US3782344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Motorenfabrik Hatz GmbH and Co KG
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Filing: 1972-05-12
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Granted: 1974-01-01
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Expires: 1992-05-12
Abstract
Abstract In an internal combustion engine having at least one cylinder defined by a cylinder head and a cylinder block, attaching means connecting said cylinder head to said cylinder block, said cylinder including a combustion chamber, intake and exhaust ports communicating with said combustion chamber and a connection means connecting said ports to a pipe, the improvement which comprises forming said pipe and connection means of at least two molded elements which are held on the engine in the required operational position by the attaching means connecting together said cylinder heads to said cylinder block.
Inventors
- 👤 J Schmuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:04
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10078; F02F; F02F7/00; F02F7/0065; F02F7/008; F02M35/10314; F02M35/10334; F02M35/1034; F02M35/10347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
In an internal combustion engine having at least one cylinder defined by a cylinder head and a cylinder block, attaching means connecting said cylinder head to said cylinder block, said cylinder including a combustion chamber, intake and exhaust ports communicating with said combustion chamber and a connection means connecting said ports to a pipe, the improvement which comprises forming said pipe and connection means of at least two molded elements produced from multilayered sheet metal which are held on the engine in the required operational position by the attaching means connecting together said cylinder heads to said cylinder block, at least one of the molded elements being clamped firmly between the cylinder head and cylinder block, said clamped molded element projecting beyond the periphery of said connected cylinder head and cylinder block, the section of the molded element projecting beyond the periphery of the cylinder head and cylinder block serving as a screening damping agent for the noises radiating from the engine.
Claim 2
Dependent Claim
162 words
In an internal combustion engine having at least one cylinder defined by a cylinder head and a cylinder block, attaching means connecting said cylinder head to said cylinder block, said cylinder including a combustion chamber, intake and exhaust ports communicating with said combustion chamber and a connection means connecting said ports to a pipe, the improvement which comprises forming said pipe and connection means of at least two molded elements produced from multilayered sheet metal which are held on the engine in the required operational position by the attaching means connecting together said cylinder heads to said cylinder block, at least one of the molded elements being clamped firmly between the cylinder head and cylinder block, said clamped molded element projecting beyond the periphery of said connected cylinder head and cylinder block, the section of the molded element projecting beyond the periphery of the cylinder head and cylinder block serving as a screening damping agent for the noises radiating from the engine.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |