International Engine Intellectual Property Company, LLC

W Bryan Snyder

Kenneth R Seymour, Ii

Ning Lei

Xilin Yang

James H Yager

Sidi Ould Sadfa

Kalyan Singh Bagga

Robert Z Olszewski

Martin R Zielke

A fluid passage intersection () within a component () includes a supply passage () formed in the component (), a cavity () in fluid communication with the supply passage (), and at least one outlet passage () formed in the component () that is in fluid communication with the cavity ().

Engine fluid passage intersection and method

A crankcase () for an engine includes a first bank () of cylinders that has a plurality of cylinder bores () formed therein, and a second bank () of cylinders that includes an additional plurality of cylinder bores (). The second bank () is at an angle with respect to the first bank (). A valley structure () is located between the first bank () and the second bank (). A gallery () is located between the first bank (), the second bank (), and the valley structure (). The gallery () has at least one rear opening () that fluidly connects the gallery () to a rear portion () of the crankcase. At least one front opening () fluidly connects the gallery () to a front portion () of the crankcase (). At least one breather opening () fluidly connects the gallery () to an outer valley surface ().

Crankcase for an internal combustion engine

A component () for an internal combustion engine includes a plurality of as-cast features (e.g.) formed thereon, and a plurality of machined features (e.g.). The component () also includes at least one witness mark (), the witness mark () including a cavity () surrounded by a first lateral surface (), a first inclined surface (), a second inclined surface (), and a valley surface (). The at least one witness mark () is formed during a casting operation, and is used to locate the component () on a fixture (). The plurality of machined features () do not encroach onto an area of the at least one witness mark (). The first inclined surface () and the second inclined surface () are at an angle (&#x3b1;) with respect to each other.

Engine cast component having witness marks and method of machining same

An actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector includes an elongate fluid passageway () being defined in a rail (). A fluid inlet port () is in fluid communication with the fluid passageway (), the inlet port being fluidly couplable to a source of actuating fluid under pressure. A respective fluid outlet port is associated with each respective fuel injector and being fluidly couplable thereto for conveying actuating fluid to the respective fuel injector and at least one fluid cavity () having at least one throttling orifice (), the orifice effecting fluid communication between the fluid cavity () and the fluid passageway (). An acoustic wave attenuator and a method of attenuation are also included.

Acoustic wave attenuator for a rail

An actuator rail assembly for conveying an actuating fluid under pressure to at least one fuel injector, include an elongate fluid passageway being defined in a rail. A fluid inlet port is in fluid communication with the fluid passageway, the inlet port being fluidly couplable to a source of actuating fluid under pressure. A respective fluid outlet port is associated with each respective fuel injector and being fluidly couplable thereto for conveying actuating fluid to the respective fuel injector; and at least one fluid cavity having at least one throttling orifice, the orifice effecting fluid communication between the fluid cavity and the fluid passageway. An acoustic wave attenuator and a method of attenuation are also included.

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.

Growing community of inventors

Westland, MI, United States of America

W Bryan Snyder