US3703083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor
Assignee: Mazda Motor Corp
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Filing: 1971-01-12
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Granted: 1972-11-21
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Expires: 1991-01-12
Abstract
Abstract A reactor for purifying exhaust gas in an exhaust gas system of an internal combustion engine has an inner shell forming a reaction chamber and an outer shell surrounding the inner shell via an adiabatic space. Pipes define an inlet and an outlet and are perpendicular to each other. The inner shell is so supported on the outer shell that the inner shell may slide in an axial direction of one pipe while the other pipe is so constructed that the inner shell may move in an axial direction and in a direction normal to the axis of the other pipe. A member fixes the inner shell to the outer shell at any point for eliminating the vibration and noise of the inner shell.
Inventors
- 👤 Tomoo Tadokoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:37
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
234 words
A reactor for an internal combustion engine including a block comprising: a. an inner shell forming a reaction chamber, b. an outer shell surrounding said inner shell and separated therefrom to define a space therebetween, c. first and second pipe means extending through said outer shell and connected to said inner shell, d. said first and second pipe means arranged at substantially right angles to each other, e. one of said first and second pipe means defining an inlet passage for introducing the exhaust gas into said reaction chamber and the outer of said first and second pipe means defining an outlet passage for exhausting the exhaust gas from said reaction chamber, f. said first pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said first pipe means due to the heat expansion of said inner shell, g. said second pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said second pipe means and in the direction normal to the axis of said second pipe means due to the heat expansion of said inner shell, and h. means for fixing said inner shell to said outer shell at a localized area to reduce noise and vibration of said reactor during engine operation.
Claim 2
Dependent Claim
234 words
A reactor for an internal combustion engine including a block comprising: a. an inner shell forming a reaction chamber, b. an outer shell surrounding said inner shell and separated therefrom to define a space therebetween, c. first and second pipe means extending through said outer shell and connected to said inner shell, d. said first and second pipe means arranged at substantially right angles to each other, e. one of said first and second pipe means defining an inlet passage for introducing the exhaust gas into said reaction chamber and the outer of said first and second pipe means defining an outlet passage for exhausting the exhaust gas from said reaction chamber, f. said first pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said first pipe means due to the heat expansion of said inner shell, g. said second pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said second pipe means and in the direction normal to the axis of said second pipe means due to the heat expansion of said inner shell, and h. means for fixing said inner shell to said outer shell at a localized area to reduce noise and vibration of said reactor during engine operation.
Claim 3
Dependent Claim
234 words
A reactor for an internal combustion engine including a block comprising: a. an inner shell forming a reaction chamber, b. an outer shell surrounding said inner shell and separated therefrom to define a space therebetween, c. first and second pipe means extending through said outer shell and connected to said inner shell, d. said first and second pipe means arranged at substantially right angles to each other, e. one of said first and second pipe means defining an inlet passage for introducing the exhaust gas into said reaction chamber and the outer of said first and second pipe means defining an outlet passage for exhausting the exhaust gas from said reaction chamber, f. said first pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said first pipe means due to the heat expansion of said inner shell, g. said second pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said second pipe means and in the direction normal to the axis of said second pipe means due to the heat expansion of said inner shell, and h. means for fixing said inner shell to said outer shell at a localized area to reduce noise and vibration of said reactor during engine operation.
Claim 4
Dependent Claim
234 words
A reactor for an internal combustion engine including a block comprising: a. an inner shell forming a reaction chamber, b. an outer shell surrounding said inner shell and separated therefrom to define a space therebetween, c. first and second pipe means extending through said outer shell and connected to said inner shell, d. said first and second pipe means arranged at substantially right angles to each other, e. one of said first and second pipe means defining an inlet passage for introducing the exhaust gas into said reaction chamber and the outer of said first and second pipe means defining an outlet passage for exhausting the exhaust gas from said reaction chamber, f. said first pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said first pipe means due to the heat expansion of said inner shell, g. said second pipe means supporting said inner shell relative to said outer shell so as to permit said inner shell to move in the axial direction of said second pipe means and in the direction normal to the axis of said second pipe means due to the heat expansion of said inner shell, and h. means for fixing said inner shell to said outer shell at a localized area to reduce noise and vibration of said reactor during engine operation.
Claim 5
Dependent Claim
56 words
The reactor as claimed in claim 1, wherein said second pipe means includes two pipes each defining the inlet passage for introducing the exhaust gas into said reaction chamber, said first pipe means defines the outlet passage for exhausting the exhaust gas from said reaction chamber, and Said fixing means is arranged between said two pipes.
Claim 6
Dependent Claim
103 words
The reactor as claimed in claim 1, wherein: a sealing plate member has an opening corresponding to the outer periphery of said second pipe means and receives said second pipe means, said sealing plate member is positioned between said outer shell and said block of the engine for sealing and slidable movement in the direction normal to the axis of said second pipe means and at least one connection means between said second pipe means and said inner shell and between said second pipe means and said sealing plate member are sealable and slidable in the axial direction of said second pipe means.
Claim 7
Dependent Claim
99 words
The reactor as claimed in claim 1, wherein said first pipe means comprises a tube fixed to one end of said inner shell, an exhaust gas tube is fixed to a corresponding end of said outer shell and receives said tube to permit said tube to slide in the axial direction of said tube, and said reactor further comprises a pin fixed to the other end of said inner shell and a fulcrum shaft fixed to the other end of said outer shell receiving said pin to permit said pin to slide in the axial direction of said tube.
Claim 8
Dependent Claim
26 words
The reactor as claimed in claim 1, wherein said inner and outer shells are formed in section whose edges are welded together to form sealed units.
Claim 9
Dependent Claim
98 words
The reactor as claimed in claim 2, wherein said first pipe means comprises a tube fixed to one end of said inner shell and an exhaust gas tube fixed to a corresponding end of said outer shell and receiving said tube to permit said tube to slide in the axial direction of said tube, said reactor further comprises a pin fixed to the other end of said inner shell and a fulcrum shaft fixed to the other end of said outer shell receiving said pin to permit said pin to slide in the axial direction of said tube.
Claim 10
Dependent Claim
89 words
The reactor as claimed in claim 9, wherein: sealing plate members each have an opening corresponding to the outer periphery of each pipe and receive each pipe, means sealably and slidably position each sealing plate member in the direction normal to the axis of said pipes between said outer shell and said block of the engine and at least one connection means between each pipe and said inner shell and between each pipe and each sealing plate member are sealable and slidable in the axial direction of said pipe.
Claim 11
Dependent Claim
26 words
The reactor as claimed in claim 2, wherein said inner and outer shells are formed in section whose edges are welded together to form sealed units.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |