Patent US3898802A successfully refreshed from Google Patents.
US3898802A
Expired / Lapsed
US
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Exhaust gas purifying reactor
Assignee: Mazda Motor Corp
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Filing: 1973-07-02
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Granted: 1975-08-12
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Expires: 1993-07-02
Abstract
Abstract An exhaust gas purifying reactor for an internal combustion engine which comprises an inner shell and an outer shell surrounding the inner shell with an adiabatic space formed therebetween. The inner and outer shells are rigidly connected by at least one of intake and exhaust passages thereby to support the inner shell within the outer shell. The other of the intake and exhaust passages which does not rigidly connect the inner shell relative to the outer shell supports the inner shell so as to permit the latter to move sealingly and slidably in the axial and radially outward direction of the axis of the other of the intake and exhaust passages.
Inventors
- 👤 Tomoo Tadokoro
- 👤 Masayuki Kawata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:49
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/10; F01N13/102; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
A reactor for an internal combustion engine including an engine block, which comprises in combination: an inner shell forming a reaction chamber therein; an outer shell surrounding said inner shell and separated therefrom to define a space therebetween; a pair of intake tubes defining intake passages for introducing exhaust gas from said engine into said reaction chamber; an exhaust tube means defining an exhaust passage for discharging the exhaust gas from said reaction chamber; said inner and outer shells being rigidly connected with each other by one of said intake tubes to reduce noise and vibration of the reactor during engine operation while the other of said intake tubes is movably connected between said shells for supporting said inner shell to move in the axial and radially outward directions of said other intake due to the heat expansion of said inner shell.
Claim 2
Dependent Claim
142 words
A reactor for an internal combustion engine including an engine block, which comprises in combination: an inner shell forming a reaction chamber therein; an outer shell surrounding said inner shell and separated therefrom to define a space therebetween; a pair of intake tubes defining intake passages for introducing exhaust gas from said engine into said reaction chamber; an exhaust tube means defining an exhaust passage for discharging the exhaust gas from said reaction chamber; said inner and outer shells being rigidly connected with each other by one of said intake tubes to reduce noise and vibration of the reactor during engine operation while the other of said intake tubes is movably connected between said shells for supporting said inner shell to move in the axial and radially outward directions of said other intake due to the heat expansion of said inner shell.
Claim 3
Dependent Claim
21 words
A reactor as claimed in claim 1 wherein said exhaust tube means is movably connected between said inner and outer shells.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |