Abstract: The present disclosure is an accumulator that has an oil chamber, a first piston separating a first gas chamber from the oil chamber, a second piston separating a second gas chamber from the oil chamber, and a compressible member positioned between the second piston and a stop. The compressible member is configured to dampen motion of the second piston towards the stop.

Abstract: A mobile machine includes a frame and a set of frame support elements supporting the frame. A set of ground engaging elements is mounted to the frame and movable relative to the wheels to change a depth of engagement of the ground engaging elements with the ground over which the mobile machine travels. At least one actuator drives movement of the set of ground engaging elements relative to the frame. A ground sensor is operably coupled to the mobile machine and configured to provide a ground distance signal. Ground engaging element height adjustment logic is configured to receive the ground distance signal and provide a control output to the at least one actuator to generate a height value of the ground engaging elements relative to ground.

Abstract: Agricultural implements and hydraulic circuits for agricultural implements are disclosed herein. An agricultural implement includes a fluid source, a plurality of fluid demand devices, a delivery control valve, and a priority valve. The fluid source is configured to supply hydraulic fluid. The plurality of fluid demand devices are each configured to receive hydraulic fluid supplied by the fluid source during operation of the agricultural implement. The delivery control valve is fluidly coupled between the fluid source and a first fluid demand device. The delivery control valve is configured to selectively deliver hydraulic fluid supplied by the fluid source to the first fluid demand device during operation of the agricultural implement. The priority valve is fluidly coupled between the delivery control valve and the first fluid demand device.

Abstract: A control system for controlling an implement that is movable between a work mode and a transport mode. The control system includes a source of hydraulic fluid, a first actuator and a second actuator. The first and second actuators are fluidly coupled to the source and disposed parallel to one another. A sensor detects movement of the first and second actuators between their retracted and fully extended positions, and a control valve is disposed in communication with the sensor and in fluid communication with the first and second actuators. As the implement moves to its transport mode, the sensor detects movement of the first and second actuators towards their fully extended positions. The control valve inhibits movement of the first and second actuators before either actuator reaches its fully extended position.

Abstract: One or more techniques and/or systems for application of a supplemental downward force to a ground working implement. A mechanical advantage from a lever arm can be utilized to apply supplemental downforce to a ground working implement. A biasing force can be applied to the lever arm by a spring assembly at various locations. Moving the spring assembly along the lever arm can vary the amount of downward force applied by the lever arm to ground working implement. In some implementations, moving the spring assembly to a different end of the lever arm applies an upward force to a coupled ground working implement.

Abstract: The present disclosure is an accumulator that has an oil chamber, a first piston separating a first gas chamber from the oil chamber, and a second piston separating a second gas chamber from the oil chamber. The first and second piston are independently movable to alter the volume of the oil chamber.

Abstract: Work machines, fertilizer opener assemblies for work machines, and methods of operating work machines are disclosed herein. A work machine includes a chassis, a frame, and a fertilizer opener assembly. The frame is coupled to the chassis for movement relative thereto. The fertilizer opener assembly is coupled to the frame to selectively form trenches in the soil for the deposition of fertilizer. The fertilizer opener assembly includes an actuator that is extendable and retractable to vary a length of the actuator and a cutting implement coupled to the actuator. Operation of the actuator drives movement of the cutting implement between a cutting position, in which the cutting implement makes contact with the soil to form trenches therein, and a transport position, in which the cutting implement is raised above the soil.

Abstract: An agricultural machine includes a main frame, an adjustable frame coupled to the main frame and, a row unit which includes a linking arm coupled to the adjustable frame, and an actuator coupled to the main frame and the adjustable frame. The agricultural machine also includes a controller configured to command the actuator to move to various positions based on signals received from one or more sensors. The one or more sensors are configured to measure one more indicators associated with an actual height of the row unit relative to ground.

Abstract: An agricultural machine includes a main frame, an adjustable frame coupled to the main frame and, a row unit which includes a linking arm coupled to the adjustable frame, and an actuator coupled to the main frame and the adjustable frame. The agricultural machine also includes a controller configured to command the actuator to output various downforces to the row units based on signals received from one or more sensors. The one or more sensors are configured to measure one more indicators associated with an actual height of the row unit relative to ground.

Abstract: A male connector end having a first cylindrical portion having a first diameter, a second cylindrical portion having a second diameter, the second diameter being smaller than the first diameter, and a male transition profile between the first cylindrical portion and the second cylindrical portion. The male transition profile is sized to accommodate both a first female transition profile and a second female transition profile to fluidly couple the male connector end to either one of a first female end having the first female transition profile or a second female end having the second female transition profile.

Abstract: A female fluid adapter assembly that has a receiving end that receives a fluid device, a female quick connect end coupled to the receiving end, and a through hole defined between the receiving end and the female quick connect end to allow fluid to flow therebetween. Wherein, the female quick connect end has a first cylindrical opening having a first diameter, a second cylindrical opening having a second diameter, the second diameter being smaller than the first diameter, a female transition profile defined between the first cylindrical opening and the second cylindrical opening, the female transition profile providing a transition from the first diameter of the first cylindrical opening to the second diameter of the second cylindrical opening. Wherein, the female quick connect end is coupleable to a male quick connect end having a male transition profile, the female transition profile being different from the male transition profile.

Abstract: An implement for traversing a field includes a main frame section and a frame wing section pivotally coupled to the main frame section. The frame wing section includes a wing wheel assembly for supporting the frame wing section. A hydraulic control system includes a pressure source, a control valve fluidly coupled with the pressure source, and an actuator assembly fluidly coupled to the control valve. The implement further includes a controller electrically coupled with the control valve. A wheel force sensor is configured to detect an amount of force on the wing wheel assembly and communicate the amount of force to the controller. The actuator assembly is coupled between the main frame section and the frame wing section. The controller operably controls movement of the control valve to actuate the actuator assembly and adjust the amount of force on the wing wheel assembly.

Abstract: An implement includes a mechanical coupling component configured to removably couple the implement to a support machine, a hydraulic fluid supply line configured to receive a supply flow of hydraulic fluid under pressure from a hydraulic system associated with the support machine, and a hydraulically-powered component configured to be actuated using the hydraulic fluid. The implement also includes a hydraulic fluid recovery system comprising a hydraulic fluid return line configured to fluidically couple to the hydraulic system associated with the support machine and provide a return flow of hydraulic fluid to the hydraulic system. A hydraulic fluid reservoir is configured to, when the hydraulic fluid return line is decoupled from the hydraulic system associated with the support machine, receive a portion of the hydraulic fluid from the hydraulic fluid return line when a fluid pressure in the hydraulic fluid return line increases to a pressure threshold.

Abstract: An agricultural machine includes a main frame, a rotate frame, and a row unit. A control method for the machine includes: selecting at least one of: (i) a desired position-based relationship between a portion of the rotate frame and the row unit, and (ii) a desired downforce of the row unit; determining at least one of: (i) an actual position-based relationship defined between the rearward portion of the rotate frame and the row unit, and (ii) an actual downforce of the row unit; and adjusting at least one of: (i) the actual position-based relationship toward the desired position-based relationship, and (ii) the actual downforce of the row unit toward the desired downforce of the row unit; wherein adjusting the actual position-based relationship and adjusting the actual downforce of the row both include moving the rotate frame relative to the main frame of the agricultural machine.

Abstract: An agricultural machine includes a main frame, a rotate frame, and a row unit. A control method for the machine includes: selecting at least one of: (i) a desired position-based relationship between a portion of the rotate frame and the row unit, and (ii) a desired downforce of the row unit; determining at least one of: (i) an actual position-based relationship defined between the rearward portion of the rotate frame and the row unit, and (ii) an actual downforce of the row unit; and adjusting at least one of: (i) the actual position-based relationship toward the desired position-based relationship, and (ii) the actual downforce of the row unit toward the desired downforce of the row unit; wherein adjusting the actual position-based relationship and adjusting the actual downforce of the row both include moving the rotate frame relative to the main frame of the agricultural machine.

Abstract: Agricultural implements and hydraulic circuits for agricultural implements are disclosed herein. An agricultural implement includes a fluid source, a plurality of fluid demand devices, a delivery control valve, and a priority valve. The fluid source is configured to supply hydraulic fluid. The plurality of fluid demand devices are each configured to receive hydraulic fluid supplied by the fluid source during operation of the agricultural implement. The delivery control valve is fluidly coupled between the fluid source and a first fluid demand device. The delivery control valve is configured to selectively deliver hydraulic fluid supplied by the fluid source to the first fluid demand device during operation of the agricultural implement. The priority valve is fluidly coupled between the delivery control valve and the first fluid demand device.

Abstract: A meter assembly for an agricultural machine includes a meter, a conduit, and a bypass. The meter includes a roller to move commodity to the conduit. The bypass is coupled to the conduit and the meter to facilitate air flow therebetween free of interference from the roller or the commodity.

Abstract: Apparatuses, systems, and methods for coupling a row unit to a frame of an agricultural implement are disclosed. A row unit, such as a planter row unit may be coupled to a frame of an agricultural planter by engagement between mounting features of the planter row unit to one or more rails formed on a frame of the agricultural planter. One or more of the mounting features may be movable relative to one or more other mounting features in order to secure the planting row unit to the frame of the agricultural planter.

Abstract: One or more techniques and/or systems are disclosed for application of a supplemental downward force to a ground working implement. A mechanical advantage from a lever arm can be utilized to apply supplemental downforce to a ground working implement. A biasing force can be applied to the lever arm by a spring assembly at various locations. Moving the spring assembly along the lever arm can vary the amount of downward force applied by the lever arm to ground working implement. In some implementations, moving the spring assembly to a different end of the lever arm applies an upward force to a coupled ground working implement.

Abstract: A control system for controlling an implement that is movable between a work mode and a transport mode. The control system includes a source of hydraulic fluid, a first actuator and a second actuator. The first and second actuators are fluidly coupled to the source and disposed parallel to one another. A sensor detects movement of the first and second actuators between their retracted and fully extended positions, and a control valve is disposed in communication with the sensor and in fluid communication with the first and second actuators. As the implement moves to its transport mode, the sensor detects movement of the first and second actuators towards their fully extended positions. The control valve inhibits movement of the first and second actuators before either actuator reaches its fully extended position.