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Flat-four Engine
A flat-four engine, also known as a horizontally opposed-four engine, is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The most common type of flat-four engine is the boxer-four engine, each pair of opposed pistons moves inwards and outwards at the same time. A boxer-four engine has perfect primary and secondary balance, however, the two cylinder heads means the design is more expensive to produce than an inline-four engine. Boxer-four engines have been used in cars since 1897, especially by Volkswagen and Subaru. They have also occasionally been used in motorcycles and frequently in aircraft. Cessna and Piper use flat four engines from Lycoming and Continental in the most common civil aircraft in the world - the Cessna 172, and Piper Cherokee, while many ultralight and LSA planes use versions of the Rotax 912. Design Most flat-four engines are designed so that each pair of opposing pistons moves inwards and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ULPower UL260i
The ULPower UL260i is a family of aircraft engines, produced by ULPower in Belgium. Design The UL260i series are all lightweight, four-cylinder, four-stroke, horizontally-opposed, air-cooled, direct drive engine designs that feature FADEC with multipoint fuel injection and dual ignition systems.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', pages 262-263. Flying Pages Europe SARL, 2015. Variants ;UL260i :Base model, fuel injection, compression ratio of 8.16:1, producing ;UL260iS :Model with a higher compression ratio of 9.10:1, fuel injection, producing ;UL260iSA :Aerobatic model with a higher compression ratio of 9.10:1, fuel injection, producing ;UL260iF :Model with a higher compression ratio of 9.10:1, fuel injection, producing , due to French regulatory requirements. Applications Specifications See also ;Related development * ULPower UL350i ;Lists * List of aircraft engines ;Comparable engines * HKS 700E * Jabiru 2200 * KFM 112M * P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V6 Engine
A V6 engine is a six-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration. The first V6 engines were designed and produced independently by Marmon Motor Car Company, Deutz Gasmotoren Fabrik and Delahaye. Engines built after World War II include the Lancia V6 engine in 1950 for the Lancia Aurelia, and the Buick V6 engine in 1962 for the Buick Special. The V6 layout has become the most common layout for six-cylinder automotive engines. Design Due to their short length, V6 engines are often used as the larger engine option for vehicles which are otherwise produced with inline-four engines, especially in transverse engine vehicles. A downside for luxury cars is that V6 engines produce more vibrations than straight-six engines. Some sports cars use flat-six engines instead of V6 engines, due to their lower centre of gravity (which improves the handling). The displacement of modern V6 engines is typically between , though ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra 30
The Tatra 30 is an automobile formerly made by the Czech manufacturer Tatra. It was manufactured between 1926 and 1928. From 1928 to 1931 the car was fitted with a newer engine and is therefore called the Tatra 30/52. Design Engine Tatra 30 The Tatra 30 was powered by an OHV air-cooled four-cylinder boxer engine of 1679 cc, positioned at the front and giving a claimed output of 24 PS (17.6 kW). The maximum speed was around 90 km/h. Tatra 30 Sport The Tatra 30 Sport was powered by an engine of a similar design, but with 1910 cc, which gave it 32–35 PS (23.5–25.7 kW). This version was capable of speeds up to 130km/h. Tatra 30/52 During the modernization process the "52" engine was fitted. It had 1911 cc and . This was a transitory mid-version before the production of the successor fully began. It was manufactured for a period of about one year. The Tatra 30 was gradually modernized until it was replaced by the Tatra 52. Backbone tube Power was delivered to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilson-Pilcher
Wilson-Pilcher was an English car company founded in 1901 and acquired by Sir WG Taken Armstrong Whitworth & Co., Limited in 1904. History The company ''Wilson-Pilcher'' was founded in 1901 by Walter Gordon Wilson in London to produce automobiles. In 1904 it was acquired by Sir WG Taken Armstrong Whitworth & Co., Limited and production moved to Newcastle upon Tyne. Percy Pilcher had died in a gliding accident in 1899, and Wilson had been working with him on the engine for an attempt at powered flight. According to Bonhams there is photographic evidence of a wooden mock-up of the car in 1899, and a photo of a working car taken at Stanhope Hall in 1900. Production stopped in 1907. Vehicles The first model had a 9 hp four cylinder flat engine of 2400 cc displacement. In 1903 this was replaced by the 12/16 hp engine of 2694 cc capacity. In 1904 a six-cylinder 18/24 HP engine of 4041 cc capacity was added to the range. In April 1904 The ''Automotor Journal'' gave a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Benz
Carl Friedrich Benz (; 25 November 1844 – 4 April 1929), sometimes also Karl Friedrich Benz, was a German engine designer and automotive engineer. His Benz Patent Motorcar from 1885 is considered the first practical modern automobile and first car put into series production. He received a patent for the motorcar in 1886. His company Benz & Cie., based in Mannheim, was the world's first automobile plant and largest of its day. In 1926 it merged with Daimler Motoren Gesellschaft to form Daimler-Benz which produces the Mercedes-Benz among other brands. Benz is widely regarded as "the father of the car" and "father of the automobile industry". Early life Carl Benz was born Karl Friedrich Michael Vaillant, on 25 November 1844 in Mühlburg, now a borough of Karlsruhe, Baden-Württemberg, which is part of modern Germany. His parents were Josephine Vaillant and a locomotive driver, Johann Georg Benz, whom she married a few months later. According to German law, the child acquired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilson-Pilcher Flat-4 Engine
Wilson-Pilcher was an English car company founded in 1901 and acquired by Sir WG Taken Armstrong Whitworth & Co., Limited in 1904. History The company ''Wilson-Pilcher'' was founded in 1901 by Walter Gordon Wilson in London to produce automobiles. In 1904 it was acquired by Sir WG Taken Armstrong Whitworth & Co., Limited and production moved to Newcastle upon Tyne. Percy Pilcher had died in a gliding accident in 1899, and Wilson had been working with him on the engine for an attempt at powered flight. According to Bonhams there is photographic evidence of a wooden mock-up of the car in 1899, and a photo of a working car taken at Stanhope Hall in 1900. Production stopped in 1907. Vehicles The first model had a 9 hp four cylinder flat engine of 2400 cc displacement. In 1903 this was replaced by the 12/16 hp engine of 2694 cc capacity. In 1904 a six-cylinder 18/24 HP engine of 4041 cc capacity was added to the range. In April 1904 The ''Automotor Journal'' gave a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exhaust Manifold
In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word ''manifold'' comes from the Old English word ''manigfeald'' (from the Anglo-Saxon ''manig'' anyand ''feald'' old and refers to the folding together of multiple inputs and outputs (in contrast, an inlet or intake manifold ''supplies'' air ''to'' the cylinders). Exhaust manifolds are generally simple cast iron or stainless steel units which collect engine exhaust gas from multiple cylinders and deliver it to the exhaust pipe. For many engines, there are aftermarket tubular exhaust manifolds known as headers in American English, as extractor manifolds in British and Australian English,''The Design and Tuning of Competition Engines'', Philip H. Smith, pp. 137–138 and simply as "tubular manifolds" in British English. These consist of individual exhaust headpipes for each cylinder, which then usually converge into one tube called a collector. Headers that do n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firing Order
The firing order of an internal combustion engine is the sequence of ignition for the cylinders. In a spark ignition (e.g. gasoline/petrol) engine, the firing order corresponds to the order in which the spark plugs are operated. In a diesel engine, the firing order corresponds to the order in which fuel is injected into each cylinder. Four-stroke engines must also time the valve openings relative to the firing order, as the valves do not open and close on every stroke. Firing order affects the vibration, sound and evenness of power output from the engine and heavily influences crankshaft design. Cylinder numbering Numbering systems for car engines The numbering system for cylinders is generally based on the cylinder numbers increasing from the front to the rear of an engine (See engine orientation below). However, there are differences between manufacturers in how this is applied; some commonly used systems are as listed below. ;Straight engine Cylinders numbered from front ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harmonic Damper
A harmonic damper is a device fitted to the free (accessory drive) end of the crankshaft of an internal combustion engine to counter torsional and resonance vibrations from the crankshaft. This device must be interference fit to the crankshaft in order to operate in an effective manner. An interference fit ensures the device moves in perfect step with the crankshaft. It is essential on engines with long crankshafts (such as straight-six or straight-eight engines) and V8 engines with cross plane cranks, or V6 and straight-three engines with uneven firing order. Harmonics and torsional vibrations can greatly reduce crankshaft life, or cause instantaneous failure if the crankshaft runs at or through an amplified resonance. Dampers are designed with a specific weight (mass) and diameter, which are dependent on the damping material/method used, to reduce mechanical Q factor, or damp, crankshaft resonances. A harmonic balancer (sometimes called crankshaft damper, torsional damper, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flywheel
A flywheel is a mechanical device which uses the conservation of angular momentum to store rotational energy; a form of kinetic energy proportional to the product of its moment of inertia and the square of its rotational speed. In particular, assuming the flywheel's moment of inertia is constant (i.e., a flywheel with fixed mass and second moment of area revolving about some fixed axis) then the stored (rotational) energy is directly associated with the square of its rotational speed. Since a flywheel serves to store mechanical energy for later use, it is natural to consider it as a kinetic energy analogue of an electrical inductor. Once suitably abstracted, this shared principle of energy storage is described in the generalized concept of an accumulator. As with other types of accumulators, a flywheel inherently smooths sufficiently small deviations in the power output of a system, thereby effectively playing the role of a low-pass filter with respect to the mechanical velocity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Stroke (engine)
In the context of an internal combustion engine, the term stroke has the following related meanings: * A phase of the engine's cycle (e.g. compression stroke, exhaust stroke), during which the piston travels from top to bottom or vice versa. * The type of power cycle used by a piston engine (e.g. two-stroke engine, four-stroke engine). * "Stroke length", the distance travelled by the piston during each cycle. The stroke length––along with bore diameter––determines the engine's displacement. Phases in the power cycle Commonly used engine phases or strokes (i.e. those used in a four-stroke engine) are described below. Other types of engines can have very different phases. Induction-intake stroke The induction stroke is the first phase in a four-stroke (e.g. Otto cycle or Diesel cycle) engine. It involves the downward movement of the piston, creating a partial vacuum that draws a air-fuel mixture (or air alone, in the case of a direct injection engine) into the combusti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Couple (mechanics)
In mechanics, a couple is a system of forces with a resultant (a.k.a. net or sum) moment of force but no resultant force.''Dynamics, Theory and Applications'' by T.R. Kane and D.A. Levinson, 1985, pp. 90-99Free download/ref> A better term is force couple or pure moment. Its effect is to impart angular momentum but no linear momentum. In rigid body dynamics, force couples are ''free vectors'', meaning their effects on a body are independent of the point of application. The resultant moment of a couple is a ''special case'' of moment. A couple has the property that it is independent of reference point. Simple couple ;Definition A couple is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment. The simplest kind of couple consists of two equal and opposite forces whose lines of action do not coincide. This is called a "simple couple".''Dynamics, Theory and Applications'' by T.R. Kane and D.A. Levinson, 1985, pp. 90-99Free ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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