hand pump — A device in a hydraulic system used to manually build up hydraulic pressure as a backup in case of hydraulic pump failure. In some earlier aircraft, the hand pump was also used to transfer fuel from one tank to another in case of electrical or… … Aviation dictionary
Pump — For information on Wikipedia project related discussions, see . A pump is a device used to move gases, liquids or slurries. A pump moves liquids or gases from lower pressure to higher pressure, and overcomes this difference in pressure by adding… … Wikipedia
Chaplin's Patent Distilling Apparatus with Steam Pump — Chaplins patent sea water distilling apparatus. Alexander Chaplin Co. (also known as A.C. and Co., Alex. Chaplin Co.) was an important and highly regarded[1] engineering and manufacturing syndicat … Wikipedia
Leviathan and the Air-Pump — Infobox Book name = Leviathan and the Air Pump title orig = translator = image caption = author = Steven Shapin and Simon Schaffer illustrator = cover artist = country = USA language = English series = genre = publisher = Princeton University… … Wikipedia
Stirling engine — Alpha type Stirling engine. There are two cylinders. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator … Wikipedia
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… … Wikipedia
Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… … Wikipedia
Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker … Wikipedia
Al-Jazari — Abū al Iz Ibn Ismā īl ibn al Razāz al Jazarī (1136 1206) ( ar. أَبُو اَلْعِزِ بْنُ إسْماعِيلِ بْنُ الرِّزاز الجزري) was an important Arab [citation|title=Archimedes Weapons of War and Leonardo|first=D. L.|last=Simms|journal=The British Journal… … Wikipedia
When the handle of the wobble pump is operated, the negative pressure created on whatever side is pulled upward lifts the lower flapper, allowing the fuel to flow behind it. As the handle is moved in the opposite direction, the lower closes, preventing the fuel from escaping back into the line and causing it to flow through the passage shown by the arrows. The fuel is then forced through the upper flapper on the opposite side by the upward movement of opposite end of the wobble blade, thence to the carburetor. The cycle is repeated each time the handle is moved in either direction.