Jacobs Vehicle Systems, Inc.

Audi Ag

Stanadyne Corporation

David Ferreira

Justin D Baltrucki

Gabriel Scott Roberts

John Mandell

Christopher John Carnevale

Peter Jo

Neenad Wamane

Leon P Janik

Michael J Williams

Glenn Michael Allen

Garrett W Fink

In an internal combustion engine, a linkage is provided between an auxiliary motion source and a main motion load path, such that motions received by the linkage from the auxiliary motion source result in provision of a first force to at least one engine valve and a second force to the main motion load path in a direction toward a main motion source. Where an automatic lash adjuster is associated with the main motion load path, the second force may be selected to aid in the control of lash adjustments made by the automatic lash adjuster. In various embodiments, the linkage may be embodied in an mechanical linkage, whereas in other embodiments, an hydraulic linkage may be employed. The linkage may be incorporated into, or otherwise cooperate, a valve bridge or a rocker arm.

Linkage between an auxiliary motion source and a main motion load path in an internal combustion engine

A combined dedicated braking and EEVO lost motion valve actuation systems for internal combustion engines provide subsystems for braking events and EEVO events on one or more cylinders. Various control strategies may utilize braking and EEVO capabilities to module one or more engine parameters, including aftertreatment temperature and engine load.

Systems and methods for combined engine braking and lost motion exhaust valve opening

A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower body and interacts with a lever to provide a constant contact geometry. The finger follower may be configured as a lost motion device and may include a biasing assembly and a travel limiter. The latch may support the lever in at least one precise position and may support the lever in a second position for partial lost motion, or permit the lever to pivot free of the latch for complete lost motion, as in cylinder deactivation applications.

Finger follower for lobe switching and single source lost motion

Variable-length assemblies, including lost motion assemblies eliminate hydraulic or pneumatic working fluids for operation in internal combustion engine valve trains and may be integrated into valve rocker arm pivots. An example piston and actuating plate are provided with working surfaces that interact when the actuating plate is rotated relative to the piston. The working surfaces include ramped transition portions and may include upper and lower flat portions. A shallow ramp angle prevents counter-rotation of the actuating plate under load. Actuating assemblies include an actuating solenoid includes a plunger that engages and pivots the actuating arm to cause rotation of the actuating plate relative to the piston and changes the state of the lost motion assembly from an 'off' state, where motion may be absorbed, to an 'on' state where the lost motion assembly is rigid and does not absorb motion.

Variable length piston assemblies for engine valve actuation systems

A fuel pressure regulator unit is mounted on a manifold. The fuel pressure regulator unit includes a housing providing a fuel inlet passage, a regulated fuel outlet passage, a sense pressure passage, a recycle passage and a mixed fuel passage. A pressure regulator is provided in the housing and is arranged fluidly between the fuel inlet passage and the regulated fuel outlet passage. The sense passage fluidly interconnects the mixed fuel passage and the pressure regulator. The pressure regulator is configured to regulate the flow of fuel from the fuel inlet passage to regulated fuel passage in response to a pressure from the sense pressure passage. An ejector is arranged within the housing and fluidly between the regulated fuel outlet passage and the mixed fuel passage. An ejector is configured to receive recycled fuel from the recycle passage.

Freeze tolerant fuel cell fuel pressure regulator

Systems for valve actuation in internal combustion engines with a dedicated rocker for actuating the at least one of two or more engine valves in a braking operation may include a biasing component, such as a compression spring, tension spring, spring catch, hydraulic actuator, pneumatic actuator for biasing the dedicated rocker in a biased direction away from the motion source, and a limiting component, such as a physical stop including a set screw or a stop integrated in the biasing component, for limiting the motion of the dedicated rocker in the biased direction. The biasing component and limiting component maintain the dedicated rocker in a controlled state and a positive, neutral position during operation.

Rocker arm control systems

Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.

Lash adjustment in lost motion engine systems

An exemplary fuel cell component includes a plate comprising an electrically conductive material. An electrical connector includes a first portion embedded in the plate. A second portion of the electrical connector extends from the plate. The second portion is configured to make an electrically conductive connection with another device.

Fuel cell component with embedded power connector

A display provides an indication of the remaining useful life of a filter element by providing a visible level of fluid in the display corresponding to the remaining useful life. The fluid level is adjusted by a valve responsive to a pressure differential across the filter element. An increasing pressure differential produces an increased fluid level in the display. The display may be provided with markings indicating that a particular fluid level in the display corresponds to the need to change a filter cartridge containing the filter element.

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Glastonbury, CT, United States of America

David Ferreira