A pressure detection device 1 includes: an enclosure assembly configured to be mounted in a communication hole in an internal combustion engine; a diaphragm head 32 provided at one end of the enclosure assembly and configured to receive pressure of combust...

The present invention discloses an on-line cleaning system and control method for carbon deposit in engine intake valve and combustion chamber comprising a cleaning agent tank, a cleaning agent inlet line and a control circuit, the control circuit comprise...

When only smoke is generated, the sensor sensitivity is not substantially changed from the initial value. When both smoke and unburned HC are generated, the number of times the sensor sensitivity becomes lower than the initial value is increased. From thes...

An object of the invention is to provide a control device for an internal combustion engine that regularly and forcefully removes deposit that is accumulated in cylinders and restrains consecutive occurrences of pre-ignition beforehand. The internal combus...

The present disclosure generally relates to an internal combustion engine (1) comprising a cylinder (2) defining a combustion chamber (28) for combusting an air/fuel-mixture therein, a piston (30) reciprocally movable within the cylinder (2) between a top ...

The piston (1) has a cylinder liner (3) in which a piston top surface (1011) defines a combustion chamber (VB) in an installation condition. A piston ring package (4) is formed at an outer surface of the piston between a piston crown (101) facing the combu...

The insert (1) has an annular element (2) that is firmly attached in a radial recess (8) of a cylinder (4). Another annular element (3) that is inserted in a radial groove (9) of the former annular element. The latter annular element is radially moved in t...

A reciprocating engine 1 is so arranged that, in an initial period of an expansion stroke, a high-pressure combustion gas 12 above a piston 2 is introduced via gas passage holes 23 provided in an upper portion 22 of a cylinder inner surface 8 on a thrust s...

The engine has an injector rail (6), injectors (8) and an ultrasonic wave generator (10). The generator produces ultrasonic waves that are transmitted to a membrane and to fuel filled in the rail. Each of the injectors is in fuel communication with the inn...

An area adjacent to an outlet for a fuel injection device is intermittently offset in a high-frequency oscillation (84) along with a valve element that is displaced into a high-frequency oscillation during an opening phase range (98). A piezo actuator acti...