US5020319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow heat-resisting body assembly for internal combustion engine
Assignee: Niterra Co Ltd
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Filing: 1990-07-26
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Granted: 1991-06-04
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Expires: 2010-07-26
Abstract
Abstract A heat-resistant casing for an internal combustion engine comprises an outer wall member made of an aluminum alloy by casting and an inner wall member made of ceramic and embedded in the outer wall member at the time of casting of the outer wall member. A coolant jacket is formed in the outer wall member and is communicated with a source of cooling medium so that cooling medium circulates through the coolant jacket.
Inventors
- 👤 Tooru Matsuura
- 👤 Mitsuyoshi Kawamura
- 👤 Yoshinori Narita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/16; F01N13/08; F01N13/10; F01N13/102; F01N13/14; F01N3/00; F01N3/02; F01N3/04; F01N3/043; F01N3/046; F01P; F01P3/00; F01P3/12; F02; F02B; F02B37/00; F02B37/02; F02B39/00; F02B39/005; F02B77/00; F02B77/11; F16; F16L; F16L53/00; F16L53/70; F28; F28D; F28D7/00; F28D7/02; F28D7/024; F28F; F28F13/00; F01N2310/00; F01N2530/00; F01N2530/06; F01N2530/26; F01P2060/00; F01P2060/16; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
An exhaust manifold for an internal combustion engine, comprising: an outer tubular member made of an aluminum alloy by casting; an inner tubular member made of aluminum titanate and embedded in said outer tubular member at the time of casting of said outer tubular member; and a coolant jacket formed in said outer tubular member wherein said coolant jacket is formed into a coiled shape.
Claim 2
Dependent Claim
65 words
An exhaust manifold for an internal combustion engine, comprising: an outer tubular member made of an aluminum alloy by casting; an inner tubular member made of aluminum titanate and embedded in said outer tubular member at the time of casting of said outer tubular member; and a coolant jacket formed in said outer tubular member wherein said coolant jacket is formed into a coiled shape.
Claim 3
Dependent Claim
20 words
An exhaust manifold as set forth in claim 1, further comprising means for circulating cooling medium through said coolant jacket.
Claim 4
Dependent Claim
18 words
An exhaust manifold as set forth in claim 1 wherein said coolant jacket is communicated with a radiator.
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) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |