SUCTION LINE ACCUMULATOR

• US 3,792,594 A
• Filed: 09/20/1971
• Issued: 02/19/1974
• Est. Priority Date: 09/17/1969
• Status: Expired due to Term

• Current Assignee: Ardco, Inc. (Carrier Global Corporation)
• Original Assignee: Daniel E. Kramer
• Inventors: Kramer, Daniel E.
• Primary Examiner(s): O'Dea, William F.
• Assistant Examiner(s): Ferguson, Peter D.
• Application Number:
  US05/182,236
• Time in Patent Office: 883 Days
• Field of Search: 62/196,278,503
• US Class Current: 62/503
• CPC Class Codes: F25B 43/006 Accumulators
• CPC Class Codes: F25B 47/022 hot gas defrosting

Abstract

A refrigerant accumulator in the suction line of a closed refrigeration system, provided with a controllably heated metering tube between the bottom of the accumulator and a downstream point in the suction line, to ensure at least adequate re-evaporation of the refrigerant, to eliminate slugging and to return oil to the compressor, particularly during the hot gas defrosting portion of the refrigeration cycle, the heating being effected electrically or by means of hot gas from the compressor.

Claims

1. An accumulator for a refrigeration system comprising a tank, an inlet connection, an outlet connection extending below the tank, a conduit mechanically coupled to the bottom of the tank and the outlet connection, extending only underneath the tank, constituting a trap which has a first leg, descending from the tank, a second leg rising to the outlet connection, heating means thermally connected to said first leg, and separated heating means thermally connected to said second leg.

2. An accumulator for a refrigeration system comprising a tank, an inlet connection, an outlet connection extending below the tank, a conduit mechanically coupled to the bottom of the tank and said outlet connection and extending only underneath said tank, and a heater thermally connected to said conduit, the outlet of the said conduit extending into said outlet connection and being provided with an opening facing upstream.