Six Cycle Engine

Very cool actually -- the inventor, Bruce Crower, has been involved in racing and currently builds high-performance cams and other engine parts. From Damn Interesting:
The Six-Stroke Engine
Under the hood of almost all modern automobiles there sits a four-stroke internal combustion engine (ICE). Though the efficiency of the design has been improved upon significantly in the intervening years, the basic concept is the same today as that used by the first practical four-stroke engine built in the 1870s. During every cycle in a typical car engine, each piston moves up and down twice in the chamber, resulting in four total strokes� one of which is the power stroke that provides the torque to move the vehicle. But the automotive industry may soon be revolutionized by a new six-stroke design which adds a second power stroke, resulting in a much more efficient and less polluting alternative.
A bit more:
His addition to the ICE design is simple in principle, yet a stroke of genius. After the exhaust cycles out of the chamber, rather than squirting more fuel and air into the chamber, his design injects ordinary water. Inside the extremely hot chamber, the water immediately turns to steam -- expanding to 1600 times its volume -- which forces the piston down for a second power stroke. Another exhaust cycle pushes the steam out of the chamber, and then the six-stroke cycle begins again.

Besides providing power, this water injection cycle cools the engine from within, making an engine's heavy radiator, coolant, and fans obsolete. Despite its lack of a conventional liquid cooling system, his bench engine is only warm to the touch while it is running.
Clever idea -- the engine gets a bit more power from the waste heat (the article is stating 40% more power). There is a downside in that the vehicle will need to carry as much water as gasoline so the weight saved by not needing a radiator and cooling system is somewhat lost by the extra baggage but still, this is not a bad idea and would be fantastic for a fixed engine such as a generator...


So that I do not leave you all wondering where I was coming from in my earlier posting, I have loaded the 2004 computer file into a Web site. This approximately 70-page computer file was written at a time when, because of health issues, I was facing the thought of death. This file was then mass-distributed via disks and numerous emails. It may answer some of your questions. Why let Bruce Crower possibly have the information edge on you? To view the 2004 file, go to:

The information in the computer file I gave as a gift to humanity in 2004. I again renew that commitment. I also have a different Web site which goes much further into the extremely efficient multi-fuel system which I have been researching and experimenting toward since 1980. This environmental-friendly system has the potential for eliminating all dependence on foreign oil and drastically reducing the fuel costs of all who use it. To view this informative site, just send your request to Don�t be left in the dark!

The engine of Mr. Crower is very interesting. In 2004, I was sending out numerous computer disks which spoke of a system for recovering the heat wasted to the exhaust and cooling systems by using a steam cycle within the engine cylinder.

The technology does exist today for a many-fold increase in fuel economy. The X Prize Foundation believes this so strongly that they are looking at presenting a $25-million prize for the group which can produce a production vehicle capable of obtaining 250 mpg.

At this time, I am looking for people interested in working together to produce the Ultimate Engine. This engine may obsolete the Crower cycle engine. I do have a restricted Web site which discusses my project.

I have put more than 25 years of research toward building the final prototype. If you are interested in becoming involved, please contact me by email at:

...Mr.Crower is working on a design with a seperate, steam only exhaust valve that will direct the steam cycle exhaust to a condenser unit that will greatly reduce the amount of onboard water.

You shouldn't need to carry 20 gallons of water for that. You may for his current design - but there doesnt' seem to be anything preventing the 'steam' part of the cycle from becoming near-optimum needing only 3-4 times as much water as all the pistons could hold at 'full compression'.

That doesn't sound like much water at all. A '2 liter' engine is a measurement of the uncompressed volume... and 20-1 is in the range of compression ratios for a diesel -> 100mL of water per cycle.

August 2019

Sun Mon Tue Wed Thu Fri Sat
        1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31

Environment and Climate
Cliff Mass Weather Blog
Climate Audit
Climate Depot
Green Trust
Jennifer Marohasy
Planet Gore
Science and Public Policy Institute
Solar Cycle 24
Space Weather
Space Weather - Canada
the Air Vent
Tom Nelson
Watts Up With That?

Science and Medicine
Derek Lowe
Junk Science
Life in the Fast Lane
Luboš Motl
New Scientist
Next Big Future
Ptak Science Books
Science Blog

Geek Stuff
Ars Technica
Boing Boing
Don Lancaster's Guru's Lair
Evil Mad Scientist Laboratories
Hack a Day
Kevin Kelly - Cool Tools
Slashdot: News for nerds
The Register
The Daily WTF

The Argyle Sweater
Chip Bok
Broadside Cartoons
Day by Day
Medium Large
Michael Ramirez
Prickly City
User Friendly
What The Duck

Awkward Family Photos
Cake Wrecks
Not Always Right
Sober in a Nightclub
You Drive What?

Business and Economics
The Austrian Economists
Carpe Diem
Coyote Blog

Photography and Art
Digital Photography Review
James Gurney
Joe McNally's Blog
The Online Photographer

A Western Heart
American Digest
The AnarchAngel
Anti-Idiotarian Rottweiler
Babalu Blog
Belmont Club
Bayou Renaissance Man
Classical Values
Cold Fury
David Limbaugh
Defense Technology
Doug Ross @ Journal
Grouchy Old Cripple
Irons in the Fire
James Lileks
Lowering the Bar
Maggie's Farm
Marginal Revolution
Michael J. Totten
Mostly Cajun
Power Line
Questions and Observations
Rachel Lucas
Roger L. Simon
Sense of Events
Sound Politics
The Strata-Sphere
The Smallest Minority
The Volokh Conspiracy
Tim Blair
Weasel Zippers

Gone but not Forgotten...
A Coyote at the Dog Show
Bad Eagle
Steven DenBeste
democrats give conservatives indigestion
Cox and Forkum
The Diplomad
Priorities & Frivolities
Gut Rumbles
Mean Mr. Mustard 2.0
Neptunus Lex
Other Side of Kim
Ramblings' Journal
Sgt. Stryker
shining full plate and a good broadsword
A Physicist's Perspective
The Daily Demarche
Wayne's Online Newsletter

About this Entry

This page contains a single entry by DaveH published on March 20, 2006 9:25 AM.

Penultimate day in San Diego was the previous entry in this blog.

Eephing is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.

Monthly Archives


OpenID accepted here Learn more about OpenID
Powered by Movable Type 5.2.9