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  2. 2,3,3,3-Tetrafluoropropene - Wikipedia

    en.wikipedia.org/wiki/2,3,3,3-Tetrafluoropropene

    R-1234yf is also a component of zeotropic refrigerant blend R-454B. HFO-1234yf has a GWP less than carbon dioxide, [4] [2] itself 1,430 times less potent than R-134a. [5] For this reason, 2,3,3,3‑tetrafluoropropene is the pre-eminent replacement for R-134a in vehicular air conditioners. As of 2022, 90% of new U.S. vehicles are estimated to ...

  3. trans-1,3,3,3-Tetrafluoropropene - Wikipedia

    en.wikipedia.org/wiki/Trans-1,3,3,3-tetrafluoro...

    The use of R-134a is being phased out because of its high global warming potential (GWP). HFO-1234ze(E) itself has zero ozone-depletion potential (ODP=0), a very low global warming potential (GWP < 1 ), even lower than CO 2 , and it is classified by ANSI/ASHRAE [ 4 ] as class A2L refrigerant (lower flammability (see below) and lower toxicity).

  4. List of Allis-Chalmers engines - Wikipedia

    en.wikipedia.org/wiki/List_of_Allis-Chalmers_engines

    This is a list of internal combustion engines produced by the former Allis-Chalmers Corporation Engine Division for use in their lines of tractors, combine harvesters, other agricultural equipment, engine-generators, and other industrial plant. Allis-Chalmers purchased the Buda Engine Co. in 1953 and took over their well-established line of ...

  5. 1,1,1,2-Tetrafluoroethane - Wikipedia

    en.wikipedia.org/wiki/1,1,1,2-Tetrafluoroethane

    1,1,1,2-Tetrafluoroethane (also known as norflurane (), R-134a, Klea 134a, Freon 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, HFA-134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a lower 100-year global warming ...

  6. Tecumseh Products - Wikipedia

    en.wikipedia.org/wiki/Tecumseh_Products

    In 1956 Tecumseh entered the small engine market acquiring Lauson and in 1957, acquired the Power Products Company- maker of 2 cycle engines found in many antique chainsaws. [6] [7] In 2007, the company's former gasoline engine and power train product lines were sold to Platinum Equity LLC. In December 2008, the company closed its engine ...

  7. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    The second automotive air conditioning refrigerant invented was R-134a. R-134a is a hydrofluorocarbon refrigerant that contains fluorine and hydrogen. The successor to R-12, R-134a was a new refrigerant that no longer contained chlorine that could deplete the ozone layer. R-134a is a greenhouse gas, it has a lower global warming potential than ...

  8. List of vehicles and machines powered by MTU engines

    en.wikipedia.org/wiki/List_of_vehicles_and...

    Class 52, two Maybach MD655 engines; Class 73/9, one MTU 8V 4000 R43L engine [1] Class 168, Class 170 and Class 171: MTU 6R 183TD series (one per car) Class 172: MTU 6H1800R83 (one per car) Class 195 and Class 196: MTU 6H1800R85L (one per car) Class 43s: MTU 16V4000 R41R widely installed in early 2000s, replacing original Paxman Valenta engines.

  9. Working fluid selection - Wikipedia

    en.wikipedia.org/wiki/Working_fluid_selection

    The choice of working fluids is known to have a significant impact on the thermodynamic as well as economic performance of the cycle. A suitable fluid must exhibit favorable physical, chemical, environmental, safety and economic properties such as low specific volume (high density), viscosity, toxicity, flammability, ozone depletion potential (ODP), global warming potential (GWP) and cost, as ...

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