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Topic: Radial engine

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In the News (Wed 21 Aug 19)

  Encyclopedia: Radial engine
A flat engine is an internal combustion engine in which the cylinders are arranged in two banks on either side of a single crankshaft so that the motion of all the pistons is in a single plane.
The W engine is an engine configuration in which the cylinder banks resemble the letter W in the same way a V engine resembles the letter V. There have been three entirely different implementations of this concept: one with three banks of cylinders, one with four and one with two...
The radial engine is a particular engine configuration, in which the cylinders are arranged pointing out from a central crankshaft like the spokes on a wheel.
www.nationmaster.com /encyclopedia/Radial-engine   (2798 words)

 Encyclopedia article: Radial engine   (Site not responding. Last check: 2007-11-05)
In addition the radial is far more resistant to damage; if the block cracks on an inline that entire cylinder bank (additional info and facts about cylinder bank) will lose power, but the same situation on a radial will often only make that individual cylinder stop working.
The large frontal area combined with the durability of radial engines proved advantageous to fighter aircraft at times though, particularly those in the attack role where the engine would act as an additional layer of armor for the pilot.
The radial tended to be more popular largely due to its simplicity, and most navy (An organization of military naval forces) air arms had dedicated themselves to the radial because of its improved reliability (very important when flying over water) and lighter weight (for carrier takeoffs).
www.absoluteastronomy.com /encyclopedia/r/ra/radial_engine.htm   (538 words)

 Radial engine - Wikipedia, the free encyclopedia
The radial engine is a configuration of internal combustion engine, in which the cylinders are arranged pointing out from a central crankshaft like the spokes on a wheel.
This configuration was formerly very commonly used in aircraft engines before being superseded by turboshaft and turbojet engines.
Most did not exceed two rows, but the largest radial engine ever built in quantity, the Pratt and Whitney Wasp Major, was a 28-cylinder 4-row radial engine used in many large aircraft designs in the post-World War II period.
www.wikipedia.org /wiki/Radial_engine   (718 words)

 [No title]   (Site not responding. Last check: 2007-11-05)
The radial engine of the present invention eliminates the need for both and allows for a piston to be supported by four cam wheels that distribute the power to two flywheels that connect all clockwise rotating cam gears.
The radial internal combustion engine of claim 1 wherein: at least two rotating cams are connected to each piston, and at least two rotating cams for each piston are connected to the piston by a pair of parallel, spaced apart arms.
The radial internal combustion engine of claim 1 wherein: the output shaft is rotatably disposed in a central bore in the engine block.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/06794.030123&ELEMENT_SET=DECL   (3476 words)

 [No title]   (Site not responding. Last check: 2007-11-05)
This dynamic interrelationship is caused by the rotation of the supply of anode particles relative to the cathode during engine operation and preferably in response to rotation of the engine motor.
The motor 15 is connected to the main drive shaft 19 of the engine 10 which, in turn, is adapted to be connected to the transmission of a vehicle (not shown) or to the drive train of any other mechanism (not shown) which to be electrochemically driven by the engine 10 of the present invention.
The upper section 40 of the engine block 12 is readily removable from the engine 10 for assembling the electrochemical reaction cells 14, filling the cage 28 of each reaction cell 14 with electrolyte 34, replacing or substituting one or more of the electrochemical reaction cells 14 and for maintenance purposes.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=00/21147.000413&ELEMENT_SET=DECL   (4813 words)

 Halfbakery: Radial/Rotary Engine With Rotary Valves
Radial engines with cylinders that rotate around a crank, also called rotary engines, carry out different cycles during different degrees of their rotation.
As the engine rotates around the crank, "gnome" style, this port would pass by the intake and exhaust manifolds that are cut into the stationary part of the engine.
some of the old radial engines had no poppet valves, but instead had cutouts in the head that were covered or uncovered as the cylinder was twisted around its axis by a linkage to a cam.
www.halfbakery.com /idea/Radial_2fRotary_20Engine_20With_20Rotary_20Valves   (1867 words)

 Dictionary of Automotive Terms Abbreviations   (Site not responding. Last check: 2007-11-05)
radiator drain plug, tools are not required to drain the coolant from a radiator with a drain cock.
A panel located behind the radiator grille surround which provides a mounting for the radiator and connects the mudguard skirts at their front edge.
A worn engine that has been given a new lease of life by reboring the cylinders, regrinding the crankshaft journals and generally replacing any worn or damaged parts.
www.100megsfree4.com /dictionary/car-dicr.htm   (8150 words)

 Radial engine - Patent 4727794
In accordance with the teachings of the disclosure, the radial engine includes a housing and a plurality of equally spaced openings disposed in a ring-like arrangement on the periphery of the housing.
In accordance with the present invention, a radial engine comprises: a housing and a plurality of equally spaced openings disposed in ring-like arrangement on the periphery of said housing.
A guide means extends radially inwardly in the housing in line with each said piston rod to permit radial reciprocating movement of the piston rods and shoes and transmits the lateral forces to the housing.
www.freepatentsonline.com /4727794.html   (2703 words)

 clumpinglitter: intelligent design
A radial engine produces a lot of power, but the maximum RPM is low enough so that no reduction gearing is needed between the engine and the propeller.
The cylinders of a radial engine are isolated from one another.
When an airplane with a radial engine was parked, oil drained out of the cylinders that pointed down toward the ground, making a mess.
www.livejournal.com /users/clumpinglitter/35690.html   (492 words)

 Howstuffworks "How Radial Engines Work"
The radial engine idea is very simple -- it takes the pistons and arranges them in a circle around the crankshaft, as shown here:
You can see in the illustration that this is a five-cylinder engine -- radial engines typically have anywhere from three to nine cylinders.
The radial engine has the same sort of pistons, valves and spark plugs that any four-stroke engine has.
travel.howstuffworks.com /radial-engine2.htm   (123 words)

 Curtiss YA-10 - US Air Force Museum Attack Aircraft Virtual Aircraft Gallery   (Site not responding. Last check: 2007-11-05)
The first YA-8 (S/N 32-344) was used to test the feasibility of producing a radial engine powered version of the Curtiss A-8.
The liquid-cooled Curtiss "Conqueror" engine was removed and replaced with a Pratt and Whitney air-cooled radial engine.
It was common in the 1920's and 1930's to test different engines on an airframe and assign a new designation to each model tested.
www.wpafb.af.mil /museum/research/attack/a2/a2-11.htm   (361 words)

 The BMW 801 Radial Engine
The Treatment of the BMW 801D-2 Radial Aero Engine Rescued From the Loiret River.
The BMW 801 twin row radial engine formed the basis of the Focke Wulf fw190 design.
The engine mount ring is a sealed unit of square cross-section and also acts as a hydraulic fluid reservoir.
www.tighar.org /Projects/Histpres/Corrosion_Report/bmw801.html   (315 words)

 Inside The Radial Engine   (Site not responding. Last check: 2007-11-05)
The master-and-articulating-rod assembly is used on X-type engines, radial-type engines, and on some V-type engines.
It should be understood that the type of connecting rod used in an engine depends largely on the cylinder arrangement.
However, certain types of aircraft engines have a system of connecting rods connected to the same crankshaft bearing, called an articulating connecting-rod assembly.
www.aviation-history.com /engines/radial.htm   (269 words)

 Halfbakery: Radial "Boxer" Engine
We've all seen those radial engines on old airplanes, the round ones with several cylinders aranged in a circle around a common crank.
This is not a true radial; it is more like a Ducati V-Twin with an extra cylinder, in that there are three cranks rather than one (radial engines and Harley V-Twins have a single crank).
A conventional radial uses a crown rod (or whatever you might call it) to which all the other rods are attached, and the crown drives the crank.
www.halfbakery.com /idea/Radial_20_22Boxer_22_20Engine   (1544 words)

 Welcome to Rad-Cam
Rad-Cam (radial cam) engine design achieves efficiencies by having a high power to weight ratio, being nearly 100% dynamically balanced, high torque at low RPM, multiple paired components working equal and opposite each other that produce less vibration with less stress and wear on each individual component.
This engine is designed to put out 60 hp @ 3000 rpm and should weigh in at 65 lbs ready to run.
The R8600 Engine Casing was on display at the Fun In The Sun Fly In.
www.rad-cam.com   (284 words)

 Precision Northwest Radial Engines
In addition to the overhaul of piston radial engines and accessories, Precision Engines is expanding support into parts manufacturing and QEC assembly.
The radial reciprocating engines manufactured by Pratt & Whitney and Curtis - Wright were, and remain the standard of propulsion technology, a technology that ultimately gave way to the economics of modern gas turbine engines.
By using the finest parts available (newly manufactured if need be), excellent machining capabilities, and the most modern, well equipped radial engine test facility in the industry, Precision Engines serves cargo fleets, fire fighters, militaries, nostalgia operators, collectors and museums throughout the world.
www.precisionengines.com   (243 words)

 Radial Rotary Engine by Kokua International   (Site not responding. Last check: 2007-11-05)
Experience has shown that the weakness in existing engines are the crankshaft and connecting rods.
The design of the engine consists of all circular components (most of the available as stock standard "off the shelf" parts), thereby cutting manufacturing costs.
This engine is a series of pistons arranged in a circle from 3 to 9 cylinders (which can be double banked to 18).
www.proserpine.com /Kokua/kokua1.htm   (144 words)

 Tests of nacelle-propeller combinations in various positions with reference to wings III : Clark y wing - various ...   (Site not responding. Last check: 2007-11-05)
This report is the third of a series giving the results obtained in the 20-foot wind tunnel on the interference drag, and propulsive efficiency of nacelle-propeller-wing combinations.
The first report gave the results of the tests of an NACA cowled air-cooled engine nacelle with tractor propeller located in 21 positions with reference to a thick wing.
The second report gave the results for several engine cowlings and nacelles with tractor propeller located in four positions with reference to same wing.
naca.larc.nasa.gov /reports/1934/naca-report-462   (185 words)

 The Jacobs Radial Engine   (Site not responding. Last check: 2007-11-05)
The Jacobs Engine Company began in Camden, New Jersey, in 1930 with a 55-hp F-head three and a 150-hp seven.
Its output rose to 170 hp in 1931, and, enlarged as the LA-2 model, to 195 hp in 1932.
The cure was to have the cap undergo a bakeout in a vacuum oven and them impregnate the crack with insulating varnish, after which it would run forever without giving further trouble.
www.gruner.com /flight/appendix/classic/jacobs.htm   (345 words)

 Sadler radial aircraft engine.
However, the engine was installed in an Avid Model C where it produced a cruise speed of 85 mph, a 1,250 fpm rate of climb at gross weight, and a service ceiling above 12,500 feet.
The engine, including electric starter and alternator, weighed 121.4 pounds and the all-up weight including engine mount, exhaust manifold and propeller was 162 lbs.
The company now has one engine running on a stand at the Arlington Airport north of Seattle that is available for demonstration the homebuilders with scaled-down replicas of the Golden Era of biplanes: Wacos, TravelAirs, Stearmans, Rearwins, and others originally produced with radial engines.
www.ultralightnews.com /engineinfo/sadler_radial.htm   (906 words)

 Wright Cyclone 1820 radial engine
The engine wasn't suited to the high-g stress of fighter combat, probably because of the way lubricating oil reached the cylinders in the early models.
The oil circulation with one or two of the pistons in the Finnish Brewster fighters was a problem which shortened the life of the engine and rised the temperature in the engine, which you also mentioned in your story.
Yup it was a pushrod engine with the cam mounted concentric to the crank.
www.warbirdforum.com /cyclone.htm   (1639 words)

 Tom Philo Photography - Grumman F8F Bearcat Radial Engine WWII Fighter
The Bearcat only got a new engine mid-summer and it was unknown if it would be at Reno race year 2002 until only a few weeks before.
It is actually much easier to shoot down an enemy aircraft from the 5 or 7 aspect than it is from the 6 o'clock position due to physics of firing and the effective size of a target.
The Bearcat was the last of the single engine radial fighters from the "Grumman Iron Works." The F4F 'Wildcat,' F6F 'Hellcat,' then the F8F 'Bearcat,' with the twin engined F7F 'Tigercat' filling out the series.
www.taphilo.com /photo/pictures/bearcat/index.shtml   (406 words)

 aircraft radial engine cutaway (aircraft radal engine cutaway) information.
was a 28-cylinder 4-row radial engine used in many large aircraft designs..
The R-4360 was a 28-cylinder air-cooled reciprocating radial engine developed..
Radial engines (Figure 5.1) feature a number of cylinders arranged around the..
www.wide-find.com /a/aircraft_radial_engine_cutaway.html   (195 words)

 sciforums.com - electromagnetic radial engine
If the plate was attracted to the pole again and then slid of the pole perpendicular to the direction of the lines of force, then the magnetic field would not be fully restored, and so if this were done continuously then the magnetic field would eventually be nil.
Rotary engines means rotary piston not cylinders in a circle.
Engine could be very light, could be make of plastic for there in no combustion to contain and direct.
www.sciforums.com /showthread.php?t=31180&page=2   (2835 words)

 Handmade Radial Steam Engine Engine
Such was the case with this unusual little handbuilt 6 cylinder radial engine.
The exhaust ports were drilled at the end of each of the legs of the "star" and they blew steam oil in a 360° arc...
The Radial Engine runs quite well on as little as 10 pounds of high volume air and almost appears to be "alive" when the 6 cylinders are seen oscillating together
www.cedesign.net /steam/radial.htm   (606 words)

 360 Horsepower Radial Engine Bearhawk?   (Site not responding. Last check: 2007-11-05)
The Bearhawk is intended for use with engines ranging from at least 150 horsepower, up to a maximum of 260.
The M-14 radial is a world all unto itself and it's a wonderful world.
There are rebuilt engines on the market for as low as $8000, but I have no experience with them so I can't comment.
www.rawlinsbrothers.org /bhfaq/m14p.html   (976 words)

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