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AssigneeInternational Engine Intellectual Property Company, LLC
InventorsKenneth R. Seymour, II, Sidi Ould Sadfa, Ning Lei, James H. Yager, Xilin Yang, Kalyan Singh Bagga, W. Bryan Snyder
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A mechanical oscillator for attenuating pressure waves formed in a rail having a volume of fluid therein includes a rigid enclosed fluid cavity having a selected volume, the volume communicating with the rail actuating fluid though an orifice having a select volume for containing actuating fluid, the orifice having an aperture in fluid communication with the actuating fluid selected such that when an pressure wave impinges on the aperture of the orifice, the motion of the actuating fluid in the volume of the orifice is set to vibrating, the vibrating acting to excite the actuating fluid within the enclosed volume, a resulting amplified motion of the actuating fluid in the orifice, due to phase cancellation between the actuating fluid in the volume of the orifice and the actuating fluid volume in the enclosed cavity, causing energy absorption of the pressure wave due to frictional drag in and around the orifice. An pressure wave attenuator and a method of attenuation are also included.
A mechanical oscillator for attenuating pressure waves formed in a fuel system actuating fluid rail having first and second ends and a volume of fluid in a fluid passageway therein, comprising a rigid enclosed fuel system fluid cavity defining at least a portion of a sphere and having a selected volume, the volume communicating with the rail actuating fluid passageway though an orifice having a select volume for containing actuating fluid, the orifice having an aperture in fluid communication with the actuating fluid selected such that when an pressure wave impinges on the aperture of the orifice, the motion of the actuating fluid in the volume of the orifice is set to vibrating, the vibrating acting to excite the actuating fluid within the enclosed volume, a resulting amplified motion of the actuating fluid in the orifice, due to phase cancellation between the actuating fluid in the volume of the orifice and the actuating fluid volume in the enclosed cavity, causing energy absorption of the pressure wave due to frictional drag in and around the orifice.
An actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, comprising:
An actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, comprising:
A pressure wave attenuator for use with an actuator rail assembly, the actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, comprising:
A pressure wave attenuator for use with an actuator rail assembly, the actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, comprising:
Dependencies are inferred from the claim text.