EP0141650A2
Expired / Lapsed
EP
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Exhaust port system
Assignee: Kawasaki Heavy Industries Ltd
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Filing: 1984-10-31
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Granted: —
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Expires: 2004-10-31
Abstract
Abstract An exhaust port system for a 2-cycle engine has a main port of a fixed opening area and a sub-port having an adjustable opening area. The sub-port is spaced from the main port in the direction perpendicular to the direction of movement of the piston in the cylinder.
Inventors
- 👤 Eizaburo Uchinishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 08:33
CPC Classifications
F; F02; F02D; F02D13/00; F02D13/02; F02D13/028; F02D13/0284; F02B; F02B33/00; F02B33/02; F02B33/28; F02B33/30; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
68 words
An exhaust port system for a 2-cycle engine comrpising: an exhaust main port formed in the wall of a cylinder such as to open to the combustion chamber in said cylinder; an exhaust sub-port formed in the wall of said cylinder at a lateral side of said main port; and a controlling means for varying the degree of opening of said sub-port in accordance with the engine speed.
Claim 2
Dependent Claim
68 words
An exhaust port system for a 2-cycle engine comrpising: an exhaust main port formed in the wall of a cylinder such as to open to the combustion chamber in said cylinder; an exhaust sub-port formed in the wall of said cylinder at a lateral side of said main port; and a controlling means for varying the degree of opening of said sub-port in accordance with the engine speed.
Claim 3
Dependent Claim
82 words
An exhaust port system for a 2-cycle engine according to claim 1, wherein said controlling means includes a valve provided on said sub-port, a lever mechanism connected to said rod and adapted to move the valve such that the valve changes the degree of opening of said sub-port, a rotary governor connectdd to said lever mechanism and adapted to actuate said lever mechanism, and a gear mechanism connected to the crankshaft of said engine and adapted to drive said rotary governor. I
References Cited (Backward Citations)
No citation records indexed.
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