SEALED JOINT ASSEMBLY

• Main Authors: JOSEPH E ALLEN, DEAN M PETERSON, ROBERT A RAPUK
• Format: Patent
• Language: English
• Published: 26.05.1998
• Edition: 6
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRAILERS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To protect a seal effectively from excessive pressure by installing a first member with a terminal part formed with a center bore, and an inner flow communicating means being terminated in the bore after extending as far as the specified distance from the outer surface, respectively. SOLUTION: An equalizer 10 of construction machinery has a central part and a terminal part which has a bore 26 and a side wall being opposed to an outer surface. This bore has a pair of ring paths 42 and 46. Two seals 58 and 60 are positioned in the bore 26. This seal 58 is set up in the ring path 42 and the seal 60 in the ring path 46, respectively. An inner fluid communicating means 82 is positioned in a terminal part and it is terminated in the bore 26 of a bearing assembly 50 after extending from the outer surface. This inner fluid communicating means 82 comprises an accepting passage 86 with both first and second terminal parts 87 and 88. The first terminal part 87 of the accepting passage 86 extends as far as the specified distance to the inside from the outer surface and terminated in the terminal part. With this constitution, both the seals 58 and 60 can be effectively protected from any undue pressure.