Complex question:complex answer. The hotter the engine runs, the higher the efficiency (pretty much all types of combustion engines) Efficiency leads to horsepower hours/ fuel. So for power per gallon, it is temperature. The hotter the combustion chamber, the less fuel is quenched at the colder walls and piston head. But if an assumption is made that the fuel detonates at a certain temperature, the surface temperature of the chamber is limited. Ceramic pistons and cylinders have been played with to stretch the envelope in this regard. The heat of combustion produces pressure that stays high if the engine surfaces do not cool it as it pushes the piston down. Or turbine around and around in a turbo (jet or gas turbine aircraft are in this category). Modern automobiles operate in the boiling range of pure water to raise fuel efficiency and emission reduction. Fuel air intake that is cool results in a denser charge, (more of it in the cylinder) Modern fuel injection atomizes the fuel far better than leaking it into a hot manifold (as with a carb) so cold air works to make a better charge. Intercooling supercharged air does this as well. The added density is worth the loss of Delta T in the chamber. Rumley, and other Distillate/Kero engines resorted to technical means to stay hot. Oil cooling, and shutters. Serious topic. Jim
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
