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unusual facts about A.P.Valves


A.P.Valves

The scuba equipment manufacturer A.P.Valves or Ambient Pressure Diving is at Water-Ma-Trout in Helston in Cornwall in England.


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Alcyon

In 1912 Alcyon competed at the Isle of Man TT races with a 348cc single-cylinder engine featuring two inlet valves and two exhaust valves.

Alfred County Railway

The engineers incorporated developments proposed by L.D. Porta, including GPCS, Lempor exhaust, an improved spark arrestor, lightweight multi-ring articulated piston valves, improved valve events and improved mechanical lubrication.

Anti-lock braking system

; Valves: There is a valve in the brake line of each brake controlled by the ABS.

; Pump: The pump in the ABS is used to restore the pressure to the hydraulic brakes after the valves have released it.

Artificial heart valve

In 1952, Dr. Charles A. Hufnagel implanted caged-ball heart valves in ten patients (six survived the operation), marking the first long-term success in prosthetic heart valves.

Bivalve shell

The mantle, a thin membrane surrounding the body, secretes the shell valves, ligament and hinge teeth.

Cecil Paget

Interest in possible developments of the classic steam locomotive led Paget to design and build a 2-6-2 steam locomotive with many novel features (8 single-acting cylinders, rotary valves, etc.) at Derby.

Counterpoint for Six Valves

# "When Your Lover Has Gone" (Einar Aaron Swan) - 5:07 originally released on 6 Valves

Counterpoint for Six Valves is an album by American jazz trumpeters Don Elliott and Rusty Dedrick which was recorded in 1955 for the Riverside label.

Ferrari 315 S

The 315 S mounted a frontal V12 engine at 60°, with two valves per cylinder, for a total displacement of 3783,40 cm³.

IOE engine

The shape of the combustion chamber as an "inverted hemi-head", along with the angled cylinder head joint and pitched-roof piston crowns, had earlier been used in the 1930 Van Ranst-designed Packard V12 engine, although in this case the valves were both in the block as side valves and the spark plug was poorly placed at the extremity of the combustion chamber.

Joseph Mangan

Joseph Mangan is an American aerospace engineer who, in 2004, told European aviation authorities of his belief that the microprocessors controlling cabin pressurization valves in the new Airbus A380 might allow a sudden depressurization of the passenger cabin in flight—which, at normal cruising altitudes, could endanger the lives of people aboard the aircraft.

Joseph Swan

This area, with nearby Brimsdown subsequently developed as a centre for the manufacture of thermionic valves, cathode ray tubes, etc. and nearby parts of Enfield became an important centre of the electronics industry for much of the 20th century.

Kingston valve

On surface ships, Kingston valves are fitted on ship systems such as fuel tanks, water tanks, and ballast tanks.

Marotta

Early manufacturing sub-contracts for prime contractors such as General Electric Corporation and RCA enabled Marotta to gain experience in what was to become a particular area of expertise – precision valves and machined components for the rocket and guided missile industry.

Mullard–Philips tube designation

In Europe, the principal method of numbering vacuum tubes ("thermionic valves") was the nomenclature used by the Philips company and its subsidiaries Mullard in the UK, Valvo in Germany, and Dario in France, from 1934.

Penske PC-23

In an effort to appeal to smaller engine-building companies, USAC had permitted "stock-block" pushrod engines (generally defined as single non-OHC units fitted with two valves per cylinder actuated by pushrod and rocker arm).

Pickup Truck Racing

From 2011 the trucks could be fitted with either a Vauxhall Petrol Injected 2 litre red top engine or a Ford Duratec engine, both of which are four cylinder engines with a 2 litre capacity and 16 valves.

Radio teleswitch

In October 2011, the BBC admitted that the Droitwich transmitter, including Radio 4's longwave service and Radio Teleswitch, will cease to operate when one of the last two valves breaks, and no effort would be made to manufacture more nor to install a replacement longwave transmitter.

Rane Engine Valve Limited

The plants in Alandur (Chennai), Medchal (Hyderabad), Aziz Nagar (Hyderabad) and Trichy are involved in the manufacture of Engine Valves and the plant in Ponneri (Chennai)is involved in the manufacture of Guides and Tappets.

Reverser

Reversing gear, often called a reverser, controls the valves on a steam engine

Saxidomus gigantea

Numerous valves of this species have been found in the shell middens on Sidney Island in British Columbia, Canada.

Sreenidhi Institute of Science and Technology

Sreenidhi has established a Technology Development and Test Centre in cooperation with industry, to test high pressure valves used in underground mines, with approval from Director General of Mines, Safety.

Tejo Power Station operations

From the box, with the aperture controlled by the nozzles’ valves and by undergoing the Venturi effect, the steam entered the first wheel with a high enough flow rate to get the turbine to 3000 rpm.

Tubular-pneumatic action

Until the advent of the tubular-pneumatic action, all organs used a system of levers and wooden rods called trackers to transmit the action of the keys and stops to the valves contained within the windchests.

Valvetrain

Other mechanisms can be used in place of valve springs to keep the valves closed: Formula 1 engines employ pneumatic valve springs in which pneumatic pressure closes the valves, while motorcycle manufacturer Ducati uses desmodromic a system to mechanically close the valves.

Zone valve

Highly sophisticated systems may use some form of building automation such as BACnet or LonWorks to control the zone valves.


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