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2 results about "Otto cycle" patented technology
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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 happens to a mass of gas as it is subjected to changes of pressure, temperature, volume, addition of heat, and removal of heat. The mass of gas that is subjected to those changes is called the system. The system, in this case, is defined to be the fluid (gas) within the cylinder. By describing the changes that take place within the system, it will also describe in inverse, the system's effect on the environment. In the case of the Otto cycle, the effect will be to produce enough net work from the system so as to propel an automobile and its occupants in the environment.
Floating body
The floating body is provided with: a floating body main body; the Otto cycle engine is arranged on the floating body main body; the natural gas tank is arranged on the floating body main body and can store natural gas; a fuel supply line for supplying natural gas from the natural gas tank to the Otto cycle engine; and a methane value improving unit provided in the floating body main body and supplying at least one of carbon dioxide and nitrogen to the natural gas supplied to the Otto cycle engine.
Owner:MITSUBISHI SHIPBUILDING CO LTD
Pressure control method and device of an intake manifold of an otto cycle internal combustion engine
Method of controlling a pressure in an intake manifold (IT) of an Otto cycle internal combustion (E) engine, equipped with a throttle valve (TH) and an electric actuator (Act) arranged to control a target position (αdes) of a shutter (SH) of the butterfly valve and a pressure sensor (Sns), the method comprising a control procedure (CTRL) of the actuator as a function of a first pressure error between a value of target pressure ( Pd.es ) and an estimated pressure value (Pcalc), in which the estimate of the estimated pressure value (Pcalc) is a function of a second error (Ectrl) between an average value (Pmeas_filt) of the measured pressure and an average value ( Pcalc_filt) of the estimate (Pcalc) of the pressure value.
Owner:FPT IND SPA