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Class Information
Number: 92/176
Name: Expansible chamber devices > Piston > With enclosed insulating space in piston part
Description: Apparatus in which the piston is provided with a sealed space in a portion thereof for the purpose of modifying the heat exchange properties of said piston portion.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7458313 |
Tubular piston for a piston engine and method producing a tubular piston |
Dec. 2, 2008 |
| 7427190 |
Hydraulic device for pumping molten metal and/or controlling a molten metal flow |
Sep. 23, 2008 |
| 7003878 |
Method for producing a ring support with a sheet metal cooling channel welded thereon |
Feb. 28, 2006 |
| 6994014 |
Closed cavity piston for hydrostatic power units and method of manufacturing the same |
Feb. 7, 2006 |
| 6904876 |
Sodium cooled pistons for a free piston engine |
Jun. 14, 2005 |
| 6662709 |
Hollow piston for a piston engine and method for producing a hollow piston |
Dec. 16, 2003 |
| 6532655 |
Method of manufacturing hollow piston for compressors |
Mar. 18, 2003 |
| 6526869 |
Piston for compressors and method for producing the same |
Mar. 4, 2003 |
| 6293185 |
Piston for a hydrostatic cylinder block |
Sep. 25, 2001 |
| 5988044 |
Piston having insulated cap |
Nov. 23, 1999 |
| 5461966 |
Measuring gas pump |
Oct. 31, 1995 |
| 5394788 |
Head for articulated piston |
Mar. 7, 1995 |
| 5309818 |
Method for the manufacture of a cooled piston |
May. 10, 1994 |
| 5282411 |
Heat-insulating piston with middle section of less dense but same material |
Feb. 1, 1994 |
| 5207147 |
Method for the manufacture of a piston head having a cooling chamber and piston head obtained from said method |
May. 4, 1993 |
| 5147094 |
Substantially zero leakage path sealing assembly with insulating member |
Sep. 15, 1992 |
| 5085185 |
Powder-lubricant piston ring for diesel engines |
Feb. 4, 1992 |
| 5031511 |
Piston for an hydraulic brake, in particular for automotive vehicles |
Jul. 16, 1991 |
| 4939984 |
Investment-cast piston crown cap with encapsulated non-metallic insulating core |
Jul. 10, 1990 |
| 4891875 |
Method for manufacturing a piston for an internal combustion engine |
Jan. 9, 1990 |
| 4848291 |
Heat-insulating piston structure |
Jul. 18, 1989 |
| 4831917 |
Multiple piece piston for an internal combustion engine |
May. 23, 1989 |
| 4742759 |
Ceramic insert cast piston |
May. 10, 1988 |
| 4736676 |
Composite piston |
Apr. 12, 1988 |
| 4651629 |
Piston of refractory materials, particularly for compression-ignition engines |
Mar. 24, 1987 |
| 4604945 |
Thermally insulated piston |
Aug. 12, 1986 |
| 4599772 |
Method for reinforcement of pistons of aluminum or aluminum alloy |
Jul. 15, 1986 |
| 4593608 |
Lightweight piston-rod assembly for a reciprocating machine |
Jun. 10, 1986 |
| 4553472 |
Pistons and method for their manufacture |
Nov. 19, 1985 |
| 4552057 |
Thermally insulated piston |
Nov. 12, 1985 |
| 4531502 |
Thermally insulated piston |
Jul. 30, 1985 |
| 4493292 |
Heat piped piston |
Jan. 15, 1985 |
| 4450610 |
Method of making a piston |
May. 29, 1984 |
| 4375782 |
Composite piston for internal combustion engines |
Mar. 8, 1983 |
| 4372194 |
Internal combustion engine piston |
Feb. 8, 1983 |
| 4270494 |
Insulated oil cooled piston assembly |
Jun. 2, 1981 |
| 4256022 |
Piston for reciprocating internal combustion engines, typically diesel engines |
Mar. 17, 1981 |
| 4253430 |
Insulated oil cooled piston assembly |
Mar. 3, 1981 |
| 4245611 |
Ceramic insulated engine pistons |
Jan. 20, 1981 |
| 4242948 |
Insulated composite piston |
Jan. 6, 1981 |
| 4237846 |
Piston |
Dec. 9, 1980 |
| 4120081 |
Manufacture of pistons incorporating a thermal barrier |
Oct. 17, 1978 |
| 4083292 |
Piston with high top ring location |
Apr. 11, 1978 |
| 4067670 |
Internal combustion engine with insulated piston |
Jan. 10, 1978 |
| 4040339 |
Axially adjustable clutch pistons |
Aug. 9, 1977 |
| 4024801 |
EXTENDED INSULATED HOT HEAD PISTON WITH EXTENDED INSULATED HOT CYLINDER WALLS |
May. 24, 1977 |
| 3959974 |
Internal combustion engine |
Jun. 1, 1976 |
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