeve removal tool and an injector sleeve installation tool comprising:
- said injector sleeve removal tool comprising:
- a tap with a nut welded to a non-threaded end thereof;
- a bolt with a loose nut threaded thereon and a flat washer slipped thereon;
- said bolt with said nut threaded thereon and said washer slipped thereon tightly threaded into said nut welded onto said non-threaded end of said tap;
- a hollow cylinder whose inner diameter is larger than the outer diameter of an injector sleeve to be removed and whose length is at least as long as said tap and welded nut combination but short enough to allow said tap section to penetrate and cut at least three threads into said injector sleeve;
- and
- a load bearing washer between said loose nut and said hollow cylinder;
- and
- said injector sleeve installation tool comprising:
- an outer approximately cylindrical shell having a circular aperture formed in a first end thereof, said circular aperture and said internal threads coaxial with said approximately cylindrical shell, internal threads adjacent to said circular aperture, the second end of said outer approximately cylindrical shell having at least three parallel longitudinal fingers being parallel to an axis of said outer approximately cylindrical shell, said three fingers separated by at least there longitudinal slits reaching from said second end to a distance of about half a length of said outer approximately cylindrical shell, said at least three fingers forming an outer circumference of said second end of said outer approximately cylindrical shell, said at least three fingers being tapered at said second end and having annular rib portions formed at selected positions along said outer approximately cylindrical shell, the entire length of said outer approximately cylindrical shell having a longitudinal cavity formed therein and
- a longitudinal expansion rod shaped to fill said cavity of said outer approximately cylindrical shell, said rod having a first tapered portion at a first end thereof and a second tapered portion placed at a position about one fourth of the way from said first end, said rod having a hexagonal shaped head at a second end thereof, said rod having external threads formed thereon adjacent to said hex head, said rod capable of being inserted and threaded into said outer approximately cylindrical shell, said threading of said rod into said outer approximately cylindrical shell causing said expansion rod to move axially inward to said outer approximately cylindrical shell, and an axial movement of said tapered sections of said rod causing radial spreading of said at least three fingers.
8 more elements
Dependencies are inferred from the claim text.