JPH0625523U - Reed valve device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the intake efficiency of fuel gas by improving the structure of the reed valve body. A reed valve device used for an intake system to a crank chamber of a two-cycle engine, wherein a reed valve 1 for opening and closing the outlet 6 is provided in a valve body 3 having a fluid outlet 6 of the reed valve device, and this reed. A reed valve device having a stopper 2 that regulates the valve opening of the valve 1 is characterized in that a leak prevention plate 5 is provided on a side surface of a valve body 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reed valve device used in an intake system for a crank chamber of a two-cycle engine.

[0002]

[Prior art]

 Until now, reed valve devices have fixed stoppers on the downstream surface of the valve body in order to regulate the opening of the reed valve. It is fixed to the valve body together with the valve, and is formed by curving outward from the fixed end to the free end. Therefore, when the fuel gas passes through the reed valve, since the reed valve is a flat plate, the fuel gas is scattered on the surface of the reed valve in the lateral direction of the valve, which hinders the improvement of the intake efficiency.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above points and has an object to improve the structure of the valve body to improve the suction efficiency of fuel gas.

[0004]

[Means for solving the problem]

 In order to achieve the above object, a reed valve device used for an intake system to a crank chamber of a two-cycle engine, wherein a reed valve for opening and closing the outlet is provided in a valve body having a fluid outlet of the reed valve device, In a reed valve device having a stopper that regulates the valve opening of the reed valve, a leak prevention plate is provided on the side surface of the valve body.

[0005]

[Action]

 With this configuration, the fuel gas that pushes the reed valve open and flows into the crank chamber flows to the free end side along the surface of the reed valve that is obliquely arranged, and the flow of the fuel gas from the valve body It is guided into the crank chamber without leaking sideways by the leakage prevention plate provided on the side surface. Therefore, the suction efficiency is increased and the engine output is improved.

[0006]

【Example】

 An embodiment of the present invention will be described below. FIG. 1 is a perspective view of a product of the present invention, in which a reed valve 1 is fixed to a valve body 3 together with a stopper 2 with screws 4. Leak prevention plates 5 are provided vertically on both sides of the valve body 3. Further, in order to make the flow of the fuel gas smoother, it may be possible to angle the leak prevention plate 5 in relation to the intake system passage. FIG. 3 is a front view of a part of the reed valve according to an embodiment of the present invention when it is operated. In FIG. 3, the shape of the valve body 3 provided with the fluid outlet 6 and the reed valve 1 is the same as the conventional one. At the time of engine intake, the fuel gas that pushes open the reed valve 1 and flows in flows along the reed valve 1 that is obliquely arranged, and immediately after passing through the outlet 6, it leaks to both sides. The leakage prevention plate 5 provided on the side surface of the nozzle 3 makes it flow straightly, is focused, and is introduced into the crank chamber.

[0007]

[Effect of device]

 As described above, the efficiency of sucking the fuel gas into the crank chamber is increased and the engine output is improved. Therefore, fuel efficiency is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a partial vertical sectional front view of a conventional reed valve during operation.

FIG. 3 is a partially longitudinal front view of the reed valve according to the embodiment of the present invention during operation.

[Explanation of symbols]

 1 Reed valve 2 Stopper 3 Valve body 4 Screw 5 Leak prevention plate 6 Outlet

Claims (1)

[Scope of utility model registration request] 1. A reed valve device for use in an intake system for a crank chamber of a two-cycle engine, comprising: a reed valve device having a fluid outlet of the reed valve device; a reed valve for opening and closing the outlet; A reed valve device having a stopper for restricting a valve opening, wherein a leak prevention plate is provided on a side surface of a valve body.