58results about How to "Reduce misfire" patented technology

A internal-combustion engine having at least two intake ports (3) at least one exhaust gas port (4) and at least one ignition device (14) per cylinder (1), and having a combustion chamber (1.1) into which combustion chamber the intake ports open at a flat angle. The piston crown (11.1) and the cylinder cover (2.1) are substantially roof-shaped in vertical section. A fuel injection nozzle (8) opens into the cylinder (1) near the inlet region of the intake ports (3) between the intake valves (6), wherein, measured in relation to the cylinder axis, (5) the angle of the jet axis (9) of the fuel injection nozzle (8) is greater than the angle of the intake ports (3). An ignition device (14) is arranged in the cylinder cover(2.1) close to the cylinder axis (5). A through-shaped recess (12) is provided in the piston crown (11.1) bounded by a through base (12.1) and side walls (16) and inter-sects the roof ridge (11.2) on the piston crown. The trough base (12.1) being inclined towards the fuel injection nozzle (8) and ending in a wall zone (12.2) extending steeply upwards on its side facing the fuel injection nozzle (8), wherein the transition regio (15) between the through base (12.1) and the side walls (16) has a substantially barrel-shaped contour in plan view.

The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil tank are connected via a switching valve to a third pipe, connected to an end of the pilot oil main pipe. Before operating stops, the pilot oil is discharged by opening an exhaust valve, and thereafter, the switching valve is switched and pilot oil which the ignition stimulant has been added to is supplied into the pipe. Consequently, the pilot oil downstream from the main pipe is replaced with the pilot oil which the ignition stimulant has been added to. Therefore, at the time of the next activation, pilot oil which the ignition stimulant has been added to is sprayed from the fuel valve, and, as a result, misfire at the time of activation is reduced, and a highly reliable engine is obtained.

A method for operating an engine in response to a waste gate position is presented. In one example, the method adjusts an actuator to reduce the possibility of misfire in an engine cylinder in response to waste gate position. In this way, it may be possible to adjust engine operation for varying engine operating conditions.

The invention discloses a control system and a control method of an oil / gas dual-fuel engine in electronic control oil supply. The control system comprises a high-pressure common-rail injection system, a fuel gas injection system and an oil / gas dual-fuel electronic control system, wherein the oil / gas dual-fuel electronic control system comprises a sensor part, an actuator, a dual-fuel ECU (Electronic Control Unit) and a fuel oil ECU, the oil / gas dual-fuel electronic control system controls the diesel oil amount through an oil injector, the fuel gas amount through a fuel gas control injection nozzle and the air inlet amount through an electronic throttling valve body, and an air-fuel ratio when the oil / gas dual-fuel engine works can be detected and controlled in a closed loop feedback way through a wide-domain oxygen sensor. According to the control method disclosed by the invention, the oil / gas dual-fuel engine can be switched under a pure fuel oil working mode and a fuel oil / fuel gas dual-fuel working mode, the good running of the oil / gas dual-fuel engine can be controlled, the diesel injection amount can be accurately controlled according to different working states of a diesel engine, the injection time, the injection duration, the air inlet amount and the air-fuel ratio of gas fuel can also be controlled, thus the safe and stable running of the dual-fuel engine can be ensured, the fuel consumption can be reduced, and the exhaust gas emission can be reduced.

Methods and systems are provided for performing a transmission gear downshift by temporarily operating in an intermediate gear. A transmission gear may be downshifted from a higher gear to an intermediate gear and then downshifted to a requested lower gear in response to ambient humidity levels and condensate levels within the charge air cooler. Downshifting through intermediate gears can also be controlled based on shift requests.

The invention discloses a control system for a wireless detonator. The control system comprises a controller, wireless communication equipment, a server, a first client end and a second client end, wherein the controller is used for sending a first detonating request input by a blaster to the server through the wireless communication equipment; the first client end is used for sending security alert information input by an administrator to the server; and the server is used for sending the first detonating request and the security alert information to the second client end, receiving a seconddetonating request sent by the second client end, and sending the second detonating request to the first client end. The first client end is also used for sending a detonating instruction to the server, and the server is also used for sending the detonating instruction to the controller through the wireless communication equipment, so that the controller controls the detonator to be detonated according to the detonating instruction. Thus, the phenomenon of mistaken detonation can be reduced, and the security is improved.