Abstract: Provided is a two-stroke internal combustion engine, including: a fuel injection valve configured to supply a fuel to a crank chamber; an intake passage configured to allow only air to be sucked thereinto under a negative pressure generated when a piston is actuated; and a scavenging passage that allows communication between the crank chamber and a combustion chamber. The intake passage is branched into a first intake passage and a second intake passage. The first intake passage communicates with the crank chamber. The second intake passage communicates with the scavenging passage. The fuel injection valve is configured to inject the fuel toward at least one of the first intake passage or the crank chamber. Further, air stagnant in the scavenging passage at end of air suction serves as leading air to contribute to scavenging.

Abstract: Provided is a two-stroke internal combustion engine, including: a fuel injection valve configured to supply a fuel to a crank chamber; an intake passage configured to allow only air to be sucked thereinto under a negative pressure generated when a piston is actuated; and a scavenging passage that allows communication between the crank chamber and a combustion chamber. The intake passage is branched into a first intake passage and a second intake passage. The first intake passage communicates with the crank chamber. The second intake passage communicates with the scavenging passage. The fuel injection valve is configured to inject the fuel toward at least one of the first intake passage or the crank chamber. Further, air stagnant in the scavenging passage at end of air suction serves as leading air to contribute to scavenging.

Abstract: PROBLEM: To provide a retaining device for which the magnitude of resistance when an engaging protrusion moves between elastic pieces can be adjusted. SOLUTION: The retaining device 4 is provided with: a receiving member 5 that is attached to a main body 1, and an engagement member 6 that is attached to a movable body 2. The receiving member 5 has: a base part 10 attached to the main body 1, a first elastic piece 11 supported by the base part 10, and a second elastic piece 12 supported by the base part 10. The engagement member 6 has an engaging protrusion 8 that passes between the first elastic piece 11 and the second elastic piece 12 and is retained at a retaining position P. An interval between the first elastic piece 11 and the second elastic piece 12 becomes narrower than the engaging protrusion 8 at a more forward side than the retaining position P. The first elastic piece 11 bends more easily than the second elastic piece 12 at a more forward side than the retaining position P.

Abstract: Provided is a sliding door closer set which makes it possible to adjust the position of a trigger arranged inside a door pocket from outside of the door pocket. A sliding door closer set comprises a rail (4), a closer (6) hanging a sliding door (1) and being capable of moving along the rail (4), and a trigger (8) arranged inside the door pocket (2), wherein the sliding door (1) is pulled into the door pocket (2) as a result of engagement between the trigger (8) and the closer (6), which has moved to a predetermined position on the rail (4). The trigger (8) arranged inside the door pocket (2) is integrally connected to a trigger integrated plate (10). The trigger integrated plate (10) is mounted to the rail (4) outside the door pocket (2).

Abstract: To improve responsiveness of fuel supply control, a rotary carburetor 100 has a nozzle 8 including a fuel discharge port 8a and a needle 10 disposed coaxially with the nozzle 8 and disposed with a portion inserted into the nozzle 8. The needle 10 can be displaced relative to the nozzle 8 to change an effective area of the fuel discharge port 8a. The rotary carburetor 100 has an electric motor 14 for displacing the needle 10 along an axis, and a drive mechanism component 12 interposed between the electric motor 14 and the needle 10 and converting a rotational movement of the electric motor into a linear movement.

Abstract: To optimize fuel supply of an engine with a carburetor during engine operation, a throttle opening degree detection sensor detecting a throttle opening degree and a control unit controlling a valve body variably controlling an opening degree of a fuel discharge part or a fuel supply passage based on a map are included. The map includes a plurality of sections divided based on the throttle opening degree and an opening degree of the valve body set for each section. The opening degree of the valve body set for each section is the opening degree of the valve body at which the engine rotation speed is highest in each section. The control unit controls an electric actuator driving the valve body to achieve the opening degree of the valve body set in a section to which the throttle opening degree detected by the throttle opening degree detection sensor belongs out of the plurality of sections.

Abstract: PROBLEM: To provide a retaining device for which the magnitude of resistance when an engaging protrusion moves between elastic pieces can be adjusted. SOLUTION: The retaining device 4 is provided with: a receiving member 5 that is attached to a main body 1, and an engagement member 6 that is attached to a movable body 2. The receiving member 5 has: a base part 10 attached to the main body 1, a first elastic piece 11 supported by the base part 10, and a second elastic piece 12 supported by the base part 10. The engagement member 6 has an engaging protrusion 8 that passes between the first elastic piece 11 and the second elastic piece 12 and is retained at a retaining position P. An interval between the first elastic piece 11 and the second elastic piece 12 becomes narrower than the engaging protrusion 8 at a more forward side than the retaining position P. The first elastic piece 11 bends more easily than the second elastic piece 12 at a more forward side than the retaining position P.

Abstract: To improve responsiveness of fuel supply control, a rotary carburetor 100 has a nozzle 8 including a fuel discharge port 8a and a needle 10 disposed coaxially with the nozzle 8 and disposed with a portion inserted into the nozzle 8. The needle 10 can be displaced relative to the nozzle 8 to change an effective area of the fuel discharge port 8a. The rotary carburetor 100 has an electric motor 14 for displacing the needle 10 along an axis, and a drive mechanism component 12 interposed between the electric motor 14 and the needle 10 and converting a rotational movement of the electric motor into a linear movement.

Abstract: To improve responsiveness of fuel supply control, a rotary carburetor 100 has a nozzle 8 including a fuel discharge port 8a and a needle 10 disposed coaxially with the nozzle 8 and disposed with a portion inserted into the nozzle 8. The needle 10 can be displaced relative to the nozzle 8 to change an effective area of the fuel discharge port 8a. The rotary carburetor 100 has an electric motor 14 for displacing the needle 10 along an axis, and a drive mechanism component 12 interposed between the electric motor 14 and the needle 10 and converting a rotational movement of the electric motor into a linear movement.

Abstract: To optimize fuel supply of an engine with a carburetor during engine operation, a throttle opening degree detection sensor detecting a throttle opening degree and a control unit controlling a valve body variably controlling an opening degree of a fuel discharge part or a fuel supply passage based on a map are included. The map includes a plurality of sections divided based on the throttle opening degree and an opening degree of the valve body set for each section. The opening degree of the valve body set for each section is the opening degree of the valve body at which the engine rotation speed is highest in each section. The control unit controls an electric actuator driving the valve body to achieve the opening degree of the valve body set in a section to which the throttle opening degree detected by the throttle opening degree detection sensor belongs out of the plurality of sections.

Abstract: To improve responsiveness of fuel supply control, a rotary carburetor 100 has a nozzle 8 including a fuel discharge port 8a and a needle 10 disposed coaxially with the nozzle 8 and disposed with a portion inserted into the nozzle 8. The needle 10 can be displaced relative to the nozzle 8 to change an effective area of the fuel discharge port 8a. The rotary carburetor 100 has an electric motor 14 for displacing the needle 10 along an axis, and a drive mechanism component 12 interposed between the electric motor 14 and the needle 10 and converting a rotational movement of the electric motor into a linear movement.

Abstract: Provided is a sliding door closer set which makes it possible to adjust the position of a trigger arranged inside a door pocket from outside of the door pocket. A sliding door closer set comprises a rail (4), a closer (6) hanging a sliding door (1) and being capable of moving along the rail (4), and a trigger (8) arranged inside the door pocket (2), wherein the sliding door (1) is pulled into the door pocket (2) as a result of engagement between the trigger (8) and the closer (6), which has moved to a predetermined position on the rail (4). The trigger (8) arranged inside the door pocket (2) is integrally connected to a trigger integrated plate (10). The trigger integrated plate (10) is mounted to the rail (4) outside the door pocket (2).