Driver's brake valve

Driver's brake valve
Knorr D2 driver's brake valve (below) and auxiliary brake valve (above) on a steam locomotive
Operation of the driver's brake valve in an ICE T in the maximum braking position

The driver's brake valve is a complicated valve system for controlling the compressed air brake of a railway vehicle. Depending on its setting, it controls whether the brake pipes of a compressed air brake are evacuated and thus whether braking is applied or maintained; or if the brake pipes are connected to a compressed air reservoir, it controls whether the brakes are released again or remain released.

This equipment is found on the footplate of locomotives or in the driver's cab of power cars and driving cars in multiple unit's, hence the name.

In the simplest case the position of the lever controls the extent to which the valve opens, how quickly compressed air can be released from the pipes or the reservoir in the braking system.

The setting of modern driver's brake valves controls the dynamic reduction of the remaining pressure in the brake pipes.

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Electro-pneumatic brake system on British railway trains — The Electro pneumatic brake system on British railway trains was introduced in 1950. The Southern Region of British Railways operated an intensive self contained fleet of electric multiple units for suburban and middle distance passenger trains.… …   Wikipedia

  • Railway brake — A traditional clasp brake: the brake shoe (brown) bears on the surface (tyre) of the wheel (red), and is operated by the levers (grey) on the left …   Wikipedia

  • Vacuum brake — The vacuum brake is a braking system used on trains. It was first introduced in the mid 1860s and a variant, the automatic vacuum brake system became almost universal in British train equipment, and in those countries influenced by British… …   Wikipedia

  • Emergency brake (train) — This article is about emergency brakes on trains. For emergency brakes in cars, see hand brake. Driver s brake handle in a UK Electric Multiple Unit On trains, the expression emergency brake has several meanings: The maximum brake force available …   Wikipedia

  • Railway air brake — Piping diagram from 1920 of a Westinghouse E T Air Brake system on a locomotive …   Wikipedia

  • Steam brake — A steam brake is a type of brake for steam locomotives and their tenders, whereby a steam cylinder works directly on the brake linkages. Steam brakes were primarily used on railways where vacuum brakes were used to brake the train, but where… …   Wikipedia

  • Compression release engine brake — Jacobs Engine Brake Division logo. A vie …   Wikipedia

  • Hand brake — In cars, the hand brake (also known as the emergency brake, e brake, park brake, slide stick or parking brake) is a latching brake usually used to keep the car stationary. Automobile e brakes usually consist of a cable (usually adjustable for… …   Wikipedia

  • Hydraulic brake — The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is usually near the operator of the vehicle, to the actual brake… …   Wikipedia

  • Jake brake — is a trademark for vehicle retarding systems, or engine brakes, developed and manufactured by Jacobs Vehicle Systems, Inc. The trademark JAKE BRAKE should not be used to refer to engine brakes in general. An engine brake is a braking system used… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”