US3872667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal-exhaust gas reactor
Assignee: EIDP Inc
•
Filing: 1973-02-14
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Granted: 1975-03-25
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Expires: 1993-02-14
Abstract
Abstract Disclosed herein is a thermal reactor to promote the reaction of hot internal combustion engine exhaust gas with air which comprises an elongated reactor chamber having means for introducing air, means for introducing exhaust gas and means for exiting chamber reaction products.
Inventors
- 👤 Iver Theodore Rosenlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:09
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
In a thermal exhaust gas reactor comprising an elongated reactor chamber having walls, ends and a longitudinal axis, and an outer shell enclosing the reactor chamber and separated therefrom by an insulation space, the reactor chamber being enclosed except for exhaust gas inlets, and a reaction-product outlet, the improvement which comprises i. air inlets, at both chamber ends, separate from the exhaust gas inlets, and ii. at least one of said exhaust gas inlets extending into the reactor chamber as a pipe closed at the end which extends into the reactor chamber except for an axial slot, said pipe having guide vanes therein flush with the axial slot, at least one of the vanes being positioned to change the direction of the flow of exhaust gas from axial to cross-axial flow.
Claim 2
Dependent Claim
131 words
In a thermal exhaust gas reactor comprising an elongated reactor chamber having walls, ends and a longitudinal axis, and an outer shell enclosing the reactor chamber and separated therefrom by an insulation space, the reactor chamber being enclosed except for exhaust gas inlets, and a reaction-product outlet, the improvement which comprises i. air inlets, at both chamber ends, separate from the exhaust gas inlets, and ii. at least one of said exhaust gas inlets extending into the reactor chamber as a pipe closed at the end which extends into the reactor chamber except for an axial slot, said pipe having guide vanes therein flush with the axial slot, at least one of the vanes being positioned to change the direction of the flow of exhaust gas from axial to cross-axial flow.
Claim 3
Dependent Claim
41 words
A reactor according to claim 1 wherein each of said exhaust gas inlets has at least one opening into the chamber of total inches perimeter p and of total square inches a and wherein the ratio p/a is at least 3.
Claim 4
Dependent Claim
17 words
A reactor according to claim 2 wherein the p/a ratio is in the range 4 to 5.
Claim 5
Dependent Claim
25 words
A reactor according to claim 1 wherein the exhaust gas inlet openings into the chamber are canted at 0* to 60* to the chamber axis.
References Cited (Backward Citations)
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Cited
US3066755A
Cited
US3166895A
Cited
US3254963A
Cited
US3210161A
Cited
US3413803A
Cited
US3633368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |