Coates CSRV Engine on Sustainable Planet

[mtx001]

Too bad this idiot company went after making effing choppers instead of making aftermarket heads which the aftermarket would gobble up

[zeekdavis11]

i wanna hear this thing

[ross425100]

yet the 2 strokes is still undeveloped and slowly being phased out....

[abeepak1]

We are not moving towards the wankel rotary engine because....

Small package. Big power, Horrendously big consumption...

[jpyz450f]

why dont we just move towards the wankel rotary.. small package big power.

[SEECOR]

After all the years still yet to see a commercial engine running!

Fraud and scam allegations all over the net!

Looks loke smoke and Mirrors to me!

[sardine178]

I just cant get over these Irish accents, they sound like gap toothed Gypsies.

[sickasso72]

Great Concept. But i"ve been watching this company since 2002 and they still dont have a consumer ready product yet. I have a feeling they a are being slowed down by all the companies that make valvetrain parts

[breethwithme]

global warming what a crock of shit lol god im so sick of hearing about it. they want us to go back into the ice age. without green house gas the planet would cool so much we would be back in the ice age. the trees need this to convert to oxygen. it has been proven that the gases are better than not having them. i will stick with what i got and you tree hugging hippies can go hug a tree.

[xSkateNinja]

i read an article in a muscle car magazine over 10 yrs ago about these heads. just by removing the camshaft and heads from a ford 5.0 and replacing them with the coates heads it made over 1,000 hp. by far the best modification you can do for any engine.

[Redjester22]

how much does that monster cost, might try one in my porsche 944 if they make the head custom for your block

[mattygambles]

its the best engine in the world

[Toolofdeath]

My only question is how do they achieve a seal, or at least a durable seal with the rotating ball. It seems like it would leak no matter what, even if it is small amounts.

And without oil in the head how do they control cooling? It may not be a big problem on the intake side(being exposed to constantly flowing cool, outside air), but exhaust gasses are hot and the valves are still exposed to heat during the combustion cycle.

[ScottLuby]

Sooo, solenoid operated valves would offer infinitely variable valve timing in an oil-free head, but you need juice to run the solenoids. No camshafts (or rotary valves) to turn=less parasitic losses. However the CSRV does have the advantage of cooler (ball) valves over traditional poppet valves, solenoid or camshaft driven. Higher CR or infinitely variable valve timing & (therefore) CR? I suppose it's all just rearranging the deck chairs on the Titanic anyway!

[sickasso72]

@ScottLuby LOL! good point. Solenoids would be a way to go!

[565Customz]

...i like the idea george...but it could be better. call me!!! haha

[sranjesuper]

i looked at the flash diagram of how the design works and what i do not get is. When the traditional intake valve is open, the airflow is unrestricted until it closes meaning it will suck out air from the outside until its open > the coates head has a ball which takes air and when it rotates, it gives that air to the chamber, but NO MORE air can get through into the chamber, only the air that is inside the ball. That is what i gather from watching the flash animation. ANyone?

[m4xwellmurd3r]

@sranjesuper not quite. Imagine that it's a ball with a hole straight through. One one side of the whole, is the intake ports, on the other side, the combustion chamber. As the ball rotates, it opens up a path between the two, then closes.

[sranjesuper]

yes but while the ball is on the intake side, it is not suking the air in, like a valve does , since it is only open to one side but a valve is open to both the intake and the combustion chamber at the same time.. this ball is only open to the intake seperately until it reaches a certain point where the combustion side opens up but by that time the intake is almost closed and, there is little air going in... or i am imagining it wrong...

[m4xwellmurd3r]

@sranjesuper the ball is designed to open up to both sides at the same time.

[Toolofdeath]

@sranjesuper If you look at the real video each ball has a port on the side that allows air to continue to flow.

[dpsavings]

everything they said is a stretch on the truth that engine is still an internal combustion engine they make it sound like its a hovering car compared to a standard four stroke and global warming is fake how is CO2 the main final product (after cat.s) of cars causing global warming? we exhale they same thing and every plant on the earths surface converts it back to oxygen....

[tittensmitten]

For all of you negative commentators let me just ask one thing, what are you doing to solve the energy crisis, or to stop pollution and global warming by creating a new and better engine? Exactly, Nothing! If you don't like it then stop complaining and get off your butt and do something about it!

[smvuy]

makes me want to make my own set of heads for sport applications

[onedieingsoul]

ok..he says it will run on all kinds of shit right? but then he says it uses higher compression ratio for a more complete combustion. well lets see here. higher then most gas it would be then. so probably at least 100 octane to run this thing. well luts see.. i don't think were gonna change all of our gas stations to propain. it might work but its just not feasable. it sounds to me like its just a million dollar failer

[RyTrapp0]

no, your just assuming too much. the poppet valve of a conventional engine is a hot spot - it collects heat and holds it - so it maintains a higher cylinder temperature. the rotary valve is always rotating, thus allowing it to cool some and, in turn, removing heat from the cylinder. less heat in the cylinder decreases the chances of detonation(think water/meth injection, or intercoolers between superchargers/turbochargers and the intake. its all about removing heat).

[RyTrapp0]

for this reason, the coats engine can run much higher compression ratios on the same octane as a conventional poppet valve ICE engine, making it much more efficient(more power out of the same amount of fuel, increasing power while keeping the same MPGs, or increasing MPGs while kepign the same power).

[Magnuspire]

@RyTrapp0 The valves aren't the only weak point in the motor. If you increase the compression ratio too much then you start to experience blown head gaskets, broken crank shafts, etc. There's quite a bit more work that needs to be done to the motor before these valves will be completely successful.

[BriscoCountyJr23]

@Magnuspire A diesel engine runs much higher compression ratios than a Coates SRV gasoline engine ever would and never suffers those problems.

[Magnuspire]

@BriscoCountyJr23 That's because a diesel engine's block is made out of iron and doesn't have aluminum heads.

[tittensmitten]

Have you ever heard of hooked on phonics? You really should look into getting you the hooked on phonics course, it would do Wonders for you vocabulary! There are stations which service alternate fuels! If you are going to take a long trip then do some research along the route you plan on taking and find a place which has the alternate fuel you are using, or you could bring some with you!

[v0rt3x86]

website has the same garbage on it since 4 years ago when I first heard about the company.... And every time I ask them why they're not making aftermarket heads for Hondas and such, I just get a generic response.

[BulldogPO]

Are reliability problems solved?

[bogux]

Less moving parts translates to less work translating to less maintenance. It's not the electric car or nuclear fusion, but it's a stepping stone. How do people not know about this?

[Einstiensblackid]

Rotary valves date back to 1914, but so far no one has solved the lubrication/emissions issues.

Coates claims ceramic bushings between the rotating valve and the combustion chamber eliminate both problems but besides these vid's, there's no proof that it works.

Coates was questionable enough to be accused of fraud in '94 and hasn't made any design changes since, so the odds are pretty good of this being just another failed rotary valve. Their stock is down 90% from it's IPO... Bad bad sign.

[Einstiensblackid]

How old is this video? All of the footage looks like early 90's B roll.