Controlling motion of a moveable part

摘要

For controlling motion of a movable part, a device comprises a first chamber and a second chamber in fluid communication with each other via a variable orifice that is responsive to pressure within the first chamber. Movement of the movable part is thereby at least partially controlled by flow of a fluid from the first chamber to the second chamber via the variable orifice. An increase in pressure in the first chamber may cause an increase in orifice area, whereas a decrease in pressure may cause a decrease in the orifice area. Pressure-dependent elements that change geometries and/or the pressure-based opening/closing of one or more bypass channels may be used for this purpose. Where bypass channels are used, a valve may be opened/closed based on an operating parameter of a system in which the movable part is a component. Such a system may comprise an internal combustion engine.

主权项

1. A device for controlling motion of a movable part, the movable part being a component of a system, the device comprising:
a first chamber configured to be operatively connected to the movable part; a second chamber; and a variable orifice providing fluid communication between the first chamber and the second chamber, an orifice area of the variable orifice being responsive to pressure within the first chamber, wherein motion of the movable part is at least partially controlled by flow of a fluid from the first chamber to the second chamber through the variable orifice.