About 30 results
https://drivepatents.com/patents/991191 · 1 May 2013
The method involves sweeping a heat exchanger (14) by a heat source (16) to heat working liquid. The hot fluid is expanded by an expansion unit (22). A cooling exchanger (26) is swept by cooling fluid (28) i.e. water, for cooling the working fluid. The wor...
https://drivepatents.com/patents/985056 · 17 Apr 2013
The method involves performing a measurement relative to flow rate of gas, fresh air or burnt gas, in upstream of a mixing space in which the air and the burnt gas are mixed. Burnt gas mass fraction (BGRbp) present in the space is estimated from the measur...
https://drivepatents.com/patents/985042 · 17 Apr 2013
The method involves measuring a pressure difference on level of an exhaust gas recirculation (EGR) valve (6). A burnt gas fraction set point in an intake manifold (3) is selected. An opening set point for the valve is calculated from pressure drop relation...
https://drivepatents.com/patents/985181 · 3 Apr 2013
The method involves measuring an acoustic emission response of a battery for internal states of the battery (E1), and recording response characteristic signals. The response characteristic signals are processed (E2), and an acoustic signature of the intern...
https://drivepatents.com/patents/985305 · 27 Mar 2013
The method involves determining operational zone of the engine (10) in which particulates are emitted during combustion of the fuel/air mixture. The fuel/air mixture resulting from indirect injection of a gaseous fuel is introduced into the combustion cham...
https://drivepatents.com/patents/993497 · 23 Jan 2013
The method involves selecting combustion indicators e.g. crank angle position (CA10), and defining a multidimensional space in which each dimension corresponds to one of the indicators and combustion is represented by a point. A closed surface surrounding ...
https://drivepatents.com/patents/995355 · 5 Dec 2012
The method involves constructing a wave equation model of a cylinder-head based on a physical model describing propagation of waves in a solid medium. Coefficients of a Fourier decomposition of a vibration signal from a cylinder pressure sensor/an accelero...
https://drivepatents.com/patents/1006025 · 18 Jan 2012
The method involves determining a crank angle value at which maximum pressure of a cylinder (12) occurs in a combustion chamber (14), during combustion of a fuel mixture. The value is compared with a maximum angle threshold value representing an abnormal c...
https://drivepatents.com/patents/1006252 · 11 Jan 2012
The device i.e. gear box, has a primary shaft (34) connected to a heat engine (10) through a disengageable coupling i.e. centrifugal clutch (36). The shaft carries toothed wheels (50, 52) cooperating with toothed wheels (54, 56) carried by secondary shaft ...
https://drivepatents.com/patents/1007786 · 16 Nov 2011
The method involves injecting fresh air into an exhaust during cold start phase of an internal combustion engine and expansion phase. An exhaust valve (34) is opened when pressure in a combustion chamber (18) is lower than pressure prevailing at the exhaus...