Abstract: A pump and purge valve configuration may include an inlet, an outlet arranged downstream of the inlet and defining a portion of an operational fluid pathway, and a pump mechanism arranged along the operational fluid pathway between the inlet and the outlet. The pump and purge valve configuration may also include a purging fluid pathway having a purge inlet in fluid communication with the operational fluid pathway at a point downstream of the pump. The purging fluid pathway may extend from the purge inlet to a relief point. The pump and purge valve configuration may also include a purge valve arranged along the purging fluid pathway. The purge valve may be configured to remain open unless a triggering fluid pressure develops in the pump mechanism.

Abstract: A pump is disclosed. The pump may have a housing connectable to a transmission of a machine adjacent a front end of the pump. The pump may also have a flange attached to the housing adjacent a rear end of the pump. The flange may have a longitudinal axis extending along a length of the flange, and a transverse axis extending along a width of the flange. The flange may also have a first mounting hole configured to connect an auxiliary pump to the flange. Further, the flange may have a second mounting hole configured to connect a bracket to the flange. The first mounting hole may be positioned on a first axis inclined at an acute angle relative to the longitudinal axis of the flange.

Abstract: A pump and purge valve configuration may include an inlet, an outlet arranged downstream of the inlet and defining a portion of an operational fluid pathway, and a pump mechanism arranged along the operational fluid pathway between the inlet and the outlet. The pump and purge valve configuration may also include a purging fluid pathway having a purge inlet in fluid communication with the operational fluid pathway at a point downstream of the pump. The purging fluid pathway may extend from the purge inlet to a relief point. The pump and purge valve configuration may also include a purge valve arranged along the purging fluid pathway. The purge valve may be configured to remain open unless a triggering fluid pressure develops in the pump mechanism.

Abstract: An emergency steering pump system for a primary pump providing a standby pressure via a primary output line includes a load sense line that is configured to branch-off from the primary output line. The load sense line has a first orifice disposed therein. A secondary pump is included for providing a margin pressure via a secondary output line that is coupled to the primary output line at a point downstream of the load sense line. A communication line is coupled to the primary output line at a point upstream of the load sense line. The communication line has a pressure control mechanism disposed therein. An output of the pressure control mechanism is coupled with an unloader valve of the secondary pump such that the pressure control mechanism is configured to bring about the margin pressure from the secondary pump.

Abstract: An emergency steering pump system for a primary pump providing a standby pressure via a primary output line includes a load sense line that is configured to branch-off from the primary output line. The load sense line has a first orifice disposed therein. A secondary pump is included for providing a margin pressure via a secondary output line that is coupled to the primary output line at a point downstream of the load sense line. A communication line is coupled to the primary output line at a point upstream of the load sense line. The communication line has a pressure control mechanism disposed therein. An output of the pressure control mechanism is coupled with an unloader valve of the secondary pump such that the pressure control mechanism is configured to bring about the margin pressure from the secondary pump.

Abstract: A hydraulic fluid supply portion of a hydraulic steering control system may include an accumulator holding a quantity of pressurized steering fluid, and a priority valve. The priority valve may have a priority supply inlet port fluidly connected to the accumulator for receiving pressurized steering fluid from the accumulator, and a priority supply outlet port fluidly connected to a steering flow amplifier circuit. The priority valve may have a normally open position with a minimal pressure drop between the priority supply inlet port and the priority supply outlet port, and a flow restriction position where fluid flow between the ports is restricted. A load signal line from a steering control circuit to the priority valve may bias the priority valve toward the normally open position in response to an operator steering command to provide pressurized steering fluid to the steering flow amplifier circuit.

Abstract: A hydraulic fluid supply portion of a hydraulic steering control system may include an accumulator holding a quantity of pressurized steering fluid, and a priority valve. The priority valve may have a priority supply inlet port fluidly connected to the accumulator for receiving pressurized steering fluid from the accumulator, and a priority supply outlet port fluidly connected to a steering flow amplifier circuit. The priority valve may have a normally open position with a minimal pressure drop between the priority supply inlet port and the priority supply outlet port, and a flow restriction position where fluid flow between the ports is restricted. A load signal line from a steering control circuit to the priority valve may bias the priority valve toward the normally open position in response to an operator steering command to provide pressurized steering fluid to the steering flow amplifier circuit.

Abstract: An articulated work machine is steered via left and right hydraulic cylinders that swivel a front portion of a work machine relative to a back portion about a vertical articulation axis. When a low force turn is being performed, high pressure is supplied to only one of the left and right hydraulic cylinders. When a high force turn is performed, high pressure is supplied to one of the left and right hydraulic cylinders, and pressurized hydraulic fluid is also supplied to the other of the left and right hydraulic cylinders in proportion to the torque required for the turn. This strategy allows for excess pressurized fluid, which is not used for the steering purpose, to be utilized by hydraulic implements of the work machine to increase performance capabilities while the machine is being steered in low force mode under light steering load.

Abstract: An apparatus for three dimensional inspection of an electronic part which has a camera and illuminator for imaging a first view of the electronic part. An optical element is positioned to reflect a different view of the electronic part into the camera, and the camera thus provides an image of the electronic part having differing views of the electronic part. An image processor applies calculations on the differing views to calculate a three dimensional position of at least one portion of the electronic part.

Abstract: A calibration and part inspection method for the inspection of ball grid array, BGA, devices. Two cameras image a precision pattern mask with dot patterns deposited on a transparent reticle. The precision pattern mask is used for calibration of the system. A light source and overhead light reflective diffuser provide illumination. A first camera images the reticle precision pattern mask from directly below. An additional mirror or prism located below the bottom plane of the reticle reflects the reticle pattern mask from a side view, through prisms or reflective surfaces, into a second camera and a second additional mirror or prism located below the bottom plane of the reticle reflects the opposite side view of the reticle pattern mask through prisms or mirrors into a second camera. By imaging more than one dot pattern the missing state values of the system can be resolved using a trigonometric solution.

Abstract: A calibration and part inspection method for the inspection of ball grid array, BGA, devices. Two cameras image a precision pattern mask with dot patterns deposited on a transparent reticle. The precision pattern mask is used for calibration of the system. A light source and overhead light reflective diffuser provide illumination. A first camera images the reticle precision pattern mask from directly below. An additional mirror or prism located below the bottom plane of the reticle reflects the reticle pattern mask from a side view, through prisms or reflective surfaces, into a second camera and a second additional mirror or prism located below the bottom plane of the reticle reflects the opposite side view of the reticle pattern mask through prisms or mirrors into a second camera. By imaging more than one dot pattern the missing state values of the system can be resolved using a trigonometric solution.

Abstract: A calibration and part inspection method for the inspection of ball grid array, BGA, devices. One or more cameras image a precision pattern mask with dot patterns deposited on a transparent reticle. The precision pattern mask is used for calibration of the system. A light source and overhead light reflective diffuser provide illumination. A camera images the reticle precision pattern mask from directly below. An additional mirror or prism located below the bottom plane of the reticle reflects the reticle pattern mask from a side view, through prisms or reflective surfaces, into the camera. By imaging more than one dot pattern the missing state values of the system can be resolved using a trigonometric solution. The reticle with the pattern mask is removed after calibration and the BGA to be inspected is placed with the balls facing downward, in such a manner as to be imaged by a single camera, or optionally, via additional cameras.

Abstract: A calibration and part inspection method for the inspection of ball grid array, BGA, devices. One or more cameras image a precision pattern mask with dot patterns deposited on a transparent reticle. The precision pattern mask is used for calibration of the system. A light source and overhead light reflective diffuser provide illumination. A camera images the reticle precision pattern mask from directly below. An additional mirror or prism located below the bottom plane of the reticle reflects the reticle pattern mask from a side view, through prisms or reflective surfaces, into the camera. By imaging more than one dot pattern the missing state values of the system can be resolved using a trigonometric solution. The reticle with the pattern mask is removed after calibration and the BGA to be inspected is placed with the balls facing downward, in such a manner as to be imaged by a single camera, or optionally, via additional cameras.

Abstract: An electrohydraulic fan control system includes an engine, a hydraulic pump, hydraulic lines, a hydraulic cooling fan, and a solenoid controlled hydraulic valve. The engine includes an electronic control circuit which generates a control signal based on various temperature sensors which is used by the hydraulic valve to control the speed of the cooling fan.