Reference Modification no.
- 3 -
Page
38
Date
1999 01 01
Main
914 F
01476
9.2.5) BING constant depression carburetor type 64-3
See Pic. 15/16 and 17.
The BING constant depression carburetor type 64-3 is a cross-draft butterfly
valve carburetor with variable venturi, double float system arranged centrally
below the venturi, and a rotary valve type starting carburetor. It features a
carburetor piston W which is suspended from a roller diaphragm E and
projects into the venturi. It changes the smallest cross section (venturi) of the
venturi as a function of the vacuum at this point. By actuation of the throttle
valve Q the depression is influenced and the carburetor piston is moved. The
throttle valve diameter is 36 mm (1.42 in.).
When the fuel has reached a specified level in the float chamber, then the
floats close the needle valve R via the float bracket thus preventing any
further supply of fuel.
14
13
11
9
16
4
15
8
10
12
1
3
6
7
5
2
Pic. 15
02931
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