Patent US3839592A successfully refreshed from Google Patents.
Patent US3882842A successfully refreshed from Google Patents.
US3882842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder liner support
Assignee: Caterpillar Inc
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Filing: 1974-01-28
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Granted: 1975-05-13
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Expires: 1994-01-28
Abstract
Abstract An internal combustion engine, having a cylinder head mounted on a cylinder block, is provided with means for supporting a cylinder liner therein, which comprises a yieldable spacer for compensating for excess loads exerted on the liner imparted by torqueing of the head to the block, together with a semiresilient support sleeve, which acts as a stiff spring to accommodate thermal expansion and contraction of the cylinder liner occurring during normal operating cycles of the engine. The yieldable spacer is chevron-shaped in cross section and has a resilient annular positioner member associated therewith. Radial movement-preventing means in the form of an annular flange on the cylinder liner, closely fitted within a bore in the block, is also provided. Alternatively, the radial movement-preventing means is an annular flange on the outer periphery of the cylinder liner adjacent its topmost end, having a plurality of circumferentially-spaced slots therein, and fitted within the cylinder bore.
Inventors
- 👤 John M Bailey
- 👤 Michael K Stratton
- 👤 Alan W Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:04
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/10; F02F1/16; F02F1/163
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
In an internal combustion engine, a cylinder head mounted on a cylinder block, said block defining a top deck portion, a cylinder bore in said cylinder block, a generally cylindrical cylinder liner disposed within said cylinder bore, a reduced diameter portion of said cylinder liner defining an annular shoulder intermediate said top deck and said shelf, means for supporting said cylinder liner comprising a support sleeve circumscribing said reduced diameter portion of said cylinder liner having an end thereof in abutment with said annular shoulder, wherein said support sleeve is relatively thin walled with respect to said cylinder liner whereby it possesses a relatively lower spring rate with respect to said sleeve, and further including means for preventing radial movement of said cylinder liner in said block comprising a shelf in said block intermediate said top deck and lower wall defining a bore, and an annular flange on said cylinder liner closely fitted within said last-named bore.
Claim 2
Dependent Claim
157 words
In an internal combustion engine, a cylinder head mounted on a cylinder block, said block defining a top deck portion, a cylinder bore in said cylinder block, a generally cylindrical cylinder liner disposed within said cylinder bore, a reduced diameter portion of said cylinder liner defining an annular shoulder intermediate said top deck and said shelf, means for supporting said cylinder liner comprising a support sleeve circumscribing said reduced diameter portion of said cylinder liner having an end thereof in abutment with said annular shoulder, wherein said support sleeve is relatively thin walled with respect to said cylinder liner whereby it possesses a relatively lower spring rate with respect to said sleeve, and further including means for preventing radial movement of said cylinder liner in said block comprising a shelf in said block intermediate said top deck and lower wall defining a bore, and an annular flange on said cylinder liner closely fitted within said last-named bore.
Claim 3
Dependent Claim
197 words
In an internal combustion engine, a cylinder head mounted on a cylinder block, said block defining a top deck portion, a cylinder bore in said cylinder block, a cavity in said block including a lower wall defining a shelf located intermediate the top deck and the lower wall, a generally cylindrical cylinder liner disposed within said cylinder bore, a reduced diameter portion of said cylinder liner defining an annular shoulder intermediate said top deck and said shelf and means for supporting said cylinder liner comprising a support sleeve circumscribing said reduced diameter portion of said cylinder liner having an end thereof in abutment with said annular shoulder, and a yieldable spacer circumscribing said reduced diameter portion and in abutment with the other end of said support sleeve and said shelf whereby excess loads on and thermal cycling of said cylinder liner are accommodated, wherein said support sleeve is relatively thin walled with respect to said cylinder liner whereby it possesses a relatively lower spring rate with respect to said sleeve, and further including a resilient annular member disposed between said reduced diameter portion of said liner and said yieldable spacer so as to radially position said spacer.
Claim 4
Dependent Claim
197 words
In an internal combustion engine, a cylinder head mounted on a cylinder block, said block defining a top deck portion, a cylinder bore in said cylinder block, a cavity in said block including a lower wall defining a shelf located intermediate the top deck and the lower wall, a generally cylindrical cylinder liner disposed within said cylinder bore, a reduced diameter portion of said cylinder liner defining an annular shoulder intermediate said top deck and said shelf and means for supporting said cylinder liner comprising a support sleeve circumscribing said reduced diameter portion of said cylinder liner having an end thereof in abutment with said annular shoulder, and a yieldable spacer circumscribing said reduced diameter portion and in abutment with the other end of said support sleeve and said shelf whereby excess loads on and thermal cycling of said cylinder liner are accommodated, wherein said support sleeve is relatively thin walled with respect to said cylinder liner whereby it possesses a relatively lower spring rate with respect to said sleeve, and further including a resilient annular member disposed between said reduced diameter portion of said liner and said yieldable spacer so as to radially position said spacer.
Claim 5
Dependent Claim
13 words
The invention of claim 1 wherein said yieldable spacer is chevron-shaped in cross-section.
Claim 6
Dependent Claim
26 words
The invention of claim 1 wherein said shelf is formed in a counterbore in said lower wall whereby said yieldable spacer is fitted within said counterbore.
Claim 7
Dependent Claim
38 words
The invention of claim 1 wherein said radial movement-preventing means comprises an annular guide flange on the outer periphery of said cylinder liner adjacent to its uppermost end, said guide flange being closely fitted within said cylinder bore.
Claim 8
Dependent Claim
17 words
The invention of claim 5 wherein said annular guide flange has a plurality of circumferentially-spaced slots therein.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |