Aeroquip Corporation

Parker-hannifin Corporation

Frederick J Pilon

Steven M Knowles

Scott David Gill

Justin C Miller

Andrew H Bradley

A shut-off valve for pressurized fluids in an air cooling/heating apparatus having a first duct receiving a first restrictor and a second restrictor. Both restrictors are coaxially formed with a capillary through which the pressurized fluid passes and which causes the rapid expansion of the fluid when the fluid exits from a distal end of the capillary. The outer surface of the restrictors is in direct contact with the interior surface of the first duct. The valve can further include a sampling instrument located between the restrictors.

Dual restrictor shut-off valve

A fluid flow circuit intended for use with heat pumps having a flow control valve comprising a pair of restrictor assemblies positioned in opposed relationship. The first restrictor assembly provides for restricted flow in a first direction and unrestricted flow in the opposed and second direction. The second restrictor assembly provides for restricted flow in the second direction and unrestricted flow in the first and opposed direction.

Dual restrictor flow control

A restrictor for use in conduit systems, such as refrigeration and heat pump circuits for controlling the flow of fluid therein. The restrictor incorporates a unique shape to lower the operational noise normally generated by a restrictor without affecting the flow characteristics. Noise level is reduced by utilizing a specific configuration of the outer surfaces of the restrictor with respect to the direction of fluid flow.

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New Haven, IN, United States of America

Frederick J Pilon