Pneumatic Engine

Pneumatic Engine

 

a locomotive in mining to transport trains of trolley cars along underground mines that are hazardous owing to gas. They were first used in the late 1800’s in German mines, and they began to be used in the USSR in the 1960’s.

The pneumatic motors in the locomotive get their air supply from compressed-air tanks with a capacity of 1 to 2 cu m each at a pressure up to 22.5 meganewtons per sq m (225 atmospheres). They can move trains weighing 60-100 tons. The maximum length of a run with one charge of compressed air is usually no more than 5-6 km. Energy consumption is considerably greater than for electric locomotives. For this reason and also because of the frequent recharging of the tanks, pneumatic locomotives are only used in mines that are hazardous owing to gas.

A. A. PARKHOMENKO

References in periodicals archive ?
As part of that program, the pneumatic engine control panels were replaced with electronic control panels.
Air exhausted from the first cylinder enters a reuse tank that is part of the pneumatic engine frame, and then it enters the second cylinder when the crank opens to its inlet position.
Thayer Adsit and Peter Matheson, Newburyport High School, Massachusetts - Pneumatic Engine
The existing pneumatic engine controls are obsolete and difficult to maintain and use.
Mini line for bio should be equipped with dopomiarEw and registration of physical parameters to perform the following tests: pompyhydraulicznych characteristics, hydraulic and pneumatic engine, marking gauges and pressure sensors, fluid viscosity measurement, the measurement of the internal power and efficiency reciprocating compressor,
Twenty years ago this month, a week before Steven Spielberg's movie went into production on Martha's Vineyard using three mechanical sharks--collectively nicknamed "Bruce"--powered with pneumatic engines and launchable by a 65-foot catapult, The New York Times Magazines ran a detailed analysis of "the making of a best-seller.