Previous in Forum: Hi Guys...   Next in Forum: Electric vehicle charging
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
9 comments
Rating: Comments: Nested
Ti QE
Power-User
Engineering Fields - Manufacturing Engineering - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Apr 2008
Location: USA
Posts: 113
Good Answers: 4

LiquidPiston Rotary Engine

04/07/2023 8:43 AM

LiquidPiston will deliver a 25-hp heavy fuel rotary engine to the US Army in 2024 for evaluation. What do you think of this technology?
Register to Reply
Pathfinder Tags: rotary engine
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
phoenix911
Guru
Hobbies - CNC - New Member Hobbies - DIY Welding - New Member Engineering Fields - Electromechanical Engineering - New Member

Join Date: Aug 2007
Posts: 23647
Good Answers: 420
#1

Re: LiquidPiston Rotary Engine

04/07/2023 11:44 AM

Any links?

__________________
 “ When people get what they want, they are often surprised when they get what they deserve " - James Wood
Register to Reply
Rixter
Guru

Join Date: Apr 2010
Location: About 4000 miles from the center of the earth (+/-100 mi)
Posts: 9910
Good Answers: 1141
#2

Re: LiquidPiston Rotary Engine

04/07/2023 11:45 AM

It looks promising, similar to Wankel only inside-out, solving some of Wankel's problems.

There is some good information here.

https://www.liquidpiston.com/faq

Also here.
Register to Reply
SolarEagle
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#3

Re: LiquidPiston Rotary Engine

04/07/2023 2:21 PM

Looks like a total scam....They don't even have a working prototype...we see these new type engine announcements every few years, none of them work well, if at all....A lot of big claims and not even a video of the thing in action, smoke and mirrors...always looking for investors...

__________________
 All living things seek to control their own destiny....this is the purpose of life
Register to Reply
Ti QE
Power-User
Engineering Fields - Manufacturing Engineering - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Apr 2008
Location: USA
Posts: 113
Good Answers: 4
#4
In reply to #3

Re: LiquidPiston Rotary Engine

04/07/2023 2:29 PM

Or government contracts…
Register to Reply
Lehman57
Guru
Engineering Fields - Nuclear Engineering - New Member

Join Date: Sep 2009
Location: Louisville, OH
Posts: 1925
Good Answers: 36
#5
In reply to #3

Re: LiquidPiston Rotary Engine

04/07/2023 11:38 PM

I asked for a description and operating principles. We'll see what arrives.

__________________
 Lehman57
Register to Reply
Lehman57
Guru
Engineering Fields - Nuclear Engineering - New Member

Join Date: Sep 2009
Location: Louisville, OH
Posts: 1925
Good Answers: 36
#9
In reply to #5

Re: LiquidPiston Rotary Engine

04/11/2023 10:39 AM

As of 4-11-2023 morning, nothing has arrived from them.

__________________
 Lehman57
Register to Reply
Deefburger
Guru

Join Date: Mar 2011
Location: Sebastopol, California
Posts: 1205
Good Answers: 54
#6

Re: LiquidPiston Rotary Engine

04/08/2023 11:51 AM

https://www.liquidpiston.com/how-it-works

__________________
 Most people are mostly good most of the time.
Register to Reply
Waylan
Active Contributor

Join Date: May 2020
Posts: 14
Good Answers: 1
#7

Re: LiquidPiston Rotary Engine

04/10/2023 11:38 PM

It looks like a significant improvement on the Wankel. That should be obvious if you analyzed it. It has all the advantages of the rotary style combustion/expansion engine with far fewer sealing and wear issues. It's not perfect but it is definitely an improvement.
Register to Reply
Stephen Archer
Power-User

Join Date: May 2017
Location: Houston the Emerald City that would be Oz, TX serving art collectors and patrons worldwide
Posts: 224
Good Answers: 8
#8

Re: LiquidPiston Rotary Engine

04/11/2023 10:23 AM

The Wanker engine, including the Mazda version, always ends up with the same problem. The compression "seals" between the rotors and crankcase fail early and often giving an unacceptable level of compression gas blow-by netting a loss of HP and a gain of exhaust pollution.

__________________
 To get anywhere fast the first thing you do is go off in the wrong direction.
Register to Reply
Register to Reply
Have a Different Question?
9 comments
Copy to Clipboard

Users who posted comments:

Deefburger (1); Lehman57 (2); phoenix911 (1); Rixter (1); SolarEagle (1); Stephen Archer (1); Ti QE (1); Waylan (1)

Previous in Forum: Hi Guys...   Next in Forum: Electric vehicle charging

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
General Discussion:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (88 right now)
Show Members
Advertisement