Patent US4265495A successfully refreshed from Google Patents.
US4265495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine block and crankshaft bearing seal
Assignee: Deutz Allis Corp
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Filing: 1979-08-20
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Granted: 1981-05-05
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Expires: 1999-08-20
Abstract
Abstract An engine block and crankshaft bearing seal sealing the main bearing cap with the block and the periphery of the crankshaft.
Inventors
- 👤 Robert R. Backlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:37
CPC Classifications
F; F16; F16C; F16C9/00; F16C9/02; F02; F02F; F02F11/00; F02F11/007; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
A main bearing and crankshaft seal assembly comprising, a housing forming a bearing support, a crankshaft, a bearing cap, bearing shells received in said housing and bearing cap forming a journal for said crankshaft when said bearing cap is fastened to said housing, lateral and horizontal interfaces between said bearing cap and housing and extending to a point adjacent said crankshaft defining seal grooves, linear seals received in said seal grooves, a seal carrier ring embracing said crankshaft, an inner peripheral seal sealing said seal carrier ring with said crankshaft, an outer peripheral seal on said seal carrier ring sealing said seal carrier ring with said bearing cap and said housing and engaging said linear seals to provide a continuous seal around the crankshaft and said bearing cap for said bearing assembly.
Claim 2
Dependent Claim
132 words
A main bearing and crankshaft seal assembly comprising, a housing forming a bearing support, a crankshaft, a bearing cap, bearing shells received in said housing and bearing cap forming a journal for said crankshaft when said bearing cap is fastened to said housing, lateral and horizontal interfaces between said bearing cap and housing and extending to a point adjacent said crankshaft defining seal grooves, linear seals received in said seal grooves, a seal carrier ring embracing said crankshaft, an inner peripheral seal sealing said seal carrier ring with said crankshaft, an outer peripheral seal on said seal carrier ring sealing said seal carrier ring with said bearing cap and said housing and engaging said linear seals to provide a continuous seal around the crankshaft and said bearing cap for said bearing assembly.
Claim 3
Dependent Claim
56 words
A main bearing and crankshaft seal assembly as set forth in claim 1 including an oil pan mounted under said bearing cap and housing, a gasket positioned between the mating surfaces of said bearing cap and housing and said oil pan to thereby provide a seal between the ends of said linear seals and said gasket.
Claim 4
Dependent Claim
28 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said seal carrier ring defines an annular recess for receiving said outer peripheral seal.
Claim 5
Dependent Claim
38 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said seal carrier ring defines a recess on its inner periphery for receiving said inner peripheral seal for sealing the surface on said crankshaft.
Claim 6
Dependent Claim
40 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said linear seals define two segments forming an L-shaped seal extending from said crankshaft to the end of the interface between said bearing cap and housing.
Claim 7
Dependent Claim
52 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said linear seals define two segments to form L-shaped seals, said carrier defines a recess partially intersecting the seal grooves receiving said linear seals to provide an interference fit between said outer peripheral seal and said linear seals.
Claim 8
Dependent Claim
32 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said bearing cap includes bolts for fastening said bearing cap to said housing to compress said linear seals.
Claim 9
Dependent Claim
27 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said bearing assembly defines a rear main bearing of an internal combustion engine.
Claim 10
Dependent Claim
85 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said linear seals define two segments forming an L-shaped cross section, said grooves receiving said linear seals extend across said outer peripheral seal on said seal ring carrier, means of defining a groove for receiving said outer peripheral seal partially intersecting the grooves of said linear seals causing an interference fit with said outer peripheral seal to thereby provide a fluid tight seal between said linear seals and outer peripheral seal.
Claim 11
Dependent Claim
60 words
A main bearing and crankshaft seal assembly as set forth in claim 1 wherein said seal on the outer periphery of said seal carrier ring defines a seal recess partially intersecting the seal grooves for said linear seals thereby causing an interference fit between said linear seals and said outer peripheral seal to assure a fluid-tight seal in said assembly.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |