US 4,391,261 A · Carburetor actuating system for V-engines

Abstract

A carburetor actuating system for two carburetors (5a, 5b) in V-shaped space (4) between two cylinders (2a, 2b) of a V-engine such that drafting directions of the respective carburetors are opposite to each other. One carburetor (5b) is controlled by a cable (16b) attached to an actuating arm (15b) connected to the valve stem (14b) protruding to the outside of the one carburetor (5b), i.e., in a direction away from the carburetor. The other carburetor (5a) is controlled by a driven arm (21a) connected to the valve stem (14a) protruding toward the carburetor (5b). The driven arm is actuated by a drive arm (21b) connected to the valve stem of the one carburetor (5a) through links (22a, 22b) hinged by a pin (24) constrained by a guide groove (28) to motion along a perpendicular bisector of a line passing through the axes of the valve stems (14a, 14b). The link (22a) for the driven arm (21a) is connected to it through a lever arm (21c) loosely connected to the valve stem (14a) adjusted in position relative to the driven arm by bolt (21e) to adjust the phase of the other carburetor (5a) relative to the one carburetor (5b) controlled by the cable (16b).

Claims8

Dependent claims

A dual carburetor system for a V-engine utilizing two carburetors, each having a throttle valve stem protruding through at least one side, the protruding valve stem of one having connected to it a drive arm, and the protruding valve stem of the other having connected to it a driven arm, characterized in that the carburetors are positioned side by side in the V-shaped space between two engine cylinders with said valve stems having said drive arm and driven arm fixed thereto protruding toward each other;

said drive arm being connected to said driven arm by means of two connecting links hinged to the respective drive and driven arms at one end of each and hinged to each other at their other ends;
and a slot in a plate between the carburetors to constrain motion of said hinge between the links along a perpendicular bisector of a line passing through the axes of the protruding valve stems of the two carburetors.

In a dual carburetor for a V-engine having at least two cylinders arranged in the shape of a letter "V", in which a first caburetor communicating with one of the cylinders and a second carburetor communicating with the other cylinder are arranged side by side between the two cylinders such that their drafting directions are opposite to each other, the combination comprising

throttle valves turning in opposite directions in said first and second carburetors on valve stems protruding toward each other from said first and second carburetors,
a drive arm fixed to the protruding valve stem of said first carburetor,
a driven arm fixed to the protruding valve stem of said second carburetor, and
a linkage connecting said drive arm to said driven arm, said linkage being comprised of a link connected to said drive arm, a link connected to said driven arm, a pin hinging the free ends of said links together, and means for constraining the hinged ends of said links to motion along a fixed path, whereby opening the throttle valve of said first carburetor will cause the throttle valve of said second carburetor to open correspondingly.

1 more element

Dependencies are inferred from the claim text.

Carburetor actuating system for V-engines

Life of this patent

Carburetor actuating system for V-engines

Life of this patent

Abstract

Claims8