Outboard motor including folded tuned exhaust gas passage

Details Outboard motor including folded tuned exhaust gas passage Outboard motor including folded tuned exhaust gas passage

1980-03-17

1982-06-29

Basinger, Sherman D.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

60312, 123 65E, B63H 2126

Patent

active

043370543

ABSTRACT:
The invention includes an outboard motor comprising a power head having an exhaust gas port, a drive shaft housing extending downwardly from the power head and including an exhaust gas discharge outlet adjacent its lower end, and a continuous folded passage housed in the drive shaft housing. The folded passage includes a first passage portion having an upper end communicating with the exhaust gas port a second portion extending upwardly from the lower end of the first portion and having an upper end, and a third portion communicating with the upper end of the second portion. The folded passage functions to return to the exhaust port as positive pressure pulses the pressure pulses emitted by the exhaust ports, the folded passage causing return of the pressure pulses in timed relation with respect to closing of the exhaust port to thereby facilitate precompression of the fuel mixture entering the cylinder.

REFERENCES:
patent: 1804321 (1931-05-01), Crowe
patent: 2102559 (1937-12-01), Kadenacy
patent: 2542756 (1951-02-01), Draminsky
patent: 3385052 (1968-05-01), Holtermann et al.
patent: 3462947 (1969-08-01), Nowak
patent: 3520270 (1970-07-01), Miller
patent: 3665712 (1972-05-01), Tenney
patent: 3695238 (1972-10-01), Boerma
patent: 3703937 (1972-11-01), Tenney
patent: 3842599 (1974-10-01), Ehlen
patent: 3967446 (1976-07-01), Harralson et al.

Affiliated with

Also associated with

Rating

Outboard motor including folded tuned exhaust gas passage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Outboard motor including folded tuned exhaust gas passage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outboard motor including folded tuned exhaust gas passage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2163415