Two-cycle engine

Details Two-cycle engine Two-cycle engine

2007-03-02

2010-02-09

Cuff, Michael (Department: 3741)

Internal-combustion engines

Two-cycle

Rear compression

C123S0510BC

Reexamination Certificate

active

07658170

ABSTRACT:
A stratified scavenging two-cycle engine includes: an air passage for delivering pure air to a scavenging passage; an air valve for opening and closing the air passage; and an auxiliary air passage for delivering the pure air to the scavenging passage when the air valve is completely closed. An amount of air for air-fuel mixture sucked in a crank chamber is reduced to increase the concentration of the air-fuel mixture, and air that supplements the reduced amount of the air for air-fuel mixture is fed into the scavenging passage through the auxiliary air passage, which enables the engine to be smoothly accelerated even when being suddenly accelerated from an idling state with an appropriate concentration of the air-fuel mixture sucked in a cylinder chamber during idling.

REFERENCES:
patent: 1737496 (1929-11-01), Feroldi
patent: 3410539 (1968-11-01), Walker
patent: 4271096 (1981-06-01), Kobayashi
patent: 4356801 (1982-11-01), Graham
patent: 4768494 (1988-09-01), Hale
patent: 4909211 (1990-03-01), Cook et al.
patent: 5749335 (1998-05-01), Flanery, Jr. et al.
patent: 6454242 (2002-09-01), Garrick et al.
patent: 6561160 (2003-05-01), Suzuki et al.
patent: 2001/0013327 (2001-08-01), Ryu et al.
patent: 2001/0020454 (2001-09-01), Kobayashi
patent: 2004/0055546 (2004-03-01), Nonaka
patent: 2004/0251564 (2004-12-01), Mavinahally
patent: 2005/0139179 (2005-06-01), Mavinhally et al.
patent: 2006/0005795 (2006-01-01), Yuasa et al.
patent: 10-252565 (1998-09-01), None
patent: 2001-254623 (2001-09-01), None
International Search Report dated May 1, 2007, issued in PCT/JP2007/054056.
Notification Concerning Transmittal of International Preliminary Report on Patentability, Chapter I of the Patent Cooperation Treaty and PCT Written Opinion of the International Searching Authority for PCT/JP2007/054056, 4 sheets.

Affiliated with

Also associated with

Rating

Two-cycle engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-cycle engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-cycle engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4230545