Both of Watt's basic engine types were commercially very successful, and by 1800, the firm Boulton & Watt had constructed 496 engines, with 164 driving reciprocating pumps, 24 serving blast furnaces, and 308 powering mill machinery ; most of the engines generated from 5 to.

As automakers were switching en masse from carbureted to fuel injected engines during the early to mid-1980s, the detergent additives that existed in most available gasolines proved not to be enough to prevent injection clogging, leading to drivability problems, Mobil received accolades from General Motors and other automakers for increasing the detergency of its Super Unleaded gasoline in 1984 to prevent formation or deposit build-ups of the injectors but also remove existing deposits as well in normal driving.

In addition, engineers designing objects having engines must ensure that the mechanical resonant frequencies of the component parts do not match driving vibrational frequencies of the motors or other strongly oscillating parts.

Sir Hiram Maxim built a craft that weighed 3. 5 tons, with a 110-foot ( 34-meter ) wingspan that was powered by two 360-horsepower ( 270-kW ) steam engines driving two propellers.

Among the technical characteristics for the new Unimog are: the tire pressure adjustment system that can be operated while driving, anti-skid system, new engines from the passenger car range for the U 90 of the easy series rank as well as " Servolock ", a mechanism for the hydraulic connection of implements.

These design features made the 2CV engine highly reliable ; test engines were run at full speed for 1000 hours at a time, equivalent to driving at full throttle.

They started in the cycle business and went on to make V-twin engines for driving machinery.

If the rack is elevated above the running rails, there is no need to interrupt the running rails to allow passage of the driving pinions of the engines.

Very old racing engines will sometimes have two sets of plugs, one just for starting and another to be installed for driving once the engine is warmed up.

Shaped like a section of a large aerofoil ( this creates a low pressure area above the wing much like an aircraft ), the craft was propelled by four aero engines driving two submerged marine propellers, with a fifth engine that blew air under the front of the craft to increase the air pressure under it.

Power was provided by four Rolls-Royce Proteus marine turboshaft engines each driving its own lift fan and pylon-mounted steerable propulsion propeller.

Mays points out the ready availability of parts for AMC engines and his experiences in having service done on Ramblers without being charged for the work in exchange for the experience of driving a " sassy Rambler " ( a 1966 American convertible ) and having pictures taken with it.

* 1911: An aircraft powered by two engines driving a single propeller-the configuration cancelled the torque of the engines.

From the standpoint of driving experience, five-cylinder engines are noted for combining the best aspects of four-and six-cylinder engines.

The four 8, 375 brake horsepower ( 6. 2 MW ) engines driving their waterjets required an inordinate amount of diesel fuel.

The Merriam-Webster dictionary defines muscle cars as " any of a group of American-made 2-door sports coupes with powerful engines designed for high-performance driving.

This engine was the result of a deal between BMW and Brabham, which resulted in the team's chassis being powered by BMW engines from until, a period in which Nelson Piquet won the championship driving a Brabham BT52-BMW.

Mechanical energy from the engines may be used for e. g. driving water pumps for irrigation or for coupling with an alternator for electrical power generation.

Commencing work in 1889, he built a long craft that weighed 3. 5 tons, with a wingspan that was powered by two compound steam engines driving two propellers.

Two GAZ-202 automobile engines were used mounted in " parallel ", each engine driving one track.

The engines ( B14A and B16B ) were fitted with twin SU carburetors, driving through a three-speed manual gearbox.

* The Scaled Composites Model 367 BiPod is a developmental hybrid using joined fuselages, and twin combustion engines powering four 15 kW electric propellers.

Since Wankel engines operate at a relatively high rotational speed with relatively low torque, propeller aircraft must use a Propeller Speed Reduction Unit ( PSRU ) to keep their propellers within the proper speed range.

Jet aircraft are propelled by jet engines, which are used because the aerodynamic limitations of propellers do not apply to jet propulsion.

The most common propulsion units are propellers ( powered by reciprocating or turbine engines ) and jet engines ( which provide thrust directly from the engine and usually also from a large fan mounted within the engine ).

* PT-20: Elco ; 3 Packard 1, 200-hp engines ; equipped with special propellers ; special strengthening added to hull framing and deck.

To maintain speed the engines were upgraded to four Rolls-Royce turboprops fitted with four diameter steerable propellers.

There were no spare parts, engines, or propellers for the B-17s in the Philippines ; damaged B-17s had to be cannibalized to keep the bombers flying.

Towards the end of the war, the Dornier Do 335 Pfeil could have been an ideal twin-engined Zerstörer fighter design for the Luftwaffe due to its center-line-thrust format, which placed its fuselage-mounted twin engines ' propellers on opposing ends of the fuselage, and potentially allowed much better maneuverability, and did allow dramatically higher speeds ( just over 750 km / h or 465 mph ), than any other twin-piston-engined aircraft of its era, but like so many other advanced German aircraft designs that were actually produced by Germany late in the war, the Do 335 never had the chance to be produced in quantity.

The thrust to propel the aircraft forward comes from its propellers or jet engines.

Typical uses are for the hulls of ships and boats, offshore pipelines and production platforms, in salt-water-cooled marine engines, on small boat propellers and rudders, and for the internal surface of storage tanks.

( Articles on restoration of Ader's Aeroplane 3 and on the testing of engines and propellers.

The Manhattan was fitted with an ice-breaking bow, powerful engines, and hardened propellers before successfully traveling the Northwest Passage from the Atlantic Ocean to the Beaufort Sea.

It had a range of 10564 miles, and carried twin propellers on each of its four engines.

Submarines use batteries ( charged by diesel or gasoline engines at the surface ), nuclear power, fuel cells or Stirling engines to run electric motor-driven propellers.

For propeller driven aircraft it almost always requires a complete rebuild of engines because the propellers strike the ground and suffer a sudden stoppage if they are running during the impact.

The craft was powered by two engines: a ground engine of 10 hp ( 7. 5 kW ), intended to propel the front wheels to reach takeoff speed, and a 20 hp ( 15 kW ) acetylene engine powering two propellers, which were designed to counter-rotate for stability.

" In contrast, all ' technical ' machines, i. e. all dynamos, turbines, pressure pumps, propellers, explosion and steam driven engines, all furnaces, gas and electric heating appliances, all soil-tilling and harvesting machinery, etc.

* Martino Aichner ( nicknamed " Dolphin "), who made an inauspicious start to his career by hitting the sea during a low-level run in training that destroyed the propellers of both wing-mounted engines of his Sparviero, and running on only the power of the central engine, managed a sea landing.

Gas turbines are also used for electrical power generation and some ships use a combination: the Queen Mary 2 has a set of diesel engines in the bottom of the ship plus two gas turbines mounted near the main funnel ; all are used for generating electrical power, including that used to drive the propellers.

Second, our military missile program, going forward so successfully, does not suffer from our present lack of very large rocket engines, which are necessary in distant space exploration.

If, for some reason such as economy, we are not going to develop aircraft nuclear propulsion with a sense of national urgency, then we should turn our effort to developing jet engines with a thrust-to-weight ratio of 12 or 15 to one.

The reason that we are not going ahead full speed to develop high thrust-to-weight engines is that it would cost perhaps a billion dollars -- and you don't spend that sort of money if aircraft are obsolete.

Most modern AFVs are superficially similar in design to their World War II counterparts, with significantly better armour, weapons, engines and suspension-however with an increase in the capacity of transport aircraft allowing AFVs to be practically transported by air, many armies are replacing some or all of their traditional heavy vehicles with lighter airmobile versions, often with wheels instead of tracks.

* Motorboats, which are boats propelled by mechanical means, such as engines.

Diesel engines are run with an excess of oxygen to combust small particles that tend to form with only a stoichiometric amount of oxygen, necessarily producing nitrogen oxide emissions.

Combustion instabilities are a major concern in ground-based gas turbine engines because of NOx emissions.

) Such engines are possible in laboratory settings, but mass production is not feasible with current technology.

Other CPAN search engines that have been set up are:

This occurs because internal combustion engines are heat engines, and higher efficiency is created because higher compression ratios permit the same combustion temperature to be reached with less fuel, while giving a longer expansion cycle, creating more mechanical power output and lowering the exhaust temperature.

They are powered by nuclear engines that will fatally over-heat if they stop.

Large engines are usually multicylinder to reduce pulsations from individual firing strokes, with more than one piston attached to a complex crankshaft.

Many small engines, such as those found in mopeds or garden machinery, are single cylinder and use only a single piston, simplifying crankshaft design.

Most modern high speed production engines are classified as " over square " or short-stroke, wherein the stroke is less than the diameter of the cylinder bore.

Rotary engines such as the Wankel engine are referred to as pistonless rotary engines.

Monolithic crankshafts are most common, but some smaller and larger engines use assembled crankshafts.

Iron crankshafts are today mostly found in cheaper production engines ( such as those found in the Ford Focus diesel engines ) where the loads are lower.

* Database language engines ( or processors )-Most operations upon databases are performed through expression in Database languages ( see above ).