US2012264564A1PendingUtilityA1

Powdered metal variator components

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Assignee: RUEBUSCH RICHARDPriority: Jan 24, 2007Filed: Apr 10, 2012Published: Oct 18, 2012
Est. expiryJan 24, 2027(~0.5 yrs left)· nominal 20-yr term from priority
Inventors:Richard RuebuschAdrian Lee
B22F 2998/10F16H 55/32B22F 2003/247C22C 33/0264B22F 2003/248F16H 15/40F16H 2055/325Y10T428/8305F16H 57/0409
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Claims

Abstract

The use of powder metal components in a variator is disclosed. Traction fluid of various sorts may be used in the variators, not just high performance synthetics or application specific lubricants.

Claims

exact text as granted — not AI-modified
1 . A variator component comprising a powder metal rolling surface adapted to wear by micropitting. 
     
     
         2 . A variator component of  claim 1  that wears at a rate greater than 0.0035 mm per 500 hours of use. 
     
     
         3 . A variator component of  claim 1  having a wear coefficient greater than 10 −9  mmcubed (Nm) −1 . 
     
     
         4 . A variator component of  claim 1  having a wear coefficient greater than 10 −8  mmcubed (Nm) −1 . 
     
     
         5 . A variator component of  claim 1  where the powdered metal is a low alloy steel. 
     
     
         6 . A variator component of  claim 1  where the component is a disc. 
     
     
         7 . A variator component of  claim 1  where the component is a roller. 
     
     
         8 . A variator component of  claim 1  where the component is a sphere. 
     
     
         9 . A variator component comprising powder metal having a porous morphology. 
     
     
         10 . A variator component of  claim 9  comprising pores that comprise at least 2.5 percent by volume of the powdered metal material. 
     
     
         11 . A variator component of  claim 9  where the powdered metal is a low alloy steel. 
     
     
         12 . A variator component of  claim 9  where the component is a race. 
     
     
         13 . A variator component of  claim 9  where the component is a roller. 
     
     
         14 . A variator component of  claim 9  where the component is a sphere. 
     
     
         15 . A variator component comprising powder metal having a density of 7.6 g/cc or less. 
     
     
         16 . A variator component of  claim 15  having a density of 7.5 g/cc or less 
     
     
         17 . A variator component of  claim 15  in the range 7.1 g/cc to 7.6 g/cc.

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