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

- Laval (/ləˈvæl/ -VAL, French: [laval] ) is a city in Quebec, Canada. It is in the southwest of the province, north of Montreal. It is the largest suburb...
- originating from the town of Laval, Mayenne Laval (surname) Laval, a village in the muni****lity of Sainte-Ode, Luxembourg Province. Laval, Quebec, a city and...
- Laval ([la.val] ) is a town in western France, about 300 km (190 mi) west-southwest of Paris, and the capital of the Mayenne department. Its inhabitants...
- Pierre Jean Marie Laval (French pronunciation: [pjɛʁ laval]; 28 June 1883 – 15 October 1945) was a French politician. During the Third Republic, he served...
- La Val (Italian: La Valle [la ˈvalle]; German: Wengen [ˈvɛŋən]) is a comune (muni****lity) in the province of South Tyrol in northern Italy, located about...
- Université Laval (English: Laval University) is a public research university in Quebec City, Quebec, Canada. The university traces its roots to the Séminaire...
- 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...
- Francis-Xavier de Montmorency-Laval, commonly referred to as François de Laval (30 April 1623 – 6 May 1708), was a French Catholic prelate who served as...
- The ****e–Laval Pact was an initially secret pact made in December of 1935 between French Foreign Minister Pierre Laval and British Foreign Secretary...
- also referred to as Stade Lavallois or simply Laval, is a French ****ociation football club based in Laval in western France. The club was formed on 17...