Sikorsky Aircraft Corporation

Jacobs Vehicle Systems, Inc.

Jacobs Vehicle Svstems, Inc.

Eric James Hodgkinson

Justin D Baltrucki

G Michael Gron, Jr

Robb Janak

Timothy P Neal

Bruce A Swanbon

Gabriel Scott Roberts

Matei Alexandru

Dong Yang

Jacob Moore

Bertrand J Howard

David M Lutian

Steven Benn

Dominick Guarna

Control of engine shutdown of an internal combustion engine comprising a plurality of cylinders and, for each of the plurality of cylinders, a hydraulically controlled lost motion component operatively connected to an engine valve corresponding to the cylinder, is achieved when an engine controller determines that shutdown of the internal combustion engine has been requested. Responsive to the request for shutdown, the engine controller initiates or continues cylinder deactivation operation for each of at least one cylinder of the plurality of cylinders. The initiation or continuation of the cylinder deactivation operation for each of the at least one cylinder comprises, for an input to the hydraulically controlled lost motion component for each of at least one engine valve corresponding to the cylinder, operating the input to provide the cylinder deactivation operation for a duration at least long enough to complete shutdown of the internal combustion engine.

Shutdown control of internal combustion engine comprising lost motion component

Valve bridge systems include constraints and guides for managing bridge jump and other uncontrolled valve bridge motion during engine operation. Constraints may include an e-foot collar, an extended portion on the bridge, and a bridge brake pin. Guides may include valve stem tip lead-in chamfers surrounding the valve bridge valve pockets as well as a deflection surface on the bridge extended portion. Methods of configuring valve bridges may include configuring the valve step tip lead-in chamfers based on worst-case positions of the valve bridge defined by one or more or a combination of the constraints provided by the e-foot collar, extended portion and brake pin.

Valve bridge constraints and guides and related methods

A valve actuation system comprising a valve actuation motion source configured to provide a main event valve actuation motion to at least one engine valve via a main motion load path that comprises at least one valve train component. The valve actuation system further includes a lost motion component arranged within a first valve train component in the main motion load path, the lost motion component being controllable to operate in a motion conveying state or a motion absorbing state. The valve actuation system also comprises a high lift transfer component arranged in the main motion load path, with the high lift transfer component being configured to permit the main motion load path to convey at least a high lift portion of the main event valve actuation motion when the lost motion component is in the motion absorbing state.

Valve actuation system comprising lost motion and high lift transfer components in a main motion load path

A system for controlling actuation of an engine valve comprises a pivot and a torsion spring having first and second legs operatively connected to the pivot. A lever arm is adjustably affixed to and extending away from the pivot, and is further rotatable about a pivot axis of the pivot between a retracted position and an extended position and vice versa relative to a motion conveying component. Furthermore, a housing is provided having a pivot bore formed therein with the pivot rotatably disposed in the pivot bore. The housing further comprises a first and second openings intersecting with the pivot bore such that the first and second legs extend out of the first opening and the lever arm extends out of the second opening. When a first force is applied by the motion conveying component to the lever arm, such first force maintains the lever arm in the extended position.

Rotating actuator system for controlling valve actuation in an internal combustion engine

A fluid distribution assembly for distributing a fluid, the fluid distribution assembly includes an inlet housing including a first conduit and a bypass conduit; a chip detector cavity in fluid communication with the first conduit such that the fluid can pass through the first conduit into the chip detector cavity; and an outlet housing in fluid communication with the chip detector cavity and the bypass conduit such that the fluid can pass into the outlet housing through the chip detector cavity and/or the bypass conduit.

Fluid distribution assembly having anti-clog inlet housing

A fluid distribution assembly for distributing a fluid includes a first inlet housing; an outlet housing fluidly coupled to the first inlet housing; and a second inlet housing fluidly coupled to the outlet housing; the second inlet housing having a first end and a second end, the second end coupled to the outlet housing at a stagnation dam, the stagnation dam controlling direction of fluid flow through the second inlet housing in response to velocity of fluid flow in the outlet housing.

Anti-clog lubricant distribution assembly

A contaminant detection system for use in a fluid distribution system includes a first detector assembly including an inlet housing and detector screen through which fluid in the fluid distribution system passes and a first sensor to detect a first type of contaminant caught in the detector screen; and a second detector assembly including a second sensor which activates when the inlet housing or detector screen is clogged to detect whether the fluid contains a second type of contaminant when the first sensor does not detect the first type of contaminant.

Growing community of inventors

New Hartford, CT, United States of America

Eric James Hodgkinson