Four-stroke engine

Details Four-stroke engine Four-stroke engine

2008-07-15

2008-07-15

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Four-cycle

Crankcase compression of air or combustible mixture to be...

C123S090230

Reexamination Certificate

active

10547580

ABSTRACT:
A four-stroke reciprocating piston internal combustion engine with an intake valve an exhaust valve and a valve drive assembly (18) driven by the crankshaft (4) for actuating the intake valve (8) and the exhaust valve (10) A mixture-preparation device (15) supplies an air/fuel-lubricant mixture to the crankcase, which together with the piston functions as a pump for the mixture charge. A valve drive assembly housing (19, 20, 21, 22) comprising one or more sections (19, 20, 21, 22) and the intake channel (16) is supplied with a connecting duct (17) communicating with the crankcase volume (12) either by being connected to the crankcase or the cylinder, or by being connected to the valve drive assembly housing (19, 20, 21, 22), which communicates with the crankcase volume (12), and the communication from the intake channel (16) to the crankcase volume is arranged through at least one valve.

REFERENCES:
patent: 4708107 (1987-11-01), Stinebaugh
patent: 5072699 (1991-12-01), Pien
patent: 5347967 (1994-09-01), Todero et al.
patent: 5579735 (1996-12-01), Todero et al.
patent: 6145484 (2000-11-01), Funakoshi et al.
patent: 6152098 (2000-11-01), Becker et al.
patent: 6167874 (2001-01-01), Becker et al.
patent: 6199532 (2001-03-01), Häberlein et al.
patent: 6216660 (2001-04-01), Ryu et al.
patent: 6401701 (2002-06-01), Liu
patent: 6484701 (2002-11-01), Liu
patent: 7066140 (2006-06-01), Emanuelsson et al.
patent: 7096844 (2006-08-01), Kawamoto et al.
patent: 7096850 (2006-08-01), Yashirodai et al.
patent: 7270110 (2007-09-01), Keoppel
patent: 7325526 (2008-02-01), Kawamoto
patent: 30 22 901 (1981-12-01), None
patent: 34 38 031 (1986-04-01), None
patent: 1 134 365 (2001-09-01), None
patent: 1 136 665 (2001-09-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3936455