Patent EP0145479A2 successfully refreshed from Google Patents.
EP0145479A2
Expired / Lapsed
EP
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Exhaust control system for 2-cycle engines
Assignee: Kawasaki Heavy Industries Ltd
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Filing: 1984-12-11
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Granted: —
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Expires: 2004-12-11
Abstract
Abstract An exhaust control system for 2-cycle engines has a main exhaust passage, auxiliary exhaust passages arranged in parallel with the main exhaust passage, and an expansion chamber communicatable with the main exhaust passage. During low-speed operation of the engine, the auxiliary exhaust passages are shut-off while the expansion chamber is connected to the mainexhaust passage, whereas, during high-speed operation of the engine, the auxiliary exhaust passages are opened and the expansion chamber is closed.
Inventors
- 👤 Eizaburo Uchinishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
F; F02; F02D; F02D13/00; F02D13/02; F02D13/028; F02D13/0284; F02B; F02B27/00; F02B27/04; F02B27/06; F02B33/00; F02B33/02; F02B33/28; F02B33/30; F02F; F02F1/00; F02F1/18; F02F1/22; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
An exhaust control system for 2-cycle engine comprising: a main exhaust passage opening into the combustion chamber; at least one auxiliary exhaust passage opening into said combustion chamber on the side of the main exhaust passage and leading to an intermediate portion of said main exhaust passage; control valve provided in respective auxiliary exhaust passage and adapted to selectively shut-off said at least one auxiliary exhaust passage; an expansion chamber communicatable with said main exhaust passage through said control valves; and a valve operating means for operating said control valves such that, when said engine is operating at low speed, said control valves allows said expansion chamber to be communicated with said main exhaust passage while shutting off said at least one auxiliary exhaust passage and, as the engine speed is increased, said control valves gradually shut off said expansion chamber from said main exhaust passage while gradually opening said at least one auxiliary exhaust passage.
References Cited (Backward Citations)
No citation records indexed.
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