Patent US4763619A successfully refreshed from Google Patents.
US4763619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicylinder internal combustion engine utilizing split block with unitized cylinder head and liner
Assignee: Individual
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Filing: 1987-04-02
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Granted: 1988-08-16
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Expires: 2007-04-02
Abstract
Abstract Multicylinder internal combustion engine of the type having a crankshaft and a block comprised of first and second mating half sections joined in a common plane which passes through and along the axis of the crankshaft. The half sections provides a crankcase crankshaft bearing support and cylinder portions. A unitized cylinder head and sleeve construction is provided. A cooperative securing mechanism is provided for securing the unitized cylinder head and sleeve construction to the engine block.
Inventors
- 👤 Jay M. Eitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:34
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0058; F02F1/00; F02F1/002; F02F7/0053; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2275/00; F02B2275/20; F02B75/16; F02B75/18; F02B75/22; F02B75/222; F02B75/24; F02B75/243; F02F7/006; F02F2007/0063; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2201/04; F05C2201/0433; F05C2201/0436
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
In an internal combustion engine of the type having at least one cylinder and a crankshaft, an assembly comprised of first and second mating half sections joined in a common plane which passes through and along the axis of the crankshaft, each of said half sections providing crankcase, crankshaft bearing support, and cylinder water jacket portions, a unitized cylinder head and sleeve construction having a combustion chamber with a top surface therein and cooperative securing and sealing means for securing the unitized cylinder head and sleeve construction to the assembly in a location immediately adjacent the top surface of the combustion chamber, said cooperative securing and sealing means encircling each cylinder head and including tie bolts extending through the cylinder water jacket portions.
Claim 2
Dependent Claim
123 words
In an internal combustion engine of the type having at least one cylinder and a crankshaft, an assembly comprised of first and second mating half sections joined in a common plane which passes through and along the axis of the crankshaft, each of said half sections providing crankcase, crankshaft bearing support, and cylinder water jacket portions, a unitized cylinder head and sleeve construction having a combustion chamber with a top surface therein and cooperative securing and sealing means for securing the unitized cylinder head and sleeve construction to the assembly in a location immediately adjacent the top surface of the combustion chamber, said cooperative securing and sealing means encircling each cylinder head and including tie bolts extending through the cylinder water jacket portions.
Claim 3
Dependent Claim
48 words
An engine as in claim 1 wherein said cooperative securing and sealing means includes at least one recess and at least one protrusion said recess opening into an imaginery cylindrical surface which is concentric with the axis of the sleeve of the unitized cylinder head and sleeve construction.
Claim 4
Dependent Claim
29 words
An engine as in claim 1 together with additional sealing means establishing a water-tight seal between the lower extremity of the cylinder head and sleeve construction and the assembly.
Claim 5
Dependent Claim
44 words
An engine as in claim 1 wherein an annular flow passage extends around the sleeve together with at least one intake valve and at least one exhaust valve and circumferentially spaced openings formed in the cylinder head and surrounding the intake and exhaust valves.
Claim 6
Dependent Claim
49 words
An engine as in claim 1 wherein said cylinder head and sleeve construction is provided with a plurality of cylinder heads and sleeves together with a crankshaft rotatably mounted in the block, a plurality of pistons disposed in the sleeves and connecting rods connecting the pistons to the crankshaft.
Claim 7
Dependent Claim
27 words
An engine as in claim 5 wherein said pistons are arranged in a common plane and wherein said common plane extends along the axis of the crankshaft.
Claim 8
Dependent Claim
15 words
An engine as in claim 5 wherein said pistons are disposed in an opposing relationship.
Claim 9
Dependent Claim
36 words
An engine as in claim 5 wherein said pistons are arranged in a radial pattern and wherein said common plane passes through the axis of the crankshaft at right angles to the axis of the crankshaft.
Claim 10
Dependent Claim
23 words
An engine as in claim 1 together with tie bolts extending through the block and securing the half sections into a unitary assembly.
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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |