US3739657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting rod lubrication oil hole
Assignee: Deutz Allis Corp
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Filing: 1972-01-07
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Granted: 1973-06-19
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Expires: 1992-01-07
Abstract
Abstract A connecting rod with a diagonal lubrication hole to improve the load carrying capacities of the rod end bearings and improve the fatigue life of the connecting rod.
Inventors
- 👤 P Patchen
- 👤 J Berti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:02
CPC Classifications
F; F16; F16C; F16C7/00; F16C7/02; F16C7/023; F01; F01M; F01M11/00; F01M11/02; F01M2011/025; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2152; Y10T74/2162
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
A connecting rod comprising a crankpin end, a wrist pin end and a shank connecting said ends, said crankpin end defining a crankpin bore, said wrist pin end defining a wrist pin bore, said shank defining a straight lubricating oil hole disposed diagonally with the longitudinal center line of said connecting rod, port means in said crankpin bore communicating with said lubricating oil hole and angularly spaced in said bore from said center line, port means in said wrist pin bore communicating with said lubricating oil hole and angularly spaced in said bore to the opposite eide of said center line from said port means in said crankpin bore thereby providing a continuous smooth periphery in said hole to extend fatigue life of said rod and provide continuous bearing surface at the high pressure areas of said bores adjacent the longitudinal center line of said rod.
Claim 2
Dependent Claim
146 words
A connecting rod comprising a crankpin end, a wrist pin end and a shank connecting said ends, said crankpin end defining a crankpin bore, said wrist pin end defining a wrist pin bore, said shank defining a straight lubricating oil hole disposed diagonally with the longitudinal center line of said connecting rod, port means in said crankpin bore communicating with said lubricating oil hole and angularly spaced in said bore from said center line, port means in said wrist pin bore communicating with said lubricating oil hole and angularly spaced in said bore to the opposite eide of said center line from said port means in said crankpin bore thereby providing a continuous smooth periphery in said hole to extend fatigue life of said rod and provide continuous bearing surface at the high pressure areas of said bores adjacent the longitudinal center line of said rod.
Claim 3
Dependent Claim
39 words
A connecting rod as set forth in claim 1 including means defining a spray passage on the wrist pin end of said connecting rod adapted for spraying lubricating oil axially from the wrist pin end of said connecting rod.
Claim 4
Dependent Claim
43 words
A connecting rod as set forth in claim 1 wherein said shank defines said lubricating oil hole in communication with at least one of said bores through said port means at essentially a point of tangency of said oil hole with said bore.
Claim 5
Dependent Claim
47 words
A connecting rod as set forth in claim 1 wherein said shank defines said lubricating oil hole connected with at least one of said bores wherein the extension of the axis of said lubrication oil hole forms a chordal configuration with at least one of said bores.
Claim 6
Dependent Claim
48 words
A connecting rod as set forth in claim 1 wherein said crankpin end defines a two piece bearing including a shank end defining an arcuate surface and a cap defining a mating arcuate surface to define a plane of separation normal to the longitudinal axis of said rod.
Claim 7
Dependent Claim
52 words
A connecting rod as set forth in claim 1 wherein said crankpin end defines a two-partite type bearing including a shank end defining an arcuate surface and a cap defining a mating arcuate surface, said two-partite type bearing defines a plane of separation incline to the longitudinal axis of said connecting rod.
Claim 8
Dependent Claim
44 words
A connecting rod as set forth in claim 6 wherein said shank defines a short portion and a long portion defining said arcuate surface, said shank defines said lubrication oil hole extending into said short portion of said crankpin end of said connecting rod.
Claim 9
Dependent Claim
38 words
A connecting rod as set forth in claim 1 wherein said rod defines a longitudinal axis and said lubricating oil hole derines an axis with said axes lying in a plane perpendicular to the axes of said bores.
Claim 10
Dependent Claim
21 words
A connecting rod as set forth in claim 8 wherein said rod defines symmetrical halves on opposing sides of said plane.
Claim 11
Dependent Claim
44 words
A connecting rod as set forth in claim 1 wherein each rod end includes at least one bearing insert defining a lubrication oil groove in communication with said lubricating oil hole and extending angularly in said bore on the lateral portion of said rod.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |