Embodiments may provide a starting device for a gas internal combustion engine whereby non-combusted gas accumulating in the gas internal combustion engine and an exhaust channel is discharged before ignition startup of the gas internal combustion engine and abnormal combustion of the gas internal combustion engine is prevented so as to improve safety, breakage prevention, durability and reliability. A starting device of a gas internal combustion engine 1 having an air starting device 30 includes a rotation-speed detection unit of the gas internal combustion engine 1, a compressed-air introduction unit 5 for supplying compressed air to each of cylinders according to an order of an ignition timing of the gas internal combustion engine 1, a compressed-air supply unit 3 for supplying the compressed air to the compressed-air introduction unit 5, and a control device 2 including a cumulative rotation-speed setting device 21 whereby an operator can set a threshold value of a cumulative rotation speed optionally, the control device 2 being configured to halt supply of the compressed air by the compressed-air supply unit 3 if a set cumulative rotation speed is achieved on the basis of the rotation speed detected by the rotation-speed detection unit.

Embodiments may provide a starting device for a gas internal combustion engine whereby non-combusted gas accumulating in the gas internal combustion engine and an exhaust channel is discharged before ignition startup of the gas internal combustion engine and abnormal combustion of the gas internal combustion engine is prevented so as to improve safety, breakage prevention, durability and reliability. A starting device of a gas internal combustion engine 1 having an air starting device 30 includes a rotation-speed detection unit of the gas internal combustion engine 1, a compressed-air introduction unit 5 for supplying compressed air to each of cylinders according to an order of an ignition timing of the gas internal combustion engine 1, a compressed-air supply unit 3 for supplying the compressed air to the compressed-air introduction unit 5, and a control device 2 including a cumulative rotation-speed setting device 21 whereby an operator can set a threshold value of a cumulative rotation speed optionally, the control device 2 being configured to halt supply of the compressed air by the compressed-air supply unit 3 if a set cumulative rotation speed is achieved on the basis of the rotation speed detected by the rotation-speed detection unit.

A diode accommodation core, for use in solenoids of starter engines and accommodation of the diodes in these solenoids without thereby affect the structural configuration of the diodes or the structures of starter engines. The diode accommodation core includes a structural body having opening for the accommodation of body of diode, and two contact sides opposite each other, wherein each side is provided with accommodation guide of the respective terminals of the diode, which has a surface portion in which at least one of the terminals is supported and at least partially exposed regarding the surface of the corresponding contact side of structural body, in order to promote electrical contact with at least one adjacent component by pressure.

A diode accommodation core, for use in solenoids of starter engines and accommodation of the diodes in these solenoids without thereby affect the structural configuration of the diodes or the structures of starter engines. The diode accommodation core includes a structural body having opening for the accommodation of body of diode, and two contact sides opposite each other, wherein each side is provided with accommodation guide of the respective terminals of the diode, which has a surface portion in which at least one of the terminals is supported and at least partially exposed regarding the surface of the corresponding contact side of structural body, in order to promote electrical contact with at least one adjacent component by pressure.

A circuit configuration is described, for starting an internal combustion engine, using at least one starter, which includes a starter motor, an engaging relay, a switching relay and a control relay, the control relay being able to be controlled by an ignition switch, the engaging relay being able to be controlled by the control relay and a current path of the starter motor being able to be switched using the switching relay. In order for the starter, for starting an internal combustion engine, to operate more accurately, and thus to achieve a longer service life, the switching relay is able to be controlled as a function of the occurrence of a specified event, at least in the switching-off process. This has the advantage that the switching relay is able to interrupt a current path from the starter motor earlier in time, especially a main current path, so that energizing in the reverse direction is avoided. Consequently, the switching relay is able to release the current path of the starter motor specified in such a way that in the switching-off process, during the disengaging of a starter pinion, pinion bounce is clearly reduced, or even eliminated. In the switching-off process of the starter, a motion of the starter pinion back in the direction towards the ring gear, after the disengagement, is avoided.

A circuit configuration is described, for starting an internal combustion engine, using at least one starter, which includes a starter motor, an engaging relay, a switching relay and a control relay, the control relay being able to be controlled by an ignition switch, the engaging relay being able to be controlled by the control relay and a current path of the starter motor being able to be switched using the switching relay. In order for the starter, for starting an internal combustion engine, to operate more accurately, and thus to achieve a longer service life, the switching relay is able to be controlled as a function of the occurrence of a specified event, at least in the switching-off process. This has the advantage that the switching relay is able to interrupt a current path from the starter motor earlier in time, especially a main current path, so that energizing in the reverse direction is avoided. Consequently, the switching relay is able to release the current path of the starter motor specified in such a way that in the switching-off process, during the disengaging of a starter pinion, pinion bounce is clearly reduced, or even eliminated. In the switching-off process of the starter, a motion of the starter pinion back in the direction towards the ring gear, after the disengagement, is avoided.

A pneumatic starter for a chainsaw having a pedestal that supports a mounting plate. Clamps are used to mount a chainsaw to the mounting plate while brackets are used to connect a pneumatic cylinder having an extending shaft to the mounting plate. A recoil handle fixture receives the pull cord of a chainsaw. The recoil handle fixture is connected to the shaft. When a pneumatic assembly receiving compressed air is operated the shaft is rapidly extended, pulling the pull cord to start the chainsaw.

A pneumatic starter for a chainsaw having a pedestal that supports a mounting plate. Clamps are used to mount a chainsaw to the mounting plate while brackets are used to connect a pneumatic cylinder having an extending shaft to the mounting plate. A recoil handle fixture receives the pull cord of a chainsaw. The recoil handle fixture is connected to the shaft. When a pneumatic assembly receiving compressed air is operated the shaft is rapidly extended, pulling the pull cord to start the chainsaw.

An internal combustion engine includes a cylinder for combusting a mixture of fuel and air therein, and a starting air system configured to provide pressurized starting air to the cylinder and to monitor operability of the starting air system. The starting air system may include a pressurized starting air source, a starting air manifold, a starting air venting valve, and a sensing device. The pressurized starting air source is configured to store pressurized starting air. The starting air manifold is fluidly connected to the pressurized starting air source. The starting air venting valve is fluidly connected to the starting air manifold and configured to vent the starting air system. The sensing device is configured to detect a parameter that measures a condition within the starting air system.

An internal combustion engine includes a cylinder for combusting a mixture of fuel and air therein, and a starting air system configured to provide pressurized starting air to the cylinder and to monitor operability of the starting air system. The starting air system may include a pressurized starting air source, a starting air manifold, a starting air venting valve, and a sensing device. The pressurized starting air source is configured to store pressurized starting air. The starting air manifold is fluidly connected to the pressurized starting air source. The starting air venting valve is fluidly connected to the starting air manifold and configured to vent the starting air system. The sensing device is configured to detect a parameter that measures a condition within the starting air system.