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The dual combustion cycle (also known as the mixed cycle, Trinkler cycle, Seiliger cycle or Sabathe cycle) is a thermal cycle that is a combination of the 
The dual cycle consists of following operations:
* Process 1-2: Isentropic compression
* Process 2-3: Addition of heat at constant volume.
* Process 3-4: Addition of heat at constant pressure.
* Process 4-5: Isentropic expansion.
* Process 5-1: Rejection of heat at constant volume.
Lino Guzzella, Christopher Onder: ''Introduction to Modeling and Control of Internal Combustion Engine Systems'', 2nd edition, Springer, Berlin/Heidelberg, , p. 334
Г. В. Тринклер: ''Двигателестроение за полустолетие. Очерки современника'', 2nd edition, Речной транспорт,
Thermodynamic cycles
{{Thermodynamics-stub
Otto cycle
An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark ignition piston engine. It is the thermodynamic cycle most commonly found in automobile engines.
The Otto cycle is a description of what happ ...
and the Diesel cycle
The Diesel cycle is a combustion process of a reciprocating internal combustion engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected. This is in contrast to ign ...
, first introduced by Russian-German engineer Gustav Trinkler, who never claimed to have developed the cycle himself. Heat is added partly at constant volume (isochoric) and partly at constant pressure (isobaric), the significance of which is that more time is available for the fuel to completely combust. Because of lagging characteristics of fuel this cycle is invariably used for Diesel and hot spot
Hotspot, Hot Spot or Hot spot may refer to:
Places
* Hot Spot, Kentucky, a community in the United States
Arts, entertainment, and media Fictional entities
* Hot Spot (comics), a name for the DC Comics character Isaiah Crockett
* Hot Spot (Tra ...
ignition engines. It consists of two adiabatic and two constant volume and one constant pressure processes.
The dual cycle consists of following operations:
* Process 1-2: Isentropic compression
* Process 2-3: Addition of heat at constant volume.
* Process 3-4: Addition of heat at constant pressure.
* Process 4-5: Isentropic expansion.
* Process 5-1: Rejection of heat at constant volume.
Bibliography
*Cornel Stan: ''Alternative Propulsion for Automobiles'', Springer, 2016, , p. 48References
Saint Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
, 1958, p. 32