Distributor for refrigeration system
First Claim
Patent Images
1. A distributor for delivering refrigerant from an expansion valve to a multicircuit evaporator, the distributor comprising:
- (a) a body including inlet means, outlet means and a chamber communicating between the inlet means and the outlet means;
(b) the inlet means including a nozzle passage sized large enough for pulldown load;
(c) the outlet means including a plurality of discharge passages, and(d) movable flow control means within the chamber providing a variable restriction to continuous refrigerant flow by reducing the effective nozzle passage, sized for pulldown load, to an effective nozzle passage sized for holding load.
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Accused Products
Abstract
This refrigerant distributor (20) is used in a refrigeration system (10) for delivering refrigerant from a thermostatic expansion valve (18) to a multi-circuit evaporator (22). The distributor (20) includes a body (30) having an inlet (32) providing a nozzle (40), an outlet (34) providing a plurality of discharge passages (52) and a head space (48) disposed between the nozzle (40) and the discharge passages (52). A member (56) is movable in the head space (48) to vary the flow from the nozzle passage (40) into the discharge passages (52) to suit normal load and pulldown load.
41 Citations
16 Claims
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1. A distributor for delivering refrigerant from an expansion valve to a multicircuit evaporator, the distributor comprising:
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(a) a body including inlet means, outlet means and a chamber communicating between the inlet means and the outlet means; (b) the inlet means including a nozzle passage sized large enough for pulldown load; (c) the outlet means including a plurality of discharge passages, and (d) movable flow control means within the chamber providing a variable restriction to continuous refrigerant flow by reducing the effective nozzle passage, sized for pulldown load, to an effective nozzle passage sized for holding load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A distributor for delivering refrigerant from an expansion valve to a multi-circuit evaporator the distributor comprising:
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(a) a body including inlet means outlet means and a chamber communicating between the inlet means and the outlet means; (b) the inlet means including a nozzle passage; (c) the outlet means including a plurality of discharge passages, (d) flow control means within the chamber, effective to vary the flow from the nozzle passage into the discharge passages, (e) the flow control means including a piston mounted in the body and having an end, and means urging the end toward the nozzle passage, (f) the piston end including a substantially conical end received by a nozzle passage to define a variable annulus, and (g) the piston including a rotatable member mounted to a piston shaft and tending to produce turbulence within the chamber during refrigerant flow. - View Dependent Claims (15, 16)
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Specification