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2. RAM Racing - Wikipedia

   en.wikipedia.org/wiki/RAM_Racing

   RAM Racing was a Formula One racing team which competed during the racing seasons of 1976 to 1985. The team entered other manufacturers' chassis from 1976 to 1980, then ran March 's team from 1981 to 1983, only entering a car entirely their own in 1984 and 1985.

3. Ball valve - Wikipedia

   en.wikipedia.org/wiki/Ball_valve

   A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole through the middle of the ball is in line with the flow inlet, and closed when it is pivoted 90 degrees by the valve handle, blocking the flow. [1]

4. Rocker arm - Wikipedia

   en.wikipedia.org/wiki/Rocker_arm

   This motion causes its other end to press downwards on the top of the valve, opening it. A roller rocker uses needle bearings (or a single bearing ball in older engines) at the contact point between the rocker and the valve, instead of metal sliding on metal. This reduces friction, uneven wear and "bell-mouthing" of the valve guide. [1]

5. Pontiac V8 engine - Wikipedia

   en.wikipedia.org/wiki/Pontiac_V8_engine

   A camshaft with 301/313 degrees of advertised duration, 0.407-inch (10.3 mm) net valve lift, and 76 degrees of valve overlap was specified for actual production engines in lieu of the significantly more aggressive Ram Air IV-spec camshaft that had originally been planned for the engine (initially rated at 310 hp (231 kW) with that cam), but ...

6. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   Air admittance valves (AAVs, or commonly referred to in the UK as Durgo valves and in the US as Studor vents and Sure-Vent®) are negative-pressure-activated, one-way mechanical valves, used in a plumbing or drainage venting system to eliminate the need for conventional pipe venting and roof penetrations.

7. Hydraulic pump - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_pump

   [clarification needed] They were used on board ships where a constant pressure hydraulic system extended through the whole ship, especially to control ball valves [clarification needed] but also to help drive the steering gear and other systems. The advantage of the screw pumps is the low sound level of these pumps; however, the efficiency is ...