Pistonless rotary engine

A pistonless rotary engine is an internal combustion engine that does not use pistons in the way a reciprocating engine does, but instead uses one or more rotors, sometimes called rotary pistons. An example of a pistonless rotary engine is the Wankel engine.

The term rotary combustion engine has been suggested as an alternative name for these engines to distinguish them from early (generally up to the early 1920s) aircraft engines and motorcycle engines also known as rotary engines. However, both continue to be called rotary engines and only the context determines which type is meant.

Pistonless rotary engines

The basic concept of a (pistonless) rotary engine avoids the reciprocating motion of the piston with its inherent vibration and rotational-speed-related mechanical stress. As of 2006 the Wankel engine is the only successful pistonless rotary engine, but many similar concepts have been proposed and are under various stages of development. Examples of rotary engines include:

Engine

An engine or motor is a machine designed to convert one form of energy into mechanical energy.Heat engines, including internal combustion engines and external combustion engines (such as steam engines), burn a fuel to create heat, which then creates a force. Electric motors convert electrical energy into mechanical motion; pneumatic motors use compressed air and others—such as clockwork motors in wind-up toys—use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and eventually motion.

Terminology

The word "engine" derives from Old French engin, from the Latin ingenium–the root of the word ingenious. Pre-industrial weapons of war, such as catapults, trebuchets and battering rams, were called "siege engines", and knowledge of how to construct them was often treated as a military secret. The word "gin", as in "cotton gin", is short for "engine". Most mechanical devices invented during the industrial revolution were described as engines—the steam engine being a notable example.

Engine (Jinn album)

Engine (エンジン, Enjinn) is Jinn's second mini album, released on July 14, 2010.

Track listing

References

Ray Alder

Ray Alder (born as Ray Balderrama on August 20, 1967) has been the lead vocalist of the progressive metal band Fates Warning since their 1988 release No Exit.

He has released two albums Engine in 1999 and Superholic in 2002 with Engine.

He also sang on Redemption's albums The Origins of Ruin, The Fullness of Time, Snowfall on Judgment Day and This Mortal Coil, having produced their debut self-titled release in 2002.

He has recently worked with underground emcee/producer Necro for his album entitled Death Rap.

Ray Alder was featured at a show with the band Dream Theater at Los Angeles, California on May 18, 1998.

On March 16, 2010, Fates Warning released a deluxe edition of their 1991 album, Parallels. This edition has been fully re-mastered and contains over three hours of music and live footage. Parallels was one of Fates Warning's most successful releases due to the commercial success of the singles Eye To Eye, Point Of View and We Only Say Goodbye. According to Metal Blade records (2010) Parallels has proven to be one of the most influential albums in the prog and metal genres, despite its hotly debated status among fans as a "commercial" sounding album. Commenting on the album, Ray Alder is quoted on the "Metal Blade Records Website".  as follows, "I think it's one of the best albums we ever put out and I'm happy that fans have the chance to take a second look at this important record. The lineup, the songs and the cover art all came together to make a great package when originally recorded and the bonus DVD really adds a fresh perspective to the album."

Rotor

Rotor may refer to:

Science and technology

Engineering

Computing

Shared Source Common Language Infrastructure

The Shared Source Common Language Infrastructure (SSCLI), previously codenamed Rotor, is Microsoft's shared source implementation of the CLI, the core of .NET. Although the SSCLI is not suitable for commercial use due to its license, it does make it possible for programmers to examine the implementation details of many .NET libraries and to create modified CLI versions. Microsoft provides the Shared Source CLI as a reference CLI implementation suitable for educational use.

History

Beginning in 2001, Microsoft announced they would release part of the .NET framework infrastructure source code in Shared source through ECMA, as part of the C# and CLI standardization process.

On March 2002, Microsoft released version 1.0 of the Shared Source Common Language Infrastructure, also called Rotor. The Shared Source CLI was initially pre-configured to run on Windows, but could also be built on FreeBSD (version 4.7 or newer), and Mac OS X 10.2. It was designed such that the only thing that needed to be customized to port the Shared Source CLI to a different platform was a thin Platform Abstraction Layer (PAL).

Lee wave

In meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered in 1933 by two German glider pilots, Hans Deutschmann and Wolf Hirth, above the Krkonoše. They are periodic changes of atmospheric pressure, temperature and orthometric height in a current of air caused by vertical displacement, for example orographic lift when the wind blows over a mountain or mountain range. They can also be caused by the surface wind blowing over an escarpment or plateau, or even by upper winds deflected over a thermal updraft or cloud street.

The vertical motion forces periodic changes in speed and direction of the air within this air current. They always occur in groups on the lee side of the terrain that triggers them. Usually a turbulent vortex, with its axis of rotation parallel to the mountain range, is generated around the first trough; this is called a rotor. The strongest lee waves are produced when the lapse rate shows a stable layer above the obstruction, with an unstable layer above and below.