US1371732A - Internal-combustion-engine cylinder - Google Patents

Internal-combustion-engine cylinder Download PDF

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Publication number
US1371732A
US1371732A US404916A US40491620A US1371732A US 1371732 A US1371732 A US 1371732A US 404916 A US404916 A US 404916A US 40491620 A US40491620 A US 40491620A US 1371732 A US1371732 A US 1371732A
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US
United States
Prior art keywords
cylinder
barrel
internal
combustion
engine cylinder
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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
US404916A
Inventor
Bradshaw Granville Eastwood
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.)
A B C MOTORS (1920) Ltd
C MOTORS 1920 Ltd AB
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C MOTORS 1920 Ltd AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by C MOTORS 1920 Ltd AB filed Critical C MOTORS 1920 Ltd AB
Priority to US404916A priority Critical patent/US1371732A/en
Application granted granted Critical
Publication of US1371732A publication Critical patent/US1371732A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling

Definitions

  • This invention relates to improvements in internal combustion engine cylinders which have for their main object to maintain an even temperature over that part of the cylinder barrel or cylinder proper in which the working stroke of the piston occurs, inequalities of temperature tending to distort the cylinder and cause leakage'past the piston.
  • Other subsidiary objects or advantages secured by the invention are general reduction of the temperature of the cylinder proper and of the weight of the complete cylinder. low cost in manufacture and ab sence of joints or sleeves through which heat has to be radiated outward. such as for instance, in the case of a cast-iron or steel liner pressed into an aluminium or copper shell.
  • a sleeve or ring of material having good heat conductivity such as aluminium or copper is interposed between the cylinder head and the cylinder proper.
  • the cylinder head may be of cast-iron and as this material is of poor heat conductivity, is liable to remain hot near the exhaust valve and cool near the inlet valve.
  • the heat passes through the aluminium or copper sleeve. in which it is distributed more evenly owing to its good conducting power, and thus the temperature of the cylinder barrel is maintained more uniform than heretofore.
  • the cylinder head 1 may be made of cast iron and have integrally formed with it the inlet and exhaust valve seats and parts and other usualfittings, or be made of aluminium with suitable valve seats inserted in known manner. In either case it is preferably provided with ribs 2 to assist cooling.
  • the cylinder barrel or cylinder proper 3. within which the piston 4 works may be made of steel or other suitable material and as shown does Patented Mar. 15, 1921.
  • a sleeve or ring 6 made of material of good heat conductivity, preferably copper or aluminium, and this may have fins such as 7 to assist in dissipating heat.
  • the sleeve or ring may be spigoted as shown at 8 and 9 respectively into the cylinder barrel and cylinder head (or vice versa) and the parts may be bolted together or fixed in any known manner to take the stress due to the explosion.
  • the member 6 is shown as a thin rin'g between thecylinder head 1 and the cylinder barrel 3, jointing rings or washers 10 being used to insure a pressure-tight joint.
  • a cylinder for internal combustion engines comprising an integral cast metal barrel, a cast metal head having intake and exhaust valves mounted therein. and a sleeve between said barrel and head. said sleeve being of metal of a higher conductivity than said barrel and head.
  • an integral cast metal barrel terminating slightly above the uppermost position of the piston.
  • a sleeve seated on. said barrel above the piston and formed of metal having a higher conductivity than said barrel.
  • a cast metal head seated on said sleeve. said head having intake and exhaust valves mounted therein.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

G. E. BRADSHAW.
INTERNAL COMBUSTION ENGINE CYLINDER.
APPLICATION FILED AUG-20, 1920.
1 71,732. Patented Mar. 15, 1921.
UNlTED STATES PATENT OFFICE.
GRANVILLE EASTWOOD BRADSHAW, OF HERSHAM, WALTON-ON-THAMES, ENGLAND, ASSIGNOR TO A. B. C. MOTORS (1920) LIMITED, OF HERSHAM, WALTON-ON-THAMES,
ENGLAND.
INTERNAL-COMBUSTION-ENGINE CYLINDER.
Specification of Letters Patent.
Application filed August 20, 1920. Serial No. 404,916.
BRADSHAW, a subject of the King of Great Britain and Ireland. residing at A. B. C.
Motor \Vorks, Hersham, VValton-on-Thames, in the county of Surrey, England. have invented new and useful Improvements in Internal Combustion Engine Cylinders. ot' which the following is a specification.
This invention relates to improvements in internal combustion engine cylinders which have for their main object to maintain an even temperature over that part of the cylinder barrel or cylinder proper in which the working stroke of the piston occurs, inequalities of temperature tending to distort the cylinder and cause leakage'past the piston. Other subsidiary objects or advantages secured by the invention are general reduction of the temperature of the cylinder proper and of the weight of the complete cylinder. low cost in manufacture and ab sence of joints or sleeves through which heat has to be radiated outward. such as for instance, in the case of a cast-iron or steel liner pressed into an aluminium or copper shell. According to the invention a sleeve or ring of material having good heat conductivity such as aluminium or copper is interposed between the cylinder head and the cylinder proper. The cylinder head may be of cast-iron and as this material is of poor heat conductivity, is liable to remain hot near the exhaust valve and cool near the inlet valve. Before reaching the cylinder barrel, however. the heat passes through the aluminium or copper sleeve. in which it is distributed more evenly owing to its good conducting power, and thus the temperature of the cylinder barrel is maintained more uniform than heretofore. v
Further details of the invention will be described more fully with reference to the accompanying drawings in whichsleeve or ring.
Referring to Fig. 1 of the drawings, the cylinder head 1 may be made of cast iron and have integrally formed with it the inlet and exhaust valve seats and parts and other usualfittings, or be made of aluminium with suitable valve seats inserted in known manner. In either case it is preferably provided with ribs 2 to assist cooling. The cylinder barrel or cylinder proper 3. within which the piston 4 works may be made of steel or other suitable material and as shown does Patented Mar. 15, 1921.
not extend appreciably above the top of the piston when this is at the top of thestroke.
It is as usual provided with ribs 5 for cooling purposes.
Between the cylinder head 1 and the barrel 3 is provided a sleeve or ring 6 made of material of good heat conductivity, preferably copper or aluminium, and this may have fins such as 7 to assist in dissipating heat. The sleeve or ring may be spigoted as shown at 8 and 9 respectively into the cylinder barrel and cylinder head (or vice versa) and the parts may be bolted together or fixed in any known manner to take the stress due to the explosion.
In Fig. 2, the member 6 is shown as a thin rin'g between thecylinder head 1 and the cylinder barrel 3, jointing rings or washers 10 being used to insure a pressure-tight joint.
It is obvious, of course. that many modifications may be made in the details of the invention.
I claim 1. A cylinder for internal combustion engines comprising an integral cast metal barrel, a cast metal head having intake and exhaust valves mounted therein. and a sleeve between said barrel and head. said sleeve being of metal of a higher conductivity than said barrel and head.
i 2. In an internal combustion engine cylinder, an integral cast metal barrel terminating slightly above the uppermost position of the piston. a sleeve seated on. said barrel above the piston and formed of metal having a higher conductivity than said barrel. and a cast metal head seated on said sleeve. said head having intake and exhaust valves mounted therein.
GRANVILLE EASTWOOD BRADSHAW.
US404916A 1920-08-20 1920-08-20 Internal-combustion-engine cylinder Expired - Lifetime US1371732A (en)

Priority Applications (1)

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US404916A US1371732A (en) 1920-08-20 1920-08-20 Internal-combustion-engine cylinder

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US404916A US1371732A (en) 1920-08-20 1920-08-20 Internal-combustion-engine cylinder

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US1371732A true US1371732A (en) 1921-03-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387678A (en) * 1979-09-19 1983-06-14 Klockner-Humboldt Deutz Aktiengesellschaft Light metal cylinder head for internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387678A (en) * 1979-09-19 1983-06-14 Klockner-Humboldt Deutz Aktiengesellschaft Light metal cylinder head for internal combustion engines
US4442803A (en) * 1979-09-19 1984-04-17 Klockner-Humboldt-Deutz Aktiengesellschaft Light metal cylinder head for internal combustion engines

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