Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means
Patent
1982-03-29
1985-04-02
Richter, Sheldon J.
Expansible chamber devices
With lubricating means
Piston has lubricant retaining or conducting means
92165PR, 92177, 92216, 92219, 92188, 92247, F01B 3110
Patent
active
045080194
ABSTRACT:
A reduced impact piston assembly including a cylindrical body with a cavity formed therein and having a cross-bore formed therethrough which intersects the cavity. The cross-bore receives a piston pin which has an exposed intermediate portion aligned with the cavity for attachment of a connecting rod thereto. A wide groove is formed about the outer circumference of the cylindrical body which has its center aligned with the center of the cross-bore. Positioned within this groove are a pair of C-shaped inserts, the legs of which abut the ends of the piston pin to prevent axial movement of the pin within the cylindrical body. The C-shaped inserts cooperate with the pin to form a closed loop having a circumferential length which is larger than the circumferential length of the cylinder body. In addition, a portion of each of the C-shaped inserts is in constant contact with a cylinder wall. The C-shaped inserts are constructed of a material having a thermal expansion which is similar to the thermal expansion of the cylinder wall and less than the thermal expansion of the cylindrical body. These features cooperate together to insure that constant contact is maintained between the inserts and the cylinder wall at both cold and hot operating conditions thereby minimizing the presence of piston slap within the cylinders of an engine. The reduction of piston slap will minimize the noise of the engine and greatly reduce the amount of cavitation experienced on the outside of the cylinder wall.
REFERENCES:
patent: 774186 (1904-11-01), Ladd
patent: 1366415 (1921-01-01), Pearson
patent: 1381260 (1921-06-01), Watson
patent: 1438132 (1922-12-01), Nelson
patent: 1595613 (1926-10-01), Mullern
patent: 1838901 (1931-12-01), Blackmore
patent: 2049922 (1936-08-01), Nienow
patent: 2086667 (1937-07-01), Nelson
patent: 2208782 (1940-07-01), Workman
patent: 2255217 (1941-09-01), Hiyl
patent: 2267724 (1941-12-01), Fahlman
patent: 2289994 (1942-07-01), Pillar
patent: 2322138 (1943-06-01), Jenny
patent: 2422327 (1947-06-01), Winslow
patent: 2849266 (1958-08-01), Glockl
patent: 2966382 (1960-12-01), Olsen
patent: 3061175 (1962-10-01), Schmidt
patent: 3115070 (1963-12-01), Tsang
patent: 3521531 (1970-07-01), Kaesemodel
patent: 3805677 (1974-04-01), Clary et al.
patent: 4158328 (1979-06-01), Beardmore
patent: 4207808 (1980-06-01), Eisbett et al.
Hauser, Jr. Herbert J.
Kabele Dennis F.
Deere & Company
Richter Sheldon J.
Smith Randolph A.
LandOfFree
Reduced impact piston assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduced impact piston assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced impact piston assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1085901