US1842441A - Method of repairing engine cylinders - Google Patents

Method of repairing engine cylinders Download PDF

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Publication number
US1842441A
US1842441A US405069A US40506929A US1842441A US 1842441 A US1842441 A US 1842441A US 405069 A US405069 A US 405069A US 40506929 A US40506929 A US 40506929A US 1842441 A US1842441 A US 1842441A
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United States
Prior art keywords
cylinder
shell
diameter
engine cylinders
repairing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US405069A
Inventor
Yount Catherine Ruth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EAGLE MACHINE Co Inc
EAGLE MACHINE COMPANY Inc
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EAGLE MACHINE Co Inc
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Publication date
Application filed by EAGLE MACHINE Co Inc filed Critical EAGLE MACHINE Co Inc
Priority to US405069A priority Critical patent/US1842441A/en
Application granted granted Critical
Publication of US1842441A publication Critical patent/US1842441A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/02—Pistons or cylinders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/026—Method or apparatus with machining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49231—I.C. [internal combustion] engine making
    • Y10T29/49233—Repairing, converting, servicing or salvaging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/4927—Cylinder, cylinder head or engine valve sleeve making

Definitions

  • the shell has port holes and 6 6 atenteol Jamh, 1932 HORACE J. YOUNT, OF INDIANAPOLIS, INDIANA; CATHEBINERUTH YOUNT, ADMINIS- TRATRIX OI! SAID HORACE J. YOUNT, DECEASED, ASSIGNORJBY M'ESNE ASSIGN- HIETHOD OF REPAIRING ENGINE CYLINDERS INCORPORATED, OF INDIANAPOLIS,
  • the object of this invention is to repair worn, scored and cracked cylinders by bore ing them larger and inserting a cast metal lining or shell having cored-out parts to register and correspond with those of the cylthe introduction of a repair shell is just be-
  • Fig. 2 is a longitudinal section on the line Y 2-2 of Fig. 1;
  • Fig. 3 is a transverse section on the llne 3-3 of Fig. 1.
  • a cylinder 4 may be of any usual and suitable construction, the type here shownhaving a single port 5, through one side of its wall and a pair of ports 6, 6, through the wall diametrically opposite; but that-will vary in different engine types.
  • the cylinder is surrounded by the usual Water-j acket 7.
  • A. crack, wear or score in the cylinder, here shown at 8 is to be closed by the aid of my invention, which comprises the'reboring of the cylinder 4, to a diameter sufficiently enlarged to receive a metal lining or shell 8.
  • the shell 8 is preferably formed of cast ironwhich is initially thicker in both out side and inside diameters for-.machining to the exact dimensions which are required for corresponding in all respects as to size, shape, and location, with the respective ports 5 and t3, 6, of the cylinder. Thus, when the shell is assembled in the cylinder the several port openings will exactly register.
  • the cast shells 8 are turned down on the outside, preferably to a standard diameter, in order that they may be made in quantities and kept in stock for quick delivery as needed, and the exact outside measurement known in advance by the mechanic ordering 1t, thereby enabling him to proceed with the reboring of the cylinder while the she'll for this particular type and size of engine is in transit from a supply house.
  • the cylinder is rebored to a diameter which will receive the shell with a tight sliding fit, under pressure, in order to hold the assembly without other fastening means;
  • the inner edge of the shell farthest from the ports is chamfered to receive the piston (not shown) with the greatest freedom, and a longitudinal line w-b is scored into the outside finished surface of the shell.
  • the end of the cylinder is formed with an indent 0; located by careful measurement, to indicate, by placing the line ar -b opposite it, where the shell must be positioned at the beginning ofits installation, and the line and indent are kept together until the installation is complete, to insure the proper registration of the ports of the shell with those of the cylinder.
  • the length of the shell is just right to bring the ports into proper register when the outer end of the shell has moved until it is flush with the end of the'cylinder.
  • the inside diameter of the shell is formed by grinding or other suitable means to fit the piston that is to be used with that job. To enable this to be done the inside diameter is left purposely smaller than it will be in the finished product.
  • the method of. repairing a worn gas engine cylinder which comprises cutting the cylinder to a uniform diameter greater than its initial standard diameter, forming a tubular sleeve with an initial external diameter iiitl exceeding that of the greatest diameter to which said cylinder may safely becut and With an internal diameter less than the standard diameter of the c linder, cutting the 5 sleeve externally to re uce its diameter to near that of the enlarged'cylinder to provide for a force fit, pressing the sleeve. into the enlarged cylinder, and cutting the sleeve internally to a standard diameter for the cyl- 1 inder,

Description

Jan. 26, 1932. H. J. YOUNT 42 METHOD OF REPAIRING ENGINE CYLINDERS F iled Nov. 6. 1929 T' 4 cL I w 'l' 4 L w i v llll 1/ If 5 I I b 5 5 b 5 1 j 1 Q l \i 7 INVENTOR.
Horace J. Younf "W mm ATTORNEY.
use. The shell has port holes and 6 6 atenteol Jamh, 1932 HORACE J. YOUNT, OF INDIANAPOLIS, INDIANA; CATHEBINERUTH YOUNT, ADMINIS- TRATRIX OI! SAID HORACE J. YOUNT, DECEASED, ASSIGNORJBY M'ESNE ASSIGN- HIETHOD OF REPAIRING ENGINE CYLINDERS INCORPORATED, OF INDIANAPOLIS,
1. tart- Application filed November 6, 1929. Serial No. 405,069.,
It frequently happens that the cylinders of internal combustion engines become worn, scored or cracked in use, heretofore requiring a replacement of the cylinder and as there are commonly a plurality of cylinders in a unitary casting of such engines, making a replacement of all of them necessary, the resulting expense is high. v
The object of this invention is to repair worn, scored and cracked cylinders by bore ing them larger and inserting a cast metal lining or shell having cored-out parts to register and correspond with those of the cylthe introduction of a repair shell is just be- Fig. 2 is a longitudinal section on the line Y 2-2 of Fig. 1; and
Fig. 3 is a transverse section on the llne 3-3 of Fig. 1.
Like characters of reference indicate like parts in the several views of the drawings.
A cylinder 4, may be of any usual and suitable construction, the type here shownhaving a single port 5, through one side of its wall and a pair of ports 6, 6, through the wall diametrically opposite; but that-will vary in different engine types. The cylinder is surrounded by the usual Water-j acket 7.
A. crack, wear or score in the cylinder, here shown at 8, is to be closed by the aid of my invention, which comprises the'reboring of the cylinder 4, to a diameter sufficiently enlarged to receive a metal lining or shell 8.
The shell 8 is preferably formed of cast ironwhich is initially thicker in both out side and inside diameters for-.machining to the exact dimensions which are required for corresponding in all respects as to size, shape, and location, with the respective ports 5 and t3, 6, of the cylinder. Thus, when the shell is assembled in the cylinder the several port openings will exactly register.
The cast shells 8 are turned down on the outside, preferably to a standard diameter, in order that they may be made in quantities and kept in stock for quick delivery as needed, and the exact outside measurement known in advance by the mechanic ordering 1t, thereby enabling him to proceed with the reboring of the cylinder while the she'll for this particular type and size of engine is in transit from a supply house.
The cylinder is rebored to a diameter which will receive the shell with a tight sliding fit, under pressure, in order to hold the assembly without other fastening means; The inner edge of the shell farthest from the ports is chamfered to receive the piston (not shown) with the greatest freedom, and a longitudinal line w-b is scored into the outside finished surface of the shell.
The end of the cylinder is formed with an indent 0; located by careful measurement, to indicate, by placing the line ar -b opposite it, where the shell must be positioned at the beginning ofits installation, and the line and indent are kept together until the installation is complete, to insure the proper registration of the ports of the shell with those of the cylinder.
The length of the shell is just right to bring the ports into proper register when the outer end of the shell has moved until it is flush with the end of the'cylinder.
After the shell is finally positioned in the cylinder, the inside diameter of the shell is formed by grinding or other suitable means to fit the piston that is to be used with that job. To enable this to be done the inside diameter is left purposely smaller than it will be in the finished product.
I claim:
The method of. repairing a worn gas engine cylinder which comprises cutting the cylinder to a uniform diameter greater than its initial standard diameter, forming a tubular sleeve with an initial external diameter iiitl exceeding that of the greatest diameter to which said cylinder may safely becut and With an internal diameter less than the standard diameter of the c linder, cutting the 5 sleeve externally to re uce its diameter to near that of the enlarged'cylinder to provide for a force fit, pressing the sleeve. into the enlarged cylinder, and cutting the sleeve internally to a standard diameter for the cyl- 1 inder,
In testimony whereof I affix my signature.
HORACE J. YQUNT.
US405069A 1929-11-06 1929-11-06 Method of repairing engine cylinders Expired - Lifetime US1842441A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090322A (en) * 1961-10-06 1963-05-21 Aapcd Automotive Inc Oil pump
US4185368A (en) * 1976-09-02 1980-01-29 K-Line Industries, Inc. Method for making valve guide inserts
US4486938A (en) * 1981-03-20 1984-12-11 Hext Billy R Process of remanufacturing pump cylinder liners
US5222295A (en) * 1992-04-07 1993-06-29 Dorris Jr John W Method for repairing diesel engine cylinder blocks
US5666725A (en) * 1994-05-31 1997-09-16 Patent Master, Inc. Engine remanufacture by adhesively retained cylinder liners
US20100000090A1 (en) * 2008-07-03 2010-01-07 Caterpillar Inc. Method of manufacturing an engine block

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090322A (en) * 1961-10-06 1963-05-21 Aapcd Automotive Inc Oil pump
US4185368A (en) * 1976-09-02 1980-01-29 K-Line Industries, Inc. Method for making valve guide inserts
US4486938A (en) * 1981-03-20 1984-12-11 Hext Billy R Process of remanufacturing pump cylinder liners
US5222295A (en) * 1992-04-07 1993-06-29 Dorris Jr John W Method for repairing diesel engine cylinder blocks
US5666725A (en) * 1994-05-31 1997-09-16 Patent Master, Inc. Engine remanufacture by adhesively retained cylinder liners
US20100000090A1 (en) * 2008-07-03 2010-01-07 Caterpillar Inc. Method of manufacturing an engine block
US8191529B2 (en) 2008-07-03 2012-06-05 Caterpillar Inc. Method of manufacturing an engine block

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