US1482778A - Insulating head for pistons - Google Patents
Insulating head for pistons Download PDFInfo
- Publication number
- US1482778A US1482778A US579469A US57946922A US1482778A US 1482778 A US1482778 A US 1482778A US 579469 A US579469 A US 579469A US 57946922 A US57946922 A US 57946922A US 1482778 A US1482778 A US 1482778A
- Authority
- US
- United States
- Prior art keywords
- head
- piston
- pistons
- disc
- insulating
- 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
Links
- 238000010276 construction Methods 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
Definitions
- My invention relates to improvements in insulating heads for pistons and the object of the invention is to devise a piston head in which means are provided to prevent the heat generated by the explosion of gases within the cylinder from passing through the head and carbonizing the oil therearound in which the head will not be affected by the heat of the surrounding body of metal to render it inoperative and which is so constructed as to render it easily applicable to insertion in a piston already constructed and it consists essentially of the arrangement and construction of parts as hereinafter more particularly explained.
- Fig. 1 represents a sectional view of my piston head with my insulating means applied thereto.
- Fig. 2 is a similar view of a modified construction.
- cup 6 is a cupped or dished member formed of sheet metal, the side wall of which is of such a thickness as to fit within the intervening space 5.
- the parts are secured together by electric welding or any other suitablemeans.
- an intervening space 7 which is filled with asbestos wool or any other suitable non-conducting material.
- 9 is a perforation formed in the disc at to let out the air as it expands when the device is first heated. This perforation is afterwards sealed by any suitable means.
- Fig. 2 I show a modified form in which the asbestos filling is dispensed with, the cup member 6 being formed deeper than the cup 6 so as to form an air chamber which, in its self, forms a non-conducting barrier at the head of the piston.
- a head having the central portion located within the side walls of the piston removed to form a separate disc having its exterior edge slightly spaced apart from the body of the piston, and a cupped member having its wall inserted between the disc and the body of the piston so that the parts may be electrically welded to gether.
- a head having the central portion located within the side walls of the piston removed to form a separate disc having its exterior edge slightly spaced apart from the body of the piston, a cupped memher having its wall inserted between the disc and the body of the piston so that the parts may be electrically welded together, and a filling of non-conducting material inserted within the cupped member between the inner face of the disc portion of the head and the bottom of the cup.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
Feb. 5 1924.-
1,482,778 a. BIOWMAR I INSIjLATING HEAD FOR PISTONS Original Filed Au 5. 1922 o i1 z 1 o I I i ,r 2' J'hven t :23 8.50MB.
Patented Feb. 5, 1924.
mane
GERSHON BOWMAR, OF TORONTO, ONTARIO, CANADA.
INSULATING HEAD FOR PISTONS.
Application filed August 3, 1922, Serial No. 519,469. Renewed November 6, 1923.
To all whom it may concern:
Be it known that I, GERSHON BOWMAR, a subject of the King of Great Britain, and a resident of the city of Toronto, in the county of York, in the Province of Ontario,
Canada, have invented certain new and useful Improvements in Insulating Heads for Pistons, of which the following is the specification.
My invention relates to improvements in insulating heads for pistons and the object of the invention is to devise a piston head in which means are provided to prevent the heat generated by the explosion of gases within the cylinder from passing through the head and carbonizing the oil therearound in which the head will not be affected by the heat of the surrounding body of metal to render it inoperative and which is so constructed as to render it easily applicable to insertion in a piston already constructed and it consists essentially of the arrangement and construction of parts as hereinafter more particularly explained.
Fig. 1 represents a sectional view of my piston head with my insulating means applied thereto.
Fig. 2 is a similar view of a modified construction.
In the drawings like characters of reference indicate corresponding parts in each figure.
Referring first to Fig. 1.
1 indicates a piston of which 2 is the head and 3 the side wall. 4 is a disc-like port-ion which is out out of the head comprising that part within the side Wall 3. The disc portion a is so cut out as to leave a slight intervening annular space 5 between the edges of the disc and the opposing portion of the piston head when the parts are inserted one within the other.
6 is a cupped or dished member formed of sheet metal, the side wall of which is of such a thickness as to fit within the intervening space 5. When the cup 6 is inserted in this position the parts are secured together by electric welding or any other suitablemeans.
Between the bottom face of the disc portion 4 and the bottom wall of the cup 6 is formed an intervening space 7 which is filled with asbestos wool or any other suitable non-conducting material. 9 is a perforation formed in the disc at to let out the air as it expands when the device is first heated. This perforation is afterwards sealed by any suitable means.
In Fig. 2 I show a modified form in which the asbestos filling is dispensed with, the cup member 6 being formed deeper than the cup 6 so as to form an air chamber which, in its self, forms a non-conducting barrier at the head of the piston.
It will thus be seen that I have devised a very simple, efficient and compact construction of insulating piston head in which the wrist pin may be located nearer to the head than is permissible in an ordinary oonstruction, for the reason that the wrist pin of my construction will not be affected by the heat passing through the piston head when in close proximity to the head as in the case in an ordinary construction of piston.
What I claim as my invention is:
1. In a piston, a head having the central portion located within the side walls of the piston removed to form a separate disc having its exterior edge slightly spaced apart from the body of the piston, and a cupped member having its wall inserted between the disc and the body of the piston so that the parts may be electrically welded to gether.
2. In a piston, a head having the central portion located within the side walls of the piston removed to form a separate disc having its exterior edge slightly spaced apart from the body of the piston, a cupped memher having its wall inserted between the disc and the body of the piston so that the parts may be electrically welded together, and a filling of non-conducting material inserted within the cupped member between the inner face of the disc portion of the head and the bottom of the cup.
GERSHON BOWMAR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US579469A US1482778A (en) | 1922-08-03 | 1922-08-03 | Insulating head for pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US579469A US1482778A (en) | 1922-08-03 | 1922-08-03 | Insulating head for pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1482778A true US1482778A (en) | 1924-02-05 |
Family
ID=24317029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US579469A Expired - Lifetime US1482778A (en) | 1922-08-03 | 1922-08-03 | Insulating head for pistons |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1482778A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840427A (en) * | 1955-06-10 | 1958-06-24 | Gen Motors Corp | Piston |
| US4552057A (en) * | 1983-12-30 | 1985-11-12 | Gte Products Corporation | Thermally insulated piston |
| US4599772A (en) * | 1983-02-04 | 1986-07-15 | Ae Plc | Method for reinforcement of pistons of aluminum or aluminum alloy |
| US4604945A (en) * | 1983-12-30 | 1986-08-12 | Gte Products Corporation | Thermally insulated piston |
| US9212621B2 (en) | 2013-03-13 | 2015-12-15 | Federal-Mogul Corporation | Piston and method of construction thereof |
-
1922
- 1922-08-03 US US579469A patent/US1482778A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840427A (en) * | 1955-06-10 | 1958-06-24 | Gen Motors Corp | Piston |
| US4599772A (en) * | 1983-02-04 | 1986-07-15 | Ae Plc | Method for reinforcement of pistons of aluminum or aluminum alloy |
| US4552057A (en) * | 1983-12-30 | 1985-11-12 | Gte Products Corporation | Thermally insulated piston |
| US4604945A (en) * | 1983-12-30 | 1986-08-12 | Gte Products Corporation | Thermally insulated piston |
| US9212621B2 (en) | 2013-03-13 | 2015-12-15 | Federal-Mogul Corporation | Piston and method of construction thereof |
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