F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 5/06 (2006.01) F16K 5/20 (2006.01) F25B 41/04 (2006.01)
Patent
CA 2133851
IMPROVED FLOW REFRIGERATION VALVE ABSTRACT OF THE DISCLOSURE A valve, such as a compressor or line service valve, for use in refrigeration or air conditioning fluid circuits having an improved flow for improved energy efficiency is disclosed. The valve incorporates a rotary ball member with a 90° fluid passage diameter that is equal to or greater than the diameter of the fluid line that it services. Rotation of a primary actuator stem rotates the ball member to open and close the valve. An annular ball seal provides a seat against which the ball may be positively sealed. A secondary stem is aligned on an alternate axis from the primary stem that is preferably collinear with a fluid line. The secondary stem effectuates a positive engagement between the rotary ball member and the ball seal. A plunger cooperates with locator indentations and a groove in the rotary ball member to center the ball within the valve and align its fluid passage with fluid line connectors. Locator indentations also ensure that the rotary ball member is properly oriented when in either the opened or closed positions. When the secondary stem is engaged, iteffectuates a positive shut-off force to seal the ball member against the ball seal.
Macrae & Co.
Mueller Industries Inc.
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