Variable speed is good in pumping & blowers for better efficiency. Mike http://www.oit.doe.gov/bestpractices/pdfs/variable_speed_pumping.pdf ...
Miquel Llauradó
m.llaurado@...
Jun 1, 2005 4:07 pm
2233
It's generally conceived that roller chain typically have an efficiency of around 98%. Out of all the different types of losses, does anyone know which one is...
It depends on the application. If the chain has to move sideways much, than that becomes a relatively big loss. If not, than the diameter of the sprockets and...
So is it possible to replace the bushing joints with "ball bearings", which rolls rather than slide, to further reduce friction? since that seems to be the...
I am building a high speed winch using a cvt to drive the drum. I probably will be using a Hoffco Comet 90 series I believe it is a model 94c. How do you...
Bonjour P.O. I have re-read all your messages. Good technical comments from "La Belle Province" ( Québec ). I live in Barcelona ( Catalonia / Spain ). Not...
Miquel Llauradó
m.llaurado@...
Jun 1, 2005 10:58 pm
2238
Hy Human Planet, Your links always excellent. Mike 1.CVT epicyclic seems to be US patent 6371881 ( ratcheting ) 2.I have looked at the Minivan CVT : XTronic....
Miquel Llauradó
m.llaurado@...
Jun 1, 2005 10:58 pm
2239
Hi, I am new in this field, Just couples of questions bothering me, 1)With the latest Honda city 1.5 Vtec auto with equiped of cvt, initially with the speed 80...
I have seen some chains that use roller bearings instead of bushings. Way more expensive, but doesn't save as much as you might think. If a two part bearing...
Is driveline efficiency directly related to fuel consumption? The answer seem to be an obvious "yes". But I think engine efficiency also affect the answer. For...
The largest factor is the engine. The engine should be run as slow as possible under full torque load. The losses in an internal combustion engine are ...
Bonjour, In my opinion, your question address more the engine efficiency upon rpm than drive line efficiency. Each engine have it's own torque/hp curvature...
Rebonjour, Here is an image of simulated engine (6 inline twin turbo). The interesting point, here, is the list of measurements. If you look to any "eff %"...
Nephin Enterprises, creators of the fully geared/meshed Continuously Variable Transmission http://www.nephinenterprises.com/ AGCO's TechStar CVT traces its...
human@...
Jun 4, 2005 5:50 am
2246
Re: Nephin Enterprises fully geared/meshed CVT. It looks like a really good engineering achievement. I believe it will work. My question concerns the...
larry@...
Jun 4, 2005 1:32 pm
2247
Can you tell me what I have missed? I have looked at the animation over and over and the number of teeth on each cog does not appear to change. As best as I...
To All, I took a second look at the fully geared/meshed CVT. I retract my comment that it can work. In order for it to work, the smaller end of each gear ...
larry@...
Jun 5, 2005 12:17 pm
2249
Dear friends, I have studied the CVT application in eolic systems. I have demonstrated that the efficiency increases remarkablly with the cvt. The papers are: ...
mantriota@...
Jun 6, 2005 12:33 pm
2250
How and why can a CVT be beneficial to any application that is driven by an electric motor. I thought electric motor doesn't need CVTs....
This is not an electric motor, its a generator - which has an optimum generating speed for a given power curve - which in turn is optimally driven by the wind...
It seems all trucks (esp big ones) are rear wheel drived. What are the advantages of the rear wheel drives. The rear wheel drive requires a drive shaft which...
Most big over the road trucks (all?) have rear wheel drive due to the amount of torque needed at the wheels, if it was front wheel drive, the wheels would...
Ken, I believe you are right about why front wheel drive is not practical for big semi type trucks. But for automobiles it is different. Most of the weight...
larry@...
Jun 7, 2005 7:45 pm
2256
Ken, I believe you are right about why front wheel drive is not practical for big semi type trucks. But for automobiles it is different. Most of the weight...
Look at Siegling High-efficiency flat belts. They claim 98.6 efficiency ( at full power ) : www.siegling.com Mike...
Miquel Llauradó
m.llaurado@...
Jun 7, 2005 8:33 pm
2258
I think with proper dia pulleys and width of belt, a flat belt can be efficient, but has trouble transmitting a lot of torque with a small width belt. -Ken...
In a message dated 06/07/2005 2:26:24 PM US Eastern Standard Time, ... Actually, the real reason for front wheel drive is to reduce the frontal area and drag...
RATIODISC@...
Jun 8, 2005 12:49 am
2260
Actually, the real reason for front wheel drive is to reduce the frontal area and drag of the vehicle.--James Oh yes, forgot about that, sure that is...
"the real reason for front wheel drive is to reduce the frontal area and drag of the vehicle" ? Without reshaping the vehicle exterior, how do you expect to...
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