Disclosed are instruments used in collecting fluid samples from a subject such as, for example, aqueous humor samples. The instrument involves a linear actuator that, when engaged by the user via a switch, causes a syringe held within the instrument to collect a defined amount of sample. Kits comprising the instrument as well as methods of using the instrument to collect fluid samples are also disclosed.

Disclosed are instruments used in collecting fluid samples from a subject such as, for example, aqueous humor samples. The instrument involves a linear actuator that, when engaged by the user via a switch, causes a syringe held within the instrument to collect a defined amount of sample. Kits comprising the instrument as well as methods of using the instrument to collect fluid samples are also disclosed.

A fluid end comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is releasably attached to a connect plate. Each connect plate is attached to a power source using a plurality of stay rods. Each fluid end section comprises a housing in fluid communication with a pair of intake manifolds and a discharge conduit. A fluid routing plug is installed within each housing and is configured to route fluid throughout the housing. A plunger is installed within stuffing box attached to each housing. A number of features, including the location of seals within bore walls and carbide inserts within valve guides, aid in reducing or transferring wear.

A vacuum generation system, in particular for applications to hybrid-drive motor vehicles, comprises a vacuum pump (10) arranged to be independently driven by either an internal combustion engine (1 1) or an electric motor (12) depending on the vacuum conditions in utilizing devices (15) and the operating conditions of the internal combustion engine. A pump for use in such a system and a method of vacuum generation by using the system are also provided.

A vacuum generation system, in particular for applications to hybrid-drive motor vehicles, comprises a vacuum pump (10) arranged to be independently driven by either an internal combustion engine (1 1) or an electric motor (12) depending on the vacuum conditions in utilizing devices (15) and the operating conditions of the internal combustion engine. A pump for use in such a system and a method of vacuum generation by using the system are also provided.

A motion-transmitting unit including a reciprocating engine having at least one piston operable for reciprocating motion during operation of the reciprocating engine, and a crankshaft interconnected with the at least one piston to rotate in response to the reciprocating motion of the at least one piston, the crankshaft having a first end and a second end opposite the first end. The motion-transmitting unit further includes a first drive shaft interconnected with the first end of the crankshaft to rotate in response to rotation of the crankshaft and a second drive shaft interconnected with the second end of the crankshaft to rotate in response to rotation of the crankshaft.

A motion-transmitting unit including a reciprocating engine having at least one piston operable for reciprocating motion during operation of the reciprocating engine, and a crankshaft interconnected with the at least one piston to rotate in response to the reciprocating motion of the at least one piston, the crankshaft having a first end and a second end opposite the first end. The motion-transmitting unit further includes a first drive shaft interconnected with the first end of the crankshaft to rotate in response to rotation of the crankshaft and a second drive shaft interconnected with the second end of the crankshaft to rotate in response to rotation of the crankshaft.

A system comprises a variable displacement pump, a metering valve, a bypass line, a pressure regulating valve, a position sensor, and a control system. At least one fuel nozzle can be in fluid communication with the output line downstream of the metering valve, wherein the variable displacement pump is configured to supply fuel to the at least one fuel nozzle. The metering valve can be disposed in the output line for controlling outlet flow from the variable displacement pump. The system can also include an actuator line parallel to the variable displacement pump and connected to the output line to provide actuation pressure from pump output of the variable displacement pump.

An electrohydraulic system for a work machine includes a pump, a motor fluidly coupled to the pump, a subassembly driven by the motor, and a rate-control valve fluidly coupled to the pump and the motor. The rate-control valve is movable through a range of positions. A present speed of the motor is proportional to a present position of the rate-control valve. The present position of the rate-control valve is adjustable by varying a current supplied to the rate-control valve. The supply of current to the rate-control valve is adjusted based on the difference between the present speed of the motor and a target speed of the motor.

An electrohydraulic system for a work machine includes a pump, a motor fluidly coupled to the pump, a subassembly driven by the motor, and a rate-control valve fluidly coupled to the pump and the motor. The rate-control valve is movable through a range of positions. A present speed of the motor is proportional to a present position of the rate-control valve. The present position of the rate-control valve is adjustable by varying a current supplied to the rate-control valve. The supply of current to the rate-control valve is adjusted based on the difference between the present speed of the motor and a target speed of the motor.