Landracing Forum

Misc Forums => NON LSR Posting => Topic started by: floydjer on November 08, 2018, 03:14:12 PM

Title: Interesting engine design
Post by: floydjer on November 08, 2018, 03:14:12 PM

Patent drawing for the Weatherholt stationary engine. The piston is fixed, The cylinder reciprocates...And note where the valves are located.

Title: Re: Interesting engine design
Post by: jdincau on November 08, 2018, 03:22:00 PM

"Explosion engine" we used to have one of those!

Title: Re: Interesting engine design
Post by: Stainless1 on November 08, 2018, 11:53:01 PM

Yea, we've had a couple like that with the valves in the piston....  :roll:
 :cheers:

Title: Re: Interesting engine design
Post by: floydjer on November 14, 2018, 12:15:31 PM

Easy way to avoid that Bob...Use pistons as valves.

Title: Re: Interesting engine design
Post by: Lemming Motors on November 15, 2018, 12:02:01 PM

Does that make it a 2x4 stroke?

Title: Re: Interesting engine design
Post by: 4-barrel Mike on November 20, 2018, 12:11:00 AM

Headless: https://www.caranddriver.com/features/feature/a25224238/achates-opposed-piston-engine/ (https://www.caranddriver.com/features/feature/a25224238/achates-opposed-piston-engine/)

 :cheers:

Mike

Title: Re: Interesting engine design
Post by: Seldom Seen Slim on November 20, 2018, 07:14:18 AM

WW II diesel submarine engines were opposed piston - less noise for the bad guys' sonar to hear.

Title: Re: Interesting engine design
Post by: fordboy628 on November 20, 2018, 07:38:22 AM

Under the heading of:

You can make ANYTHING work, given enough time & development money . . . . .

A/   Probably ok for some sort of "Johnny Popper" stationary power source.

2/   Overly small valves and "longish", tortuous ports prevent achievement of "high efficiency".

d/   Moving cylinder as higher mass than moving piston, and since F = m*a, severely limits rpm potential.

z/   High rpm use might dictate a "cylinder return spring" taken from a railroad boxcar suspension . . . .   :roll:


Lots of interesting ideas floating around from 1903.   Might there be a working example in a museum somewhere?

 :dhorse:  :cheers:  :dhorse:
Ilovetechnologyboy

Title: Re: Interesting engine design
Post by: floydjer on November 20, 2018, 09:11:17 AM

OK.....where is that gif. of the engine that has the pistons leaving the bores and swapping cylinders ?  That made my temples throb.