Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via radially directed...
Patent
1995-12-26
1997-08-26
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Having lubricating means
For coupling having torque transmitted via radially directed...
464136, 137561A, F16C 124, F16N 100
Patent
active
056605897
ABSTRACT:
A cross member for a universal joint includes a body portion having at least one trunnion extending radially outwardly from the body portion, the trunnion including an outer bearing surface. A bearing cup having an open end and an inner bearing surface is mounted on the trunnion such that the inner bearing surface of the bearing cup is disposed co-axially about the outer bearing surface of the trunnion. A bearing is disposed between the inner bearing surface of the bearing cup and the outer bearing surface of the trunnion to enable rotation of the trunnion relative to the bearing cup. A trunnion bore is positioned within the trunnion and it communicates with the bearing to enable lubricant within the trunnion bore to reach the bearing. A lubrication conduit communicates with the trunnion bore to supply a lubricant to the trunnion bore. A retention valve is positioned within the lubrication conduit for preventing drainback of the lubricant within the lubrication conduit. The retention valve includes a valve body extending along a portion of the length of the conduit, with the valve body having an outer surface approximately the same size as the inner surface of the lubrication conduit. The retention valve also includes a plurality of grooves in the surface of the valve body, with the grooves extending generally in the direction of the length of the conduit, and the grooves being large enough to enable the passage of the lubricant under pressure past the retention valve, but small enough to prevent drainback of lubricant within the lubrication conduit.
REFERENCES:
patent: 2209855 (1940-07-01), Slaught
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patent: 4103512 (1978-08-01), McElwain et al.
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patent: 4936133 (1990-06-01), Orain
patent: 5073057 (1991-12-01), Lathrop et al.
patent: 5188564 (1993-02-01), Keller
Dana Corporation
Marcelo Emmanuel M.
Stodola Daniel P.
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