JPS6216753U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the portion where the double sliding valve type variable bench lily carburetor of the present invention differs in structure from the double variable bench lily carburetor proposed in Utility Application No. 135910/1980; Figure 3 is a sectional view and a view in the direction of the arrow in Figure 1, respectively, and Figure 4 is a longitudinal sectional view of the double sliding valve type variable bench lily carburetor proposed in Utility Application No. 135910/1983. The other parts other than those shown in the drawings are applied as drawings showing the structure of the double sliding valve type variable bench lily carburetor of the present invention. 5 and 6 are drawings showing an example of an unfavorable countermeasure for the problem of the double sliding valve type variable bench lily carburetor proposed in Utility Application No. 135910/1980 shown in FIG. 4. Explanation of symbols, 1... Housing, 2... Main intake passage,
3...Sliding valve chamber, 4...Sliding valve, 5...Secondary valve body, 6...Primary valve body, 6-2...Through hole for taking in bench lily negative pressure, 6-3... Thick wall portion, 7... Connection rod, 8... Spring, 14... Negative pressure chamber, 15...
...atmospheric pressure chamber, 16...diaphragm.

Claims (1)

[Claims for Utility Model Registration] (1) A sliding valve 4 that opens and closes the main intake passage 2 by sliding inside a sliding valve chamber 3 having a rectangular cross section that intersects with the main intake passage 2, 4 and the main intake passage 2, the secondary valve body 5 slides along the downstream inner wall surface 3-1 of the sliding valve chamber 3 in response to a change in negative pressure in the bench lily section formed by the main intake passage 2; The slide valve is biased by a spring 8 against the secondary valve body 5 in the direction of opening the intake passage 2, and manually operated in the direction of closing the main intake passage 2 against the force of the spring 8. It consists of a primary valve body 6 that slides along the upstream inner wall surface 3-2 of the chamber 3, and the upper end of the secondary valve body 5 is configured to respond to the negative pressure of the bench lily. The diaphragm 16 is fixed and the diaphragm 16
Above is a negative pressure chamber 14 to which the bench lily negative pressure is introduced, and below is an atmospheric pressure chamber 15 communicating with the atmosphere.
A double sliding valve type variable bench lily having a through hole 6-2 formed at the lower end of the primary valve body 6 for taking in the bench lily negative pressure leading to the negative pressure chamber 14. In the carburetor, the main intake passage 2
A thick wall portion is formed on the downstream wall of the recess 22 at the lower end of the primary valve body 6, passing through the center line of the slide valve 4 and spaced apart from a plane 26 parallel to the sliding direction of the slide valve 4 in a direction perpendicular to the plane 26. 6-3, and a through hole 6 for introducing the bench lily negative pressure into the lower end surface of the thick portion 6-3.
- Double sliding valve type variable bench lily carburetor with 2 open. (2) The utility model registration claim 2 according to claim 1, wherein one through hole 6-2 opening in the lower end surface of the thick portion 6-3 is arranged on each side of the plane 26. Heavy sliding valve type variable bench lily carburetor.