US1678957A - Piston cooling - Google Patents
Piston cooling Download PDFInfo
- Publication number
- US1678957A US1678957A US82947A US8294726A US1678957A US 1678957 A US1678957 A US 1678957A US 82947 A US82947 A US 82947A US 8294726 A US8294726 A US 8294726A US 1678957 A US1678957 A US 1678957A
- Authority
- US
- United States
- Prior art keywords
- piston
- chamber
- heat
- wall
- piston cooling
- 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
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
- F02F3/16—Pistons having cooling means
- F02F3/18—Pistons having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Definitions
- OTTO PHILIPP OF WINTERTHIIR,.SWITZERLAND, ASSIGNOR T BOSGH-SULZEB BROS.- DIESEL ENGINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.
- the invention relates to engine pistons of the kind in which heat is dissipated from the working face or head wall of the piston by means of a body of heat-carrying material which is thrown back and forth within the piston by the reciprocation of the latter, so
- the object is to improve this system of piston coollng 1n respect of its compactness and efliciency and to this end the invention consists in the principle of configuration of the piston as hereinafter explained.
- Figure 1 is an axial section of so much of a piston and cylinder of an internal combustion engine as will be necessary to illustrate one form of the invention.
- Figure 2 is a similar sectlon illustrating a different shape of the interior piston chamber; and
- Figure 3 an axial section of a further modified form of piston chamber.
- piston cylinders 1 are water-jacketed or equivalently externally cooled and are understood to be provided with fuel injectors as indicated, or with other means of introducing combustible whereby combustion is caused to occur in the combustion spaces, as will be understood.
- the piston is formed with an interior chamber immediatel adjacent to its head wall 2. This chamber is herein termed a heat-transfer chamber and entrance to it is closed by the screw plug, as indicated, orv in any other suitable manner.
- the chamber contains a body of mobile materlal 3 of good heat coeflicient, which is thrown back and forth in the chamber as the piston reciprocates.
- Such material may consist of copper or aluminum chips or of mercury, being in any event a material which does not change its form by the effect of the heat to which it is subjected inside of a piston.
- the heat transfer chamber is of greater diameter than length, so that the heat-carrying material has a relatively short flight from one wall to the other and practically the whole of the surface against which such material impinges is inclined to the direction of piston movement so that after impingement there is a considerable sliding of the and as it passes outer dead center is in contact with the opposite wall marked 4;, the latter being substantially parallel to the head wall 2 which in this case is conical.
- the mobile material In the first mentioned position the mobile material'takes on a portion of heat from the head wall, particularly its center which is the hottest spot, and in the other position it delivers such heat piston, where it ma through the piston s water jacket. the water 7 ing the chamber walls 2 and 4 of progressively greater thickness as they approach the cylinder wall. s
- the piston of Figure 3 is constructed of a head and a skirt part marked 7 and 8, respectively, fitted together in any appropriate manner; and forming between them a heattransfer chamber operating on the same prolong the contact of the material with the jacket is also facilitated by formt pointed funnel holes on the upstroke of the .piston than through the others and vice versa on the down-stroke of the piston. This accomplishes an efiective distribution of the material and a longer contact of it with the metallic surfaces between which heat is exchanged.
- the transverse Wall 11 is relatively massive in section, so that, notwithstanding the apertures through it, it provides an easy escape path for the heat, in addition to which, he lower chamber wall 13 carries ofl heat as in the other figures.
- An engine piston formed with a heattransfer chamber adjacent its head Wall, said chamber being of greater diameter than axial length and containing a mobile heat-carrying medium adapted to be thrown back and forth therein, the interior wall of said chamber presenting an imperforate surface and the major porton thereof being inclined to the direction of piston movement to control the movement of the medium as described.
Description
July 31, 1928. 1,678,957
0. PHILIPP PISTON COOLING Filed Jam. 22. 1926 Patented July 31, 1928.
UNITED STATES'PATENT OFFICE.
OTTO PHILIPP, OF WINTERTHIIR,.SWITZERLAND, ASSIGNOR T BOSGH-SULZEB BROS.- DIESEL ENGINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.
PISTON COOLING.
Application filed January 22, 1926, Serial No. 82,947, and in Germany January 29, 1925. v I
The invention relates to engine pistons of the kind in which heat is dissipated from the working face or head wall of the piston by means of a body of heat-carrying material which is thrown back and forth within the piston by the reciprocation of the latter, so
material along such walls, thereby tending to tact with thejouter surface of the head wall as to have alternate contact with said head wall and with the lower or outer part of the piston, thus on each stroke carrying to the latter part of the heat which it takes from the head wall. The object is to improve this system of piston coollng 1n respect of its compactness and efliciency and to this end the invention consists in the principle of configuration of the piston as hereinafter explained.
In the accompanying drawing Figure 1 is an axial section of so much of a piston and cylinder of an internal combustion engine as will be necessary to illustrate one form of the invention. Figure 2 is a similar sectlon illustrating a different shape of the interior piston chamber; and Figure 3 an axial section of a further modified form of piston chamber.
In the drawing the piston cylinders 1 are water-jacketed or equivalently externally cooled and are understood to be provided with fuel injectors as indicated, or with other means of introducing combustible whereby combustion is caused to occur in the combustion spaces, as will be understood. In Figure 1 the piston is formed with an interior chamber immediatel adjacent to its head wall 2. This chamber is herein termed a heat-transfer chamber and entrance to it is closed by the screw plug, as indicated, orv in any other suitable manner. The chamber contains a body of mobile materlal 3 of good heat coeflicient, which is thrown back and forth in the chamber as the piston reciprocates. Such material may consist of copper or aluminum chips or of mercury, being in any event a material which does not change its form by the effect of the heat to which it is subjected inside of a piston. The heat transfer chamber is of greater diameter than length, so that the heat-carrying material has a relatively short flight from one wall to the other and practically the whole of the surface against which such material impinges is inclined to the direction of piston movement so that after impingement there is a considerable sliding of the and as it passes outer dead center is in contact with the opposite wall marked 4;, the latter being substantially parallel to the head wall 2 which in this case is conical. In the first mentioned position the mobile material'takes on a portion of heat from the head wall, particularly its center which is the hottest spot, and in the other position it delivers such heat piston, where it ma through the piston s water jacket. the water 7 ing the chamber walls 2 and 4 of progressively greater thickness as they approach the cylinder wall. s
In Figure 2 the head wall 5 of the piston 1s reentrant or dished and the disposition of the heat transfer chamber is accordingly modified, being in fact merely inverted as compared to Figure 1. This chamber is permanently closed by a cap-plate 6, but, like the chamber of Figure 1, is of considerable diameter and' relatively short axial dimension and the major portion of its internal wall surface is inclined to the direction of piston movement for the pu se to the outer part of the fin'd an escape path irt to thesurrounding The transfer of the heatito above explained and so that the materialtends to flow along rather than strike the chamber wall.
The piston of Figure 3 is constructed of a head and a skirt part marked 7 and 8, respectively, fitted together in any appropriate manner; and forming between them a heattransfer chamber operating on the same prolong the contact of the material with the jacket is also facilitated by formt pointed funnel holes on the upstroke of the .piston than through the others and vice versa on the down-stroke of the piston. This accomplishes an efiective distribution of the material and a longer contact of it with the metallic surfaces between which heat is exchanged. The transverse Wall 11 is relatively massive in section, so that, notwithstanding the apertures through it, it provides an easy escape path for the heat, in addition to which, he lower chamber wall 13 carries ofl heat as in the other figures.
It will now be apparent that the principles above explained can be applied to various types and designs of engine pistons and it will be understood that there is no intention to limit the scope of the appended claims to the specific piston designs which have been taken for illustration'ot the invention.
The following is claimed: I
An engine piston formed with a heattransfer chamber adjacent its head Wall, said chamber being of greater diameter than axial length and containing a mobile heat-carrying medium adapted to be thrown back and forth therein, the interior wall of said chamber presenting an imperforate surface and the major porton thereof being inclined to the direction of piston movement to control the movement of the medium as described.
In testimony whereof, I have signed this specification.
OTTO PHILIPP.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1678957X | 1925-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1678957A true US1678957A (en) | 1928-07-31 |
Family
ID=7739147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US82947A Expired - Lifetime US1678957A (en) | 1925-01-29 | 1926-01-22 | Piston cooling |
Country Status (1)
Country | Link |
---|---|
US (1) | US1678957A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461873A (en) * | 1946-04-11 | 1949-02-15 | Bulova Watch Co Inc | Expansible plunger |
US2494748A (en) * | 1946-02-16 | 1950-01-17 | Smith Corp A O | Piston |
US2711159A (en) * | 1948-11-25 | 1955-06-21 | Daimler Benz Ag | Piston and piston type internal combustion engine |
US3292501A (en) * | 1963-12-24 | 1966-12-20 | Philips Corp | Device including at least one cylinder with a piston-shaped body which is movable therein |
US3385375A (en) * | 1966-08-01 | 1968-05-28 | Gen Dynamics Corp | Method and means for producing a long impulse for high energy rate forming apparatus |
US3485143A (en) * | 1967-10-09 | 1969-12-23 | Caterpillar Tractor Co | Friction welded internally cooled piston |
DE1751342B1 (en) * | 1968-05-14 | 1970-06-18 | Alcan Aluminiumwerke | Piston with ring-shaped cooling channel arranged in the piston head |
DE2533556A1 (en) * | 1975-07-24 | 1977-01-27 | Sulzer Ag | LIQUID-COOLED PISTON OF A PISTON ENGINE |
US4256022A (en) * | 1978-04-20 | 1981-03-17 | Elsbett L | Piston for reciprocating internal combustion engines, typically diesel engines |
EP0074156A2 (en) * | 1981-09-05 | 1983-03-16 | Mitsubishi Jukogyo Kabushiki Kaisha | Piston in an internal combustion engine |
US4493292A (en) * | 1983-06-09 | 1985-01-15 | Automotive Engine Associates | Heat piped piston |
FR2579674A1 (en) * | 1985-03-30 | 1986-10-03 | Man B & W Diesel Gmbh | Oil-cooled piston for IC engine |
US5339775A (en) * | 1994-01-03 | 1994-08-23 | Caterpillar Inc. | Cooling arrangement for a piston assembly |
US8544441B2 (en) | 2011-08-04 | 2013-10-01 | Federal-Mogul Ignition Company | Piston including a pair of cooling chambers |
WO2013167103A2 (en) * | 2012-05-05 | 2013-11-14 | Mahle International Gmbh | Piston for an internal combustion engine |
WO2014071274A1 (en) * | 2012-11-02 | 2014-05-08 | Federal-Mogul Corporation | Piston with a cooling gallery partially filled with a thermally conductive metal-containing composition |
US8955486B2 (en) | 2012-02-10 | 2015-02-17 | Federal Mogul Corporation | Piston with enhanced cooling gallery |
WO2017032905A1 (en) * | 2015-08-27 | 2017-03-02 | Ks Kolbenschmidt Gmbh | Piston of an internal combustion engine having alkali metal cooling and method for production thereof |
WO2017133945A1 (en) * | 2016-02-03 | 2017-08-10 | Mahle International Gmbh | Piston of an internal combustion engine |
US10294887B2 (en) | 2015-11-18 | 2019-05-21 | Tenneco Inc. | Piston providing for reduced heat loss using cooling media |
EP2812553B1 (en) * | 2012-02-10 | 2019-10-16 | Tenneco Inc. | Piston with enhanced cooling gallery |
US10774781B2 (en) | 2017-01-25 | 2020-09-15 | Tenneco, Inc. | Piston with anti-coking design features |
-
1926
- 1926-01-22 US US82947A patent/US1678957A/en not_active Expired - Lifetime
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2494748A (en) * | 1946-02-16 | 1950-01-17 | Smith Corp A O | Piston |
US2461873A (en) * | 1946-04-11 | 1949-02-15 | Bulova Watch Co Inc | Expansible plunger |
US2711159A (en) * | 1948-11-25 | 1955-06-21 | Daimler Benz Ag | Piston and piston type internal combustion engine |
US3292501A (en) * | 1963-12-24 | 1966-12-20 | Philips Corp | Device including at least one cylinder with a piston-shaped body which is movable therein |
US3385375A (en) * | 1966-08-01 | 1968-05-28 | Gen Dynamics Corp | Method and means for producing a long impulse for high energy rate forming apparatus |
US3485143A (en) * | 1967-10-09 | 1969-12-23 | Caterpillar Tractor Co | Friction welded internally cooled piston |
DE1751342B1 (en) * | 1968-05-14 | 1970-06-18 | Alcan Aluminiumwerke | Piston with ring-shaped cooling channel arranged in the piston head |
DE2533556A1 (en) * | 1975-07-24 | 1977-01-27 | Sulzer Ag | LIQUID-COOLED PISTON OF A PISTON ENGINE |
US4256022A (en) * | 1978-04-20 | 1981-03-17 | Elsbett L | Piston for reciprocating internal combustion engines, typically diesel engines |
EP0074156A2 (en) * | 1981-09-05 | 1983-03-16 | Mitsubishi Jukogyo Kabushiki Kaisha | Piston in an internal combustion engine |
EP0074156A3 (en) * | 1981-09-05 | 1984-02-08 | Mitsubishi Jukogyo Kabushiki Kaisha | Piston in an internal combustion engine |
US4493292A (en) * | 1983-06-09 | 1985-01-15 | Automotive Engine Associates | Heat piped piston |
FR2579674A1 (en) * | 1985-03-30 | 1986-10-03 | Man B & W Diesel Gmbh | Oil-cooled piston for IC engine |
US5339775A (en) * | 1994-01-03 | 1994-08-23 | Caterpillar Inc. | Cooling arrangement for a piston assembly |
US8544441B2 (en) | 2011-08-04 | 2013-10-01 | Federal-Mogul Ignition Company | Piston including a pair of cooling chambers |
US8869768B2 (en) | 2011-08-04 | 2014-10-28 | Federal-Mogul Corporation | Piston including a pair of cooling chambers |
US10753310B2 (en) | 2012-02-10 | 2020-08-25 | Tenneco Inc. | Piston with enhanced cooling gallery |
US8955486B2 (en) | 2012-02-10 | 2015-02-17 | Federal Mogul Corporation | Piston with enhanced cooling gallery |
EP2812553B1 (en) * | 2012-02-10 | 2019-10-16 | Tenneco Inc. | Piston with enhanced cooling gallery |
WO2013167103A3 (en) * | 2012-05-05 | 2014-02-13 | Mahle International Gmbh | Piston for an internal combustion engine |
US9494106B2 (en) | 2012-05-05 | 2016-11-15 | Mahle International Gmbh | Piston for an internal combustion engine |
WO2013167103A2 (en) * | 2012-05-05 | 2013-11-14 | Mahle International Gmbh | Piston for an internal combustion engine |
CN104884779A (en) * | 2012-11-02 | 2015-09-02 | 费德罗-莫格尔公司 | Piston with a cooling gallery partially filled with a thermally conductive metal-containing composition |
US9127619B2 (en) | 2012-11-02 | 2015-09-08 | Federal-Mogul Corporation | Piston with a cooling gallery partially filled with a thermally conductive metal-containing composition |
WO2014071274A1 (en) * | 2012-11-02 | 2014-05-08 | Federal-Mogul Corporation | Piston with a cooling gallery partially filled with a thermally conductive metal-containing composition |
US20180243817A1 (en) * | 2015-08-27 | 2018-08-30 | Ks Kolbenschmidt Gmbh | Piston of an Internal Combustion Engine Having Alkali Metal Cooling and Method for Production Thereof |
CN108025406A (en) * | 2015-08-27 | 2018-05-11 | Ks科尔本施密特有限公司 | The piston of internal combustion engine with alkali metal cooling and the manufacture method for piston |
US10569325B2 (en) * | 2015-08-27 | 2020-02-25 | Ks Kolbenschmidt Gmbh | Piston of an internal combustion engine having alkali metal cooling and method for production thereof |
CN108025406B (en) * | 2015-08-27 | 2020-06-16 | Ks科尔本施密特有限公司 | Piston for an internal combustion engine with alkali metal cooling and method for producing a piston |
WO2017032905A1 (en) * | 2015-08-27 | 2017-03-02 | Ks Kolbenschmidt Gmbh | Piston of an internal combustion engine having alkali metal cooling and method for production thereof |
US10294887B2 (en) | 2015-11-18 | 2019-05-21 | Tenneco Inc. | Piston providing for reduced heat loss using cooling media |
WO2017133945A1 (en) * | 2016-02-03 | 2017-08-10 | Mahle International Gmbh | Piston of an internal combustion engine |
US10774781B2 (en) | 2017-01-25 | 2020-09-15 | Tenneco, Inc. | Piston with anti-coking design features |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1678957A (en) | Piston cooling | |
US3221718A (en) | Piston construction | |
US2865348A (en) | Piston | |
US3221722A (en) | Piston | |
US3204617A (en) | Piston assembly | |
US1628652A (en) | Piston construction | |
JP2594905B2 (en) | Liquid-cooled engine cooling system | |
JPH0613861B2 (en) | Two-cycle engine piston | |
US1579332A (en) | Internal-combustion engine | |
US2045196A (en) | Fuel-injecting pump for internal combustion engines | |
US2500085A (en) | Engine | |
US1508522A (en) | Refrigerating machine | |
US2028434A (en) | Device for effectively dissipating heat from machine parts | |
US2659355A (en) | Combustion chamber of internalcombustion engines | |
US2691366A (en) | Air-cooled cylinder head for internal-combustion engines | |
JPS59145343A (en) | Piston for internal combustion engine | |
GB299222A (en) | Improvements in internal combustion engines | |
US2711159A (en) | Piston and piston type internal combustion engine | |
US1765230A (en) | Internal-combustion engine | |
US1015502A (en) | Explosive-engine. | |
US2792818A (en) | Two-cycle internal combustion engine | |
US2253739A (en) | Piston and ring | |
US1891638A (en) | Cylinder block construction | |
US2193884A (en) | Cylinder for opposed piston engines | |
GB288136A (en) | Improvements in or relating to pistons for internal combustion engines |