US3918258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas reactor for a combustion engine
Assignee: Volkswagen AG
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Filing: 1974-06-13
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Granted: 1975-11-11
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Expires: 1994-06-13
Abstract
Abstract A combustion engine of the rotary piston type in combination with an exhaust gas reactor, the combustion engine having an exhaust gas output channel with a secondary air input thereto for mixing the exhaust gas with secondary air for improved burning thereof in the exhaust gas reactor, a side plate on the combustion engine mounted at the exhaust gas emission side thereof, the exhaust gas reactor being mounted on the side plate forms a unit therewith and communicates with the exhaust opening of the combustion engine.
Inventors
- 👤 Erich Gaschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; Y; Y10; Y10S; Y10S60/00; Y10S60/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A combustion engine of the rotary piston type in combination with an exhaust gas reactor, having a longitudinal axis, the combustion engine comprising an exhaust gas outlet channel having a secondary air inlet thereto for mixing the exhaust gas with secondary air for improved burning thereof in the exhaust gas reactor, a side plate means on said combustion engine mounted at the side of said exhaust gas outlet channel, said exhaust gas reactor comprising a casing having an annular shape formed about said axis and defining an open end surface substantially perpendicular to said axis, said exhaust gas reactor being mounted directly on said side plate means, said open end surface of the exhaust gas reactor casing lying against the side plate means and communicating with the exhaust outlet channel of said combustion engine.
Claim 2
Dependent Claim
134 words
A combustion engine of the rotary piston type in combination with an exhaust gas reactor, having a longitudinal axis, the combustion engine comprising an exhaust gas outlet channel having a secondary air inlet thereto for mixing the exhaust gas with secondary air for improved burning thereof in the exhaust gas reactor, a side plate means on said combustion engine mounted at the side of said exhaust gas outlet channel, said exhaust gas reactor comprising a casing having an annular shape formed about said axis and defining an open end surface substantially perpendicular to said axis, said exhaust gas reactor being mounted directly on said side plate means, said open end surface of the exhaust gas reactor casing lying against the side plate means and communicating with the exhaust outlet channel of said combustion engine.
Claim 3
Dependent Claim
77 words
The combination as claimed in claim 1, wherein said annular exhaust gas reactor casing comprises a pair of annular chambers, one of said annular chambers communicating with said exhaust gas outlet of said combustion engine to said reactor, the other of said annular chambers comprises at least one chamber exhaust gas outlet opening, means for communicating both of said annular chambers at their end regions lying opposite to said chamber exhaust gas outlet opening of said chamber.
Claim 4
Dependent Claim
53 words
The combination as claimed in claim 2, wherein in said one annular chamber turbulence plate means are provided directed radially with respect to said one annular chamber, said turbulence plate means having apertures provided therein for improving the mixing of said exhaust gas and said secondary air by creating turbulences of said gas.
Claim 5
Dependent Claim
47 words
The combination as Claimed in claim 2, wherein in said other annular chamber turbulence plate means are provided directed radially with respect to said other annular chamber, said turbulence plate means having apertures provided therein for improving the mixing of said exhaust gas and said secondary air.
Claim 6
Dependent Claim
20 words
The combination as claimed in claim 2, wherein there is a plurality of exhaust gas outlets in said combustion engine.
Claim 7
Dependent Claim
20 words
The combination as claimed in claim 5, wherein a turbulence plate means is provided between adjacent exhaust gas inlet outlets.
Claim 8
Dependent Claim
25 words
The combination as claimed in claim 1, wherein said exhaust gas reactor comprises outer wall portions, said outer wall portions having a thermal insulation thereon.
Claim 9
Dependent Claim
29 words
The combination as claimed in claim 2, wherein said pair of annular chambers are concentric with each other, the inner one of said chambers communicating with said inlet openings.
Claim 10
Dependent Claim
38 words
The combination as claimed in claim 8, wherein said communicating means of said pair of concentric chambers is a region for turning about the gas flowing from said inner chamber to the outer one of said concentric chambers.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |