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Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...
Sight-glass lubricator. A needle valve adjusts the rate of flow, which may be seen as drops passing through the window beneath the glass reservoir.. A total-loss oiling system is an engine lubrication system whereby oil is introduced into the engine and then either burned or ejected overboard.
Simple hand-operated reciprocating pump. The simplest example is the bicycle pump, which is used ubiquitously to inflate bicycle tires and various types of sporting balls. [1] Power-operated deep well reciprocating pump; By mechanism. Single-acting reciprocating pump consists of a piston of which only one side engages the fluid being displaced. [2]
A quick-start guide or quickstart guide (QSG), also known as a quick reference guide (QRG), is in essence a shortened version of a manual, meant to make a buyer familiar with their product as soon as possible. This implies the use of a concise step-based approach that allows the buyer to use a product without any delay, if necessary including ...
A circulator pump for home use. A circulator pump or circulating pump is a specific type of pump used to circulate gases, liquids, or slurries in a closed circuit with small elevation changes. They are commonly found circulating water in a hydronic heating or cooling system.
In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO x) emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines. [1] EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders .
Recirculating ball, also known as recirculating ball and nut or worm and sector, is a steering mechanism commonly found in older automobiles, off-road vehicles, and some trucks. Most newer cars use the more economical rack and pinion steering instead, but some upmarket manufacturers (such as BMW and Mercedes-Benz ) held on to the design until ...
These Crossley Otto Scavenging Engines were made possible by the recent change from slide valves to poppet valves, which allowed more flexible control over valve timing events. [1] The closing of the exhaust valve occurred more than 30 degrees later than on earlier engines, giving a long 'overlap' period (when both the intake and exhaust valves ...