Abstract: A cleaning device assembly for a drum of a compactor machine is provided. The cleaning device assembly includes a support member connected to a frame of the compactor machine. The cleaning device assembly further includes a linkage member having a first end and a second end. The linkage member pivotally connected to the support member at the first end. The cleaning device assembly further includes a mounting plate pivotally connected to the linkage member at the second end thereof. The cleaning device assembly further includes a cleaning device mounted to the mounting plate and the cleaning device extends along a length of the drum.

Abstract: A paver including a screed and a hydraulic actuator coupled to the screed. The hydraulic actuator is configured to raise the screed to a transport position by pressurizing a raise end of the hydraulic actuator. An accumulator is selectively connected to the hydraulic actuator. A control valve configured to switch the screed in the transport position between a non-cushioned state and a cushioned state by connecting the accumulator to the raise end of the hydraulic actuator in the cushioned state. The hydraulic pressure of the accumulator is equalized to a hydraulic pressure of the hydraulic actuator before the control valve switches the screed from the non-cushioned state to the cushioned state.

Abstract: A method includes receiving a plurality of design files at a computer-based system, wherein each of the design files is indicative of a respective structural design, a structural value associated with the respective structural design, and a source identifier associated with a designer of the respective structural design; causing a graphical representation of at least a portion of the structural designs to be displayed to a user; receiving a user selection of a first structural design of the displayed structural designs; generating an additive manufacturing file indicative of the first structural design in a predefined format, wherein the predefined format enables the processing of the additive manufacturing file into a physical structure through an additive manufacturing process; transmitting the selected first structural design in the predefined format; and determining, by the computer based system, a royalty value associated with the selected first structural design based at least on the structural value, t

Abstract: A method for implementing and canceling an automatic operation of a body of a machine includes receiving a selection of an automatic setting according to a first operation of a hoist mode actuator, determining an activation state of the automatic setting, causing an automatic operation of an engine of the machine to adjust an idle level of the engine and an automatic operation of a hoist system to move the body in a first direction to a first position. The method includes canceling the automatic operation of the engine and the automatic operation of the hoist system and controlling the idle level of the engine according to operations of a throttle, the hoist system to move the body according to the idle level of the engine and respective directions of the second operation the hoist mode actuator and subsequent operations of the hoist mode actuator.

Abstract: A shroud for a work tool is disclosed. The shroud may have a tip portion. The tip portion may have a tip extending from a shroud proximal end to a tip end disposed between the shroud proximal end and a shroud distal end. The tip portion may further have an upper leg extending from the tip end to an upper leg distal end. The tip portion may also have a lower leg extending from the tip end to a lower leg distal end. The lower leg may be spaced apart from the upper leg to form an opening between the upper leg and the lower leg. The shroud may have an attachment portion attached to the upper leg. The attachment portion may extend from adjacent the tip end to the shroud distal end.

Abstract: A shroud retention system for a work tool is disclosed. The shroud retention system may have an adapter attached to the work tool. The shroud retention system may further have a spring assembly attached to the adapter. The shroud retention system may also have a shroud, which may have a channel configured to slidably receive the adapter and the spring assembly. The channel may have a retainer slot. The shroud retention system may have a retainer plate disposed in the retainer slot. The retainer plate may be movable into a locked position by the spring assembly.

Abstract: A method of remanufacturing a surface of a machine component is provided. The method includes attaching the machine component to a support fixture. The method also includes moving a surface evaluating device relative to the surface of the machine component. The method further includes generating a set of data points using the surface evaluating device. The method includes communicating the set of data points generated by the surface evaluating device to a control module. The method also includes determining a depth of wear on the surface, based on the set of data points received by the control module. The method further includes determining an amount of material to be removed from the surface, based on the depth of wear. The method includes performing a machining operation on the surface for removing the determined amount of material.

Abstract: A brake assembly includes a housing, a brake element configured to be operatively associated with an axle for resisting rotation of the axle, and a piston configured to be selectively moved into and out of braking engagement with the brake element. The brake assembly further includes a slack adjustment mechanism for limiting movement of the piston when the piston is moved out of braking engagement with the brake element. The slack adjustment mechanism includes a shuttle configured to be engaged by the piston, and a plurality of stop elements carried by the shuttle and configured to be moved off the shuttle into a well of the housing. Movement of the piston is stopped when the shuttle engages an end wall of the well or one of the stop elements in the well.

Abstract: An impact system for a hydraulic hammer is disclosed. The impact system may include a piston, a sleeve disposed co-axial with the piston, and an accumulator membrane disposed external to the sleeve. A first seal may be located at an end of the sleeve, and configured to connect the sleeve to the piston. The accumulator membrane may have an extension configured to engage a recess in the sleeve.

Abstract: A cementitious composition may include polyvinyl alcohol, high alumina cement, water, a metallic coagent, a peroxide crosslinking initiator, and an organic acid retardant. A molded article may be manufactured from the cementitious composition by preparing a hydrogel pre-polymer blend of saponified polyvinyl alcohol acetate (PVAA) with greater than or equal to approximately 85% saponified PVAA, and water, mixing the hydrogel pre-polymer blend with high alumina cement (HAC) using a high shear mixing process, mixing in a metallic coagent and a peroxide crosslinking initiator, mixing in an organic acid retardant, and hot press molding the mixture.

Abstract: An inexpensive engine assist device capable of performing stable energy regeneration from an accumulator and a working machine on which the engine assist device is mounted are provided. A variable capacity type main pump and a variable capacity type assist pump are directly connected to an engine. A return pressure oil flowing out from a fluid pressure actuator is temporarily accumulated by a sub-accumulator and is supplied to an inlet of the assist pump, and the assist pump pressurizes the return fluid pressure oil and supplies the return fluid pressure oil to a main accumulator. A controller calculates and controls an assist pump swash plate angle, and assist starting torque or charge starting torque, and introduces a pressure-accumulated fluid discharged from the main accumulator to the inlet of the assist pump or introduces a pressurized fluid discharged from an outlet of the assist pump into the main accumulator.

Abstract: A track assembly may have a chain assembly including a plurality of track links, a traction assembly including track shoes secured to the plurality of track links, a drive sprocket, an idler assembly including an idler and a mount, and a roller assembly including a plurality of rollers and a roller frame. A wear monitoring system may have a wear sensor configured to generate a signal indicative of a current position of a first component of the track assembly, and a controller in communication with the at least one wear sensor, the controller being configured to determine an amount of wear experienced by the track assembly based on the signal. The first component may be configured such that wear of at least a second component causes the first component to move to the current position from a previous position.

Abstract: An internal combustion engine includes a pre-chamber assembly including a wall having an internal surface opposite an external surface, the internal surface of the wall defining a combustion pre-chamber and at least one orifice extending to an aperture through the external surface of the wall; a block having an internal surface defining a bore therein; a piston disposed within the bore and configured for reciprocal translation within the bore, the piston, the bore, and the external surface of the wall at least partly defining a main combustion chamber, and the combustion pre-chamber being in fluid communication with the main combustion chamber via the at least one orifice; an energy source operatively coupled to the combustion pre-chamber; and an exhaust gas recirculation (EGR) valve fluidly coupled to the combustion pre-chamber and an exhaust conduit of the internal combustion engine.

Abstract: A system for determining the stroke of a hydraulic cylinder is provided. The hydraulic cylinder includes a barrel with a rod that slidably extends therefrom. A fiber optic shape sensing system is positioned to determine the stroke of the rod relative to the barrel. An interrogation module is fixed to a reference frame. A fiber bundle is joined to the interrogation module at a proximal end and a fiber termination at a distal end, which is joined to the connecting end of the rod. A signal conditioning module connected to the interrogation module is configured to compute the location of at least one position of the fiber bundle relative to the reference frame; and provide an output indicative of the stroke of the connecting end relative to the barrel.

Abstract: A disconnect clutch and method of controlling the connection of a parasitic load to an engine disposed on a machine is disclosed. The disconnect clutch may comprise a flywheel assembly, a friction plate and a coupling. The flywheel assembly may include a flywheel having a cavity, a chamber, a piston moveable between a contracted position and an expanded position, a pressure plate, a lever, and a coupling operably connected to the friction plate. The flywheel may include an end plate. The chamber may be defined by the flywheel and the piston. The lever may apply an activation force to the pressure plate when the piston is in the expanded position. The friction plate may be attached to and rotatable with the flywheel assembly when the piston is in the expanded position and generally stationary when the piston is in the contracted position.

Abstract: A track assembly is disclosed for use with a mobile machine. The track assembly may have a plurality of crawler shoes. Each of the plurality of crawler shoes may include a ground engaging surface and first and second pairs of links laterally spaced apart on a side opposite the ground engaging surface. The track assembly may also have a first pin connecting the first pair of links of each of the plurality of crawler shoes to form a first continuous chain, and a second pin connecting the second pair of links of each of the plurality of crawler shoes to form a second continuous chain. The track assembly may further have a drive wheel having dual sprockets configured to simultaneously engage the first and second continuous chains.

Abstract: A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The plug head may include a first hole and a second hole opposite the first hole, each hole extending from the outer surface of the plug head. The anti-rotation component may include a first linear portion and a second linear portion. The first linear portion and second linear portion may both be configured to fixably engage with the hammer assembly.

Abstract: An upper transition assembly is disclosed. The upper transition assembly may have an upper spacer plate extending from a first spacer end to a second spacer end. The upper spacer plate may have a base portion having a first width. The upper spacer plate may also have a projection extending from the base portion. The projection may have a second width smaller than the first width. The upper transition assembly may also have a lower spacer plate extending from adjacent the first spacer end to a first distal end disposed between the first spacer end and the second spacer end. The lower spacer plate may have a third width about equal to the second width.

Abstract: A method for controlling an air-fuel ratio (AFR) in an engine powered by a gaseous fuel having an unknown composition may comprise receiving an assumed gas species composition for the gaseous fuel, and determining an assumed lower heating value (LHV) for the assumed gas species composition. The method may further comprise determining a perceived lower heating value (LHV) for the gaseous fuel based on a perceived gas mass flow and a gas energy flow for the gaseous fuel, and updating the assumed gas species composition until the assumed LHV and the perceived LHV are aligned. The method may further comprise determining a desired AFR and an airflow necessary to provide the desired AFR using the aligned gas species composition and a desired lambda (?), and adjusting an air system controller of the engine to provide the airflow.

Abstract: A method of operating an Exhaust Gas Recirculation (EGR) valve of an engine is provided. The method includes monitoring an operating condition of the engine based at least on a speed of the engine and a load of the engine. The method also includes determining an amount of Carbon Monoxide (CO) in an exhaust from the engine and comparing the amount of CO with a threshold CO value. The method further includes adjusting open loop parameters of the EGR valve based on the comparison during a predetermined operating condition for the engine. The EGR valve is controlled based on the open loop parameters during switching between a closed loop control and an open loop control of the EGR valve.