F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/148
F04B 1/12 (2006.01)
Patent
CA 1204965
Filled Piston With Central Oil Tube Abstract A filled piston has a tube extending axially through the core of filler material. The tube provides the passage through which hydraulic fluid passes to lubricate the bearing surfaces of components associated with the piston. This eliminates the problem of the hydraulic fluid eroding the filler material and thus the need for visual inspection of the passage through the piston.
422345
Adomis Peter P. Jr.
Martin Millard J.
Caterpillar Tractor Co.
Smart & Biggar
LandOfFree
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