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2. Two-stroke power valve system - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_power_valve_system

   A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...

3. Raychem - Wikipedia

   en.wikipedia.org/wiki/Raychem

   The Raychem Corporation was founded and headquartered in Menlo Park, California, in 1957 by Paul M. Cook, James B. Meikle, and Richard W. Muchmore. [1] Led by Cook and second-in-command Robert M. Halperin, Raychem became a pioneer of commercial products realized through radiation chemistry.

4. Four-stroke power valve system - Wikipedia

   en.wikipedia.org/wiki/Four-stroke_power_valve_system

   A four-stroke power valve is a device fitted to four-stroke engines that constantly adjusts the internal diameter of the exhaust system to better suit the speed of the engine. Yamaha was the first to develop such a system, called the Exhaust Ultimate Power Valve (EXUP). [1] It first appeared on the Yamaha FZR EXUP and was later used on many ...

5. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Choke valve, Butterfly valve used to limit air intake in internal combustion engine. (Not to be confused with choke valves used in industrial flow control, above.) Clapper valve: a type of check valve used in the Siamese fire appliance to allow only one hose to be connected instead of two (the clapper valve blocks the other side from leaking out)

6. Solenoid valve - Wikipedia

   en.wikipedia.org/wiki/Solenoid_valve

   For example, a popular 3 ⁄ 4-inch 150 psi sprinkler valve, intended for 24 VAC (50–60 Hz) residential systems, has a momentary inrush of 7.2 VA, and a holding power requirement of 4.6 VA. [5] Comparatively, an industrial 1 ⁄ 2 -inch 10,000 psi valve, intended for 12, 24, or 120 VAC systems in high-pressure fluid and cryogenic applications ...

7. Shape-memory coupling - Wikipedia

   en.wikipedia.org/wiki/Shape-memory_coupling

   It was first produced in the late 1960s or early 1970s by the Raychem Corporation under the trade name CryoFit. Manufacture of these couplings for aerospace hydraulic connections was later transferred to AMCI (Advanced Metal Components Inc.) and then later to Aerofit Products Inc. Additional products using the same shape-memory alloy technology ...