Control device for exhaust timing of a two cycle engine using intake system pressure

A two stroke engine (10) has an exhaust port (16) extending from a side wall of a cylinder (12). A plate valve (26) is movable to an extended position where is the plate valve blocks the upper edge (54) of the exhaust port 16 to effectively retard the opening of the exhaust valve and retractable to...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRENCE, THOMAS G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A two stroke engine (10) has an exhaust port (16) extending from a side wall of a cylinder (12). A plate valve (26) is movable to an extended position where is the plate valve blocks the upper edge (54) of the exhaust port 16 to effectively retard the opening of the exhaust valve and retractable to a second position which provides the entire axial extent of the exhaust port (16) to be openable with respect to the cylinder. The position of the plate valve (26) is controlled by a diaphragm bladder (46) which is responsive to pressure in the intake system (19) that is in communication with the bladder (46) via an inlet passage (48).