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More complex dry-sump systems may scavenge oil from other areas where oil may pool, such as in the valvetrain. Power can be further increased if the dry-sump system is designed to create a vacuum inside the crankcase, which reduces air drag (or 'windage') on moving parts as well. Improved pump efficiency to maintain oil supply to the engine.
Diagram of uniflow scavenging. Scavenging is the process of replacing the exhaust gas in a cylinder of an internal combustion engine with the fresh air/fuel mixture (or fresh air, in the case of direct-injection engines) for the next cycle. If scavenging is incomplete, the remaining exhaust gases can cause improper combustion for the next cycle ...
A pit latrine, also known as pit toilet, is a type of toilet that collects human waste in a hole in the ground. [2] Urine and feces enter the pit through a drop hole in the floor, which might be connected to a toilet seat or squatting pan for user comfort. [ 2 ]
A Blair toilet with an exhaust pipe. The Blair Toilet (a.k.a. Blair Latrine) is a pit toilet designed in the 1970s. It was a result of large-scale projects to improve rural sanitation in Rhodesia under UDI at the Blair Research Institute, and then deployed further during the 1980s after Zimbabwean Independence.
Note: These diagrams represent a configuration typical in the USA, mechanisms may vary in other countries [citation needed]. The toilet ballcock, long made of brass and later made of plastic, was superseded by the float cup, pioneered in 1957 by the Fluidmaster founder Adolf Schoepe , which is integrated with the tank’s fill valve and so ...
A latrine is a toilet or an even simpler facility that is used as a toilet within a sanitation system. For example, it can be a communal trench in the earth in a camp to be used as emergency sanitation , a hole in the ground ( pit latrine ), or more advanced designs, including pour-flush systems.
"Manual scavenger" means a person engaged or employed, at the commencement of this Act or at any time thereafter, by an individual or a local authority or an agency or a contractor, for manually cleaning, carrying, disposing of, or otherwise handling in any manner, human excreta in an insanitary latrine or in an open drain or pit into which the ...
An illustration of a man sitting on the toilet defecating. The sitting defecation posture involves sitting with hips and knees at approximately right angles , as on a chair. So-called "Western-style" flush toilets and also many types of dry toilets are designed to be used in a sitting posture.