Patent ID: 7770555
Filing Date: 2010-08-10
Classification: F01N,F02D,F02P

Abstract:
1. A device for controlling combustions of an inline-four cylinder engine four pistons of cylinders per crankshaft, the device comprising: a first module for causing simultaneous combustions of two cylinders of the four cylinders, when a crank phase angle becomes a predetermined crank phase angle, the two cylinders having a same phase angle of crank pins of the crankshaft; and a second module for causing a combustion of one of the other cylinders when the crank phase angle is offset by a first crank phase angle from the predetermined crank phase angle, and further causing a combustion of the remaining one cylinder of the four cylinders when the crank phase angle is offset by a second crank phase angle from the combustion of the one of the other cylinders; wherein the first module repeats the simultaneous combustions of the two cylinders only at every 720 degrees of revolution of the crankshaft in a combustion stroke, when the crank phase angle is offset by a third crank phase angle from the crank phase angle which is added to a sum of the predetermined crank phase angle, the first crank phase angle and the second crank phase angle to return to the predetermined crank phase angle.