Definition of LAVAL. Meaning of LAVAL. Synonyms of LAVAL

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Definition of LAVAL

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de Laval turbine
Turbine Tur"bine, n. A form of steam engine analogous in construction and action to the water turbine. There are practically only two distinct kinds, and they are typified in the de Laval and the Parsons and Curtis turbines. The de Laval turbine is an impulse turbine, in which steam impinges upon revolving blades from a flared nozzle. The flare of the nozzle causes expansion of the steam, and hence changes its pressure energy into kinetic energy. An enormous velocity (30,000 revolutions per minute in the 5 H. P. size) is requisite for high efficiency, and the machine has therefore to be geared down to be of practical use. Some recent development of this type include turbines formed of several de Laval elements compounded as in the ordinary expansion engine. The Parsons turbine is an impulse-and-reaction turbine, usually of the axial type. The steam is constrained to pass successively through alternate rows of fixed and moving blades, being expanded down to a condenser pressure of about 1 lb. per square inch absolute. The Curtis turbine is somewhat simpler than the Parsons, and consists of elements each of which has at least two rows of moving blades and one row of stationary. The bucket velocity is lowered by fractional velocity reduction. Both the Parsons and Curtis turbines are suitable for driving dynamos and steamships directly. In efficiency, lightness, and bulk for a given power, they compare favorably with reciprocating engines.
Lavalliere
La valliere La val`liere", or Lavalliere La`val`liere", n. A neck ornament consisting of a chain and single pendant, or drop.

Meaning of LAVAL from wikipedia

- Look up Laval in Wiktionary, the free dictionary. Laval means The Valley in old French and is the name of: House of Laval, a French noble family originating...
- Pierre Jean Marie Laval (French: [pjɛʁ laval]; 28 June 1883 – 15 October 1945) was a French politician. He served as Prime Minister of France three times:...
- to the south by the Rivière des Prairies. Laval occupies all of Île Jésus as well as the Îles Laval. Laval constitutes one of the 17 administrative regions...
- Université Laval (French pronunciation: [ʏnivaɛ̯ʁ̥sɪ̥te laval]; English: Laval University) is a public research university in Quebec City, Quebec, Canada...
- Laval (French pronunciation: [laval] ) is a town in western France, about 300 km (190 mi) west-southwest of Paris, and the capital of the Mayenne department...
- coach Erik de Laval (1888–1973), Swedish modern pentathlete François de Laval (1623–1708), the first bishop of Quebec City Georg de Laval (1883–1970),...
- Alfa Laval AB is a Swedish company, founded in 1883 by Gustaf de Laval and Oscar Lamm. The company started by providing centrifuges to dairies to be used...
- The Laval Rocket (French: Rocket de Laval) are a professional ice hockey team in the American Hockey League (AHL) based in Laval, Quebec. The team began...
- Karl Gustaf Patrik de Laval (Swedish pronunciation: [ˈɡɵ̂sːtav dɛ laˈvalː] ; 9 May 1845 – 2 February 1913) was a Swedish engineer and inventor who made...
- Tetra Laval is a Swiss-domiciled multinational corporation of Swedish origin, with headquarters in Pully (Vaud), Switzerland. The Tetra Laval Group provides...