Cage structure controls engine variable valves

Abstract

The invention discloses a cage-like structure for controlling an engine valve. The cage-like structure comprises a cage ring I and a cage ring II, wherein the cage ring I and the cage ring II are fixed through a transmission rod I and a transmission rod II, and are respectively positioned at the two ends of the transmission rod I and the transmission rod II; a control shaft I and a control shaft II are arranged on the ring inner sides of the cage ring I and the cage ring II; the two ends of an execution shaft are connected with the cage ring I and the cage ring II; cams I are arranged on the control shaft I; cams II are arranged on the control shaft II; and cams III are arranged on the execution shaft. According to the invention, the cage-like structure controls the rotation directions and rotation speeds of the control shafts to drive the relative cams on the control shafts to perform directional rotation; the cams of the control shafts rotate to push the transmission rods on the cage rings to rise, fall and rotate by relative angles; the transmission rods rise and fall by relative angles to drive the integral cage-like structure to rotate to drive the execution shaft to swing; the execution shaft drives the cams on the execution shaft to swing by relative angles, the trigger control of opening and closing of left and right valves is achieved, and the opening, closing and lifting range of the engine valve is achieved; and the cage-like structure has the characteristics that the structure is simple, the control is convenient, the coordination is high, and the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of controlling variable valves of engines, and in particular relates to a cage structure for controlling variable valves of gas engines. Background technique [0002] At present, automobiles at home and abroad usually use overhead camshaft (OHC) or bottom camshaft (OHV) to control the opening and closing of the valve and then control the movement of the piston, and finally realize the work of the engine. For the bottom camshaft, if the speed is too high, the ejector rod will be deformed and broken. Therefore, this method is mostly used for engines with large displacement, low speed and high torque output. For the overhead camshaft, the ejector rod can be omitted to simplify the transmission mechanism from the camshaft to the valve, which is more suitable for the power state of the engine at high speed, and the overhead camshaft is relatively widely used. There are still some technical problems in the existi...

AI Technical Summary

Problems solved by technology

For the existing valve control technology, there are still some technical problems, such as complex structure, poor precision, complex control and poor coordination, etc.

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