In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. This dilutes the O in the incoming air stream and provides gases inert to combustion to act as absorbents of combustion heat to reduce peak in-cylinder temperatures. NO is produced in a narrow band of high cylinder temperatures and pressures. Another primary benefit of external EGR valves on a spark ignition engine is an increase in efficiency, as charge dilution allows a larger throttle position and reduces associated pumping losses.

is the egr valve part of the engine?

A: yes

Forrest Gump is a 1994 American romantic comedy-drama film based on the 1986 novel of the same name by Winston Groom. The film was directed by Robert Zemeckis and stars Tom Hanks, Robin Wright, Gary Sinise, Mykelti Williamson, and Sally Field. The story depicts several decades in the life of its titular character (Hanks), a slow-witted but kind-hearted, good-natured and athletically prodigious man from Alabama. Gump witnesses, and in some cases influences, some of the defining events of the latter half of the 20th century in the United States, specifically the period between his birth in 1944 and 1982. The film differs substantially from Winston Groom's novel, including Gump's personality and several events that were depicted.

was forrest gump a book before the movie?

A: yes

The cougar (Puma concolor), also commonly known as the puma, mountain lion, panther, or catamount, is a large felid of the subfamily Felinae native to the Americas. Its range, from the Canadian Yukon to the southern Andes of South America, is the widest of any large wild terrestrial mammal in the Western Hemisphere. An adaptable, generalist species, the cougar is found in most American habitat types. It is the biggest cat in North America and the second-heaviest cat in the New World after the jaguar. Secretive and largely solitary by nature, the cougar is properly considered both nocturnal and crepuscular, although daytime sightings do occur. The cougar is more closely related to smaller felines, including the domestic cat (subfamily Felinae), than to any species of subfamily Pantherinae, of which only the jaguar is native to the Americas.

is a mountain lion and cougar the same thing?

A: yes

''Mr. Monk and the End'' is the two-part series finale of the USA Network original criminal mystery dramedy television series, Monk. It is the fifteenth and sixteenth episodes of the eighth and final season, and is the 124th and 125th episodes in the series overall. Adrian Monk (Tony Shalhoub) finally discovers his wife Trudy's (Melora Hardin) murderer after twelve years of searching, concluding a seven-year, eight-season long arc. When ''Part 2'' aired, it set a series high and a new viewership record for the most watched episode of a regular drama series ever in basic cable with 9.4 million viewers. Both parts were written by series creator Andy Breckman and directed by Randall Zisk.

did monk ever solve his wife's case?

A:
yes