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Valve seats are often formed by first press-fitting an approximately cylindrical piece of a hardened metal alloy, such as Stellite, into a cast depression in a cylinder head above each eventual valve stem position, [1] and then machining a conical-section surface into the valve seat that will mate with a corresponding conical section of the ...
Martin-Baker seats have been fitted into over 200 fixed-wing and rotary types with the most recent being the Lockheed Martin F-35 Lightning II programme. Martin-Baker claimed in 2022 that since the first live ejection test in 1945, [ 3 ] a total of 7,732 lives have been saved by the company's ejection seats.
Martin-Baker Mk.8 is the designation given to two distinct British ejection seat types designed and built by Martin-Baker.The original use applies to a seat developed for the cancelled BAC TSR-2 strike aircraft project of the 1960s, re-use of the designation applies to a lightweight version of the Martin-Baker Mk.10 seat for the Short Tucano and other similar military training aircraft.
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The upper part of the valve stem, within the rocker box, is lubricated by oil. If this oil travels unchecked along the valve stem, engine HC emissions will become excessive. To control this, an elastomeric seal is fitted over the top of the valve guide. These may wear or stiffen with age, so are usually replaced whenever valves are removed for ...
Martin Wells Knapp Painting of Knapp (on left), Orange Scott, and Seth Cook Rees on display at the World Methodist Museum, Lake Junaluska, NC. Martin Wells Knapp (1853–1901) was an American Methodist minister who founded several institutions including the magazine God’s Revivalist in 1888, the International Holiness Union and Prayer League (which became the Pilgrim Holiness Church) in 1897 ...
Multi-seat valve with pneumatic actuator. Multi-seat valves, or multi-port valves, are used to shut off or control complex liquid flows in sterile areas in the beverage and food industry as well as in the fine chemical and pharmaceutical industry. Multi-seat valves often replace combinations of several single-seated valves in aseptic processing.