Abstract:
A variable intake valve apparatus may include a fixing pin, wherein a spring may be connected to an outer peripheral surface of the fixing pin, a driving mode portion configured for compressing the spring such that a protrusion formed at a distal end of the spring may be disposed variably depending on a selected driving mode, and a body portion engaged with the driving mode portion and configured for controlling an opening point in time of the intake valve apparatus depending on negative pressure of air on the selected driving mode.
Abstract:
An auxiliary intake valve device is provided that includes a valve housing that is disposed at an air cleaner cover, has an inlet port and an outlet port, and has a plurality of inlet apertures at the inlet port. In addition, a fixing bracket is disposed within the valve housing and an elastic member is disposed on the fixing bracket. A plurality of valves are supported by the elastic member and are configured to selectively close the inlet apertures and open the inlet apertures when negative pressure is generated at the outlet port.
Abstract:
A variable intake device of an engine may include an auxiliary intake duct that may be disposed with one end thereof inserted inside an air cleaner and sucks air, and a magnetic variable valve that may be disposed at the one end of the auxiliary intake duct positioned inside the air cleaner to selectively open or close the auxiliary intake duct so that as intake negative pressure increases, an open angle of the magnetic variable valve increases.