Abstract: A piston ring set for internal combustion (IC) engine is provided. The IC engine includes a cylinder having a liner and a finish on the liner. A piston having a crown and a set of grooves is disposed in the cylinder. A set of piston rings is disposed in the set of grooves. The piston rings are disposed in order from closest to the crown and include at least a first compression ring having free ends defining a first end gap, a second compression ring having free ends defining a second end gap. A nominal value of the first end gap of the first compression ring is greater than a nominal value of the second end gap of the second compression ring.

Abstract: A method of reducing vapor generation in an LNG fueled vehicle is provided. The LNG fueled vehicle includes an LNG fuel system including an external LNG pump. The method includes a step of predicting if the LNG fueled vehicle will be operated during a first forthcoming time period using a controller. If the LNG fueled vehicle will be operated during the first forthcoming time period, as determined by the first predicting step, the method includes cooling the external LNG pump.

Abstract: A rail conditioning system associated with a locomotive is provided. The locomotive operates on a rail. The rail conditioning system includes a fluid supply tank. The rail conditioning system also includes a first nozzle coupled to the locomotive. The first nozzle is adapted to direct a first beam of fluid received from the fluid supply tank towards a first portion of the rail. The rail conditioning system further includes a second nozzle coupled to the locomotive. The second nozzle is adapted to direct a second beam of fluid received from the fluid supply tank towards a second portion of the rail. The rail conditioning system includes a valve element provided in fluid communication with the first and second nozzles. The rail conditioning system further includes a control module in communication with the valve element.

Abstract: An apparatus for testing installation of a network equipment onboard a locomotive of a consist is disclosed. The apparatus includes a housing and a test network equipment is disposed within the housing. The test network equipment includes a first port to connect with an output port of the locomotive via a Multiple Unit (MU) cable. The apparatus includes a user interface to connect with a second port of the test network equipment. The test network equipment establishes a communication with the user interface based on a predefined attribute of the user interface. Upon establishing the communication between the test network equipment and the user interface, the user interface is configured to identify the network equipment, establish one or more communication routes with the network equipment, and determine a status of installation of the network equipment onboard the locomotive using the one or more communication routes.

Abstract: A rocker arm may comprise a body defining a pivot aperture and include a pad spaced away from the pivot aperture a predetermined distance. The pad may include a peripheral surface and a top surface that defines a blind aperture, forming an intersection therewith, and the top surface may include a plurality of aligning features disposed around the blind aperture.

Abstract: A housing member for enclosing an aftertreatment module of an engine is provided. The housing member includes a base member, a plurality of side members extending from the base member, and a top member coupled to the plurality of side members. The base member, the plurality of side members and the top member are together configured to define an inlet chamber and an outlet chamber. The housing member includes an inlet port defined on at least one of the plurality of side members and configured to communicate with the inlet chamber. The inlet port is coupled to an exhaust conduit of the engine to receive exhaust gas. The housing member includes a plurality of outlet ports defined on the top member and at least one of the plurality of side members. The plurality of outlet ports communicates with the outlet chamber to discharge the exhaust gas from the aftertreatment module.

Abstract: A railcar hatch control system and method for operating railcar hatches of a multi-railcar train is disclosed. A multi-railcar train may have a locomotive and a plurality of railcars having railcar hatches that can be opened and closed. The system and method may include displaying railcar identification information for the railcars on an operator display device, and receiving selections of railcars from an operator that will have a railcar hatch operation performed thereon, such as opening or closing the hatches. The railcar hatch operation is input, and the system and method control the railcar hatch operation being performed only on the selected railcars, and not on the railcars that have not been selected by the operator. The system and method may have operator interfaces devices at an operator station of the train, or at a remote location or on a remote device that communicates wirelessly with the train.

Abstract: A system for maintaining a minimum clearance between a locomotive and a railway infrastructure is provided. The system includes at least one rollable and compressible device configured to be affixed or otherwise provided on a side of a locomotive or portion of a train. Each rollable and compressible device includes bi-directional rolling element and is configured to allow movement of the roller between a non-rolling state and a rolling state and between an uncompressed state and a predetermined maximum compressed state.

Abstract: A compressor inlet recirculation system is disclosed. The compressor inlet recirculation system may have a compressor housing. The compressor inlet recirculation system may also have a compressor impeller disposed within the compressor housing. The compressor inlet recirculation system may further have an inlet flow guide attached to the compressor housing. The inlet flow guide may be configured to direct air to the compressor impeller. The inlet flow guide may have an inlet slot and an outlet slot spaced axially from the inlet slot. The compressor inlet recirculation system may also have an annular air passage extending between the inlet slot and the outlet slot.

Abstract: A monitoring system for a train is provided. The monitoring system includes an image capturing device configured to capture a video feed of a designated area associated with the train. The monitoring system also includes a controller coupled to the image capturing device. The controller is configured to receive the video feed from the image capturing device. The controller is configured to analyze the video feed to determine if a predefined triggering event has occurred. The controller is configured to record and store a predefined length of the video feed based on the determination. The controller is configured to provide a notification of the recorded video feed to a user through a user interface. The controller is configured to allow the user to access at least a portion of the recorded video feed through the notification.

Abstract: A triggering system for a train having a spotter control system is provided. The triggering system includes a position detection system configured to generate a position signal indicative of a position of a rail shop relative to the train. The system also includes a controller coupled to the position detection system, the spotter control system, and an engine of the train. The controller is configured to receive the position signal from the position detection system. The controller is configured to detect if the train is approaching the rail shop based on the position signal. The controller is configured to trigger a shutdown of the engine based on the detection. The controller is configured to trigger an activation of the spotter control system based on the detection.

Abstract: An energy recovery system for a power system is disclosed. The power system includes an engine, a generator driven by the engine, an electrical bus configured to receive electrical power from the generator, an exhaust conduit configured to receive exhaust gases from the engine, and a turbocharger coupled to the exhaust conduit. The energy recovery system includes a bypass conduit, a turbo-generator, and a synchronizer. The bypass conduit is coupled to the exhaust conduit, and facilitates a portion of exhaust gases from the exhaust conduit to bypass the turbocharger. The turbo-generator is coupled to the bypass conduit, and is driven by the portion of exhaust gases bypassing the turbocharger. Further, the synchronizer modulates one or more parameters of electrical power received from the turbo-generator based on one or more parameters of electrical power present on the electrical bus. The synchronizer transmits modulated electrical power to the electrical bus.

Abstract: A control system for remotely configuring a locomotive includes a plurality of operational control devices located on-board the locomotive, the plurality of operational control devices being configured to implement a change to a designated configuration of the locomotive. A controller located on-board the locomotive is configured to activate the plurality of operational control devices to change the designated configuration of the locomotive upon receipt of a configuration command signal. An off-board remote user interface located remotely from the locomotive is configured to receive a single input from a user commanding a change in configuration of the locomotive, the single input being implemented by activation of a single input device on the remote user interface, and selectively send a configuration command signal to the on-board controller to activate the plurality of operational control devices to change the designated configuration of the locomotive.

Abstract: A cryogenic fluid system includes a vessel and a pumping system positioned for submerging within cryogenic fluid within the vessel. The pumping system includes an electric drive structured to move a pumping element within a pumping chamber to pump cryogenic fluid out of the vessel. A cooling jacket forms a heat exchange cavity about the electric drive such that heat is rejected externally of the storage vessel.

Abstract: A submersible pumping system in a machine system includes a pumping element, and a drive mechanism for actuating the pumping element. The drive mechanism has an electromagnetic element with a superconducting state at or below a critical temperature. A temperature control jacket and cooling mechanism are provided to pump heat from a heat exchange cavity to cool the drive mechanism to or below a critical temperature less than an ambient temperature in a cryogenic environment.

Abstract: A cleaning device for a pressure sensor associated with an engine system includes a one-way valve having an inlet side and an outlet side. The outlet side is in selective fluid communication with an inlet of the pressure sensor. The cleaning device also includes a compressed air source in selective fluid communication with the one-way valve. The cleaning device further includes a control module communicably coupled to each of the pressure sensor, the one-way valve, and the compressed air source. The control module is configured to control an operation of the one-way valve and the compressed air source to impart at least one of a long burst of modulated air and a short burst of modulated air on the inlet of the pressure sensor.

Abstract: A valve assembly of a fuel supply system includes a first body defining a first bore, an inlet port to receive fuel into the first bore, and an outlet port. The valve assembly further includes a pneumatic chamber disposed in fluid communication with the first bore. The valve assembly further includes a first piston to move between a first position and a second position. The first piston restricts and allows flow of fuel from the inlet port to the outlet port, in the first position and the second position, respectively. The valve assembly further includes a vent passage located upstream of the pneumatic chamber and configured to receive fuel leaked from a flow path defined between the inlet port and the outlet port. The valve assembly also includes a check valve disposed in the vent passage and configured to selectively vent the fuel entering the vent passage.

Abstract: A visual diagnostic system for a rail vehicle having multiple assets is disclosed. The visual diagnostic system may have a data interface configured to receive a data stream from a wayside unit. The data stream includes values of a plurality of parameters measured made by the wayside unit. The data interface may also be configured to receive geo-information and configuration-information. The system further includes a memory device configured to store the data stream and a controller configured to determine, from the geo-information and the configuration-information, a geographic location of each of the multiple assets. The controller is further configured to determine prognostic information associated with an operational status of each of the multiple assets. The controller may further render for display in a user interface a visual representation of the rail vehicle with the prognostic information for each asset of the rail vehicle.

Abstract: An energy recovery system for an engine system is disclosed. The engine system includes an engine, an exhaust conduit configured to receive exhaust gases discharged from the engine, and a first turbocharger coupled to the exhaust conduit to receive exhaust gases from the engine and provides compressed air to the engine. The energy recovery system includes a bypass conduit, a second turbocharger, and an accumulator. The bypass conduit is coupled to the exhaust conduit upstream of the first turbocharger, and facilitates a portion of exhaust gases from the exhaust conduit to bypass the first turbocharger. The second turbocharger is coupled to the bypass conduit, and is driven by the portion of exhaust gases bypassing the first turbocharger to compress air received from an ambient to a first pressure. The accumulator is in fluid communication with the second turbocharger, and stores air received from the second turbocharger at the first pressure.

Abstract: A rocker arm may comprise a body defining a pivot aperture and include a pad spaced away from the pivot aperture a predetermined distance. The pad may include a peripheral surface and a top surface that defines a blind aperture, forming an intersection therewith, and the top surface may include a plurality of aligning features disposed around the blind aperture.