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Fiskars Group (natively Fiskars Oyj Abp, formerly Fiskars Oy Ab until 1998), [3] is a Finnish consumer goods company founded in 1649 in Fiskars, a locality now in the town of Raseborg, Finland, about 100 kilometres (62 mi) west of Helsinki. It is one of the oldest continuously operating companies in the World.
A four-stroke spark-ignition engine is an Otto cycle engine. It consists of following four strokes: suction or intake stroke, compression stroke, expansion or power stroke, exhaust stroke. Each stroke consists of 180 degree rotation of crankshaft rotation and hence a four-stroke cycle is completed through 720 degree of crank rotation. Thus for ...
The 1838 two-stroke engine with in-cylinder compression (image taken from Dugald Clerk's book of 1886) Note that all three engines operate on the two-stroke cycle, as did most early engines (the competition was steam engines, which also operate on the two-stroke cycle, and are usually double acting so every stroke is a power 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 an air-fuel mixture (or air alone, in the case of a direct injection engine) into the combustion chamber.
The speed of each power stroke or 'coming indoors' was a feature of the engine and was not easily varied, but there was no need for the engines to run continuously, stroke after stroke. [4] [6] This was a direct contrast to the rotative beam engine, and the rotary nature of almost all other steam engines. With the original Newcomen cycle, the ...
Consultations with researchers from Technical University of Kraków were also held. So far, two working engine models have been made. The preliminary model is based on two existing engines (a two-stroke motorbike engine and a four-stroke small machine engine). This model confirms the concept of two- and four-stroke engines' connection.
Bill Clinton “Hillary and I mourn the passing of President Jimmy Carter and give thanks for his long, good life,” Clinton, the country's 42nd president, said in a statement on Sunday.
A quick return mechanism is an apparatus to produce a reciprocating motion in which the time taken for travel in return stroke is less than in the forward stroke. It is driven by a circular motion source (typically a motor of some sort) and uses a system of links with three turning pairs and a sliding pair.