Countershaft
First Claim
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1. A countershaft comprising:
- a. an axial channel formed along the longitudinal axis of said countershaft;
b. a first bearing zone formed on an exterior surface of said countershaft, wherein said first bearing zone comprises;
i. a first groove and a first taper positioned adjacent one another;
ii. a second groove and a second taper positioned adjacent one another, wherein said second groove and said second taper are rotationally offset from said first groove and said first taper by 120 degrees;
iii. a third groove and a third taper positioned adjacent one another, wherein said third groove and said third taper are rotationally offset from said second groove and said second taper by 120 degrees;
c. a second bearing zone formed on said exterior surface of said countershaft, wherein said second bearing zone includes a groove and a taper positioned adjacent one another, and wherein said first, second, and third grooves in said first zone and said groove in said second zone are rotationally offset from one another;
d. a first radial hole formed in said countershaft, wherein said first radial hole fluidly connects said axial channel to said groove in said first bearing zone;
e. a second radial hole formed in said countershaft, wherein said second radial hole fluidly connects said axial channel to said groove in said second bearing zonef. a third radial hole fluidly connecting said axial channel to said second groove in said first bearing zone;
g. a fourth radial hole fluidly connecting said axial channel to said third groove in said first bearing zone.
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Accused Products
Abstract
A countershaft as disclosed herein may include one or more bearing zones along its axial length. Each bearing zone may include one or more radial holes in fluid communication with one or more grooves, respectively, and one or more axial channels formed along the longitudinal length of the countershaft. Each groove may be positioned adjacent an interface between a rotating member and a non-rotating member and include one or more features therein, such as a profile and/or taper.
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Citations
20 Claims
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1. A countershaft comprising:
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a. an axial channel formed along the longitudinal axis of said countershaft; b. a first bearing zone formed on an exterior surface of said countershaft, wherein said first bearing zone comprises; i. a first groove and a first taper positioned adjacent one another; ii. a second groove and a second taper positioned adjacent one another, wherein said second groove and said second taper are rotationally offset from said first groove and said first taper by 120 degrees; iii. a third groove and a third taper positioned adjacent one another, wherein said third groove and said third taper are rotationally offset from said second groove and said second taper by 120 degrees; c. a second bearing zone formed on said exterior surface of said countershaft, wherein said second bearing zone includes a groove and a taper positioned adjacent one another, and wherein said first, second, and third grooves in said first zone and said groove in said second zone are rotationally offset from one another; d. a first radial hole formed in said countershaft, wherein said first radial hole fluidly connects said axial channel to said groove in said first bearing zone; e. a second radial hole formed in said countershaft, wherein said second radial hole fluidly connects said axial channel to said groove in said second bearing zone f. a third radial hole fluidly connecting said axial channel to said second groove in said first bearing zone; g. a fourth radial hole fluidly connecting said axial channel to said third groove in said first bearing zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A bearing with axial variations comprising:
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a. a main body having a bore therein; b. a first zone in said bore, wherein said first zone includes a groove; c. a second zone in said bore, wherein said second zone includes a groove, and wherein said second zone is rotationally offset with respect to said first zone; and
,d. a third zone in said bore, wherein said third zone includes a groove, and wherein said third zone is rotationally offset with respect to said second zone. - View Dependent Claims (12, 13, 14, 15)
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16. A method of accommodating a plurality of forces experienced by a shaft, said method comprising the steps of:
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a. positioning a bearing with axial variations around said shaft, wherein said bearing with axial variations comprises; i. a main body having a bore therein; ii. a first zone in said bore, wherein said first zone includes a groove; iii. a second zone in said bore, wherein said second zone includes a groove, and wherein said second zone is rotationally offset with respect to said first zone; iv. a third zone in said bore, wherein said third zone includes a groove, and wherein said third zone is rotationally offset with respect to said second zone; b. allowing said first zone to accommodate a first force experienced by said shaft; and
,c. allowing said second zone to accommodate a second force experienced by said shaft, wherein said first and second forces are not equal in either a direction or a magnitude. - View Dependent Claims (17, 18, 19, 20)
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Specification