Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

LiquidPiston Closes $1.25M Venture Seed Round; Funding to Develop HEHC-Cycle Engine
www.greencarcongress.com ^ | 07/27/2007 | Staff

Posted on 07/31/2007 5:57:28 AM PDT by Red Badger

The Liquid Piston engine. A) full housing. B) Transparent housing showing principle components.

LiquidPiston, developers of a new engine architecture they claim will achieve 50% fuel efficiency (compared to the ~30% of existing engines) and drastically reduce pollutant emissions (earlier post), closed a $1.25 million seed investment round with Adams Capital Management and Northwater Capital.

The architecture is based on a “High-Efficiency Hybrid Cycle” (HEHC) thermodynamic cycle, which borrows elements from Otto, Diesel, Atkinson and Rankin cycles. The HEHC cycle can be implemented in a variety of ways; LiquidPiston is developing an implementation that uses a separate rotary compressor, two isolated combustion chambers, and a separate rotary expander. Hehc The HEHC cycle. Click to enlarge.

In the HEHC cycle (diagram at right), air (with no fuel) is compressed to a high ratio (> 18) in a compressor cylinder of the engine. The air is directed into an isolated combustion chamber. Fuel is injected into the combustion chamber and auto ignites. Combustion occurs under truly isochoric conditions and is allowed to complete until all fuel is fully combusted. The combustion products expand into an expander cylinder, which has larger volume than the intake volume. A small amount of water (an optional component) may be used in the system. Water may facilitate the cooling, lubricating, and sealing of combustion chamber and pistons.

Earlier this year, the company announced a $70,000 Phase I grant from the Army Small Business Innovation Research (SBIR) program. The father-son team led by immigrant physicist Nikolay and his son Alexander Shkolnik, a graduate student in MIT’s department of Electrical Engineering & Computer Science, will use this latest $1.25 million seed round of venture capital to build and test a working prototype.

Aside from significant improvements in fuel efficiency, LiquidPiston’s approach to ICE design has the potential to result in a substantially higher power-to-weight ratio, fewer moving parts leading to higher reliability and lower maintenance costs, and significantly lower emissions. The company expects to demonstrate a working prototype in the next 18 to 24 months.

The potential of this technology is tremendous, and the interest we are seeing from both the public and private sectors is very encouraging. With this latest round of investment, LiquidPiston is on its way to achieving its goal of revolutionizing the $250 billion market for internal combustion engines. —Dr. Ed Crow, retired senior vice president of Pratt & Whitney and an advisor to LiquidPiston


TOPICS: Business/Economy; News/Current Events; Technical
KEYWORDS: always10yearsaway; automobile; energy; engine; fuel; liquidpiston; rotaryengine; wankel
Navigation: use the links below to view more comments.
first previous 1-2021-4041-43 last
To: Vroomfondel
Vroom,

What came out of Sarcich's efforts was his Air Assisted Direct Injector.

Used on Mercury Optimax Engines, Tohatshu's Outboards, Aprilia Scooters (and other scooters) and now Hirth UAV engines (see post above).

The engine is gone, but an offshoot technology and the Company lives on.

41 posted on 07/31/2007 4:00:05 PM PDT by taildragger
[ Post Reply | Private Reply | To 40 | View Replies]

To: Red Badger

You’re talking about the MYT engine, with a donut shaped cylinder, and pistons whirling round in it.

Whether it really works God knows. Whether Angel Labs LLC is even still in business, God also knows, as the Internet has no news about them for over a year.


42 posted on 07/31/2007 7:03:49 PM PDT by AnalogReigns
[ Post Reply | Private Reply | To 16 | View Replies]

To: Red Badger; AdmSmith; AnonymousConservative; Arthur Wildfire! March; Berosus; Bockscar; ...
Note: this topic is from 07/31/2007. Thanks Red Badger.
How It Works LiquidPiston X Engine

How It Works LiquidPiston X Engine

43 posted on 03/14/2019 11:01:10 AM PDT by SunkenCiv (this tagline space is now available)
[ Post Reply | Private Reply | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-43 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson