Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Reexamination Certificate
1999-09-03
2001-01-09
Doerrler, William (Department: 3744)
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
C062S474000, C062S475000, C062S503000, C096S135000
Reexamination Certificate
active
06170288
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to an improved combined filter and adsorbent unit for a refrigerant receiver and to an improved receiver containing a combination of a filter and an adsorbent unit.
By way of background, there are numerous types of filters and adsorbent units used in combination in a receiver of a refrigeration system. However, many filters are small units located over the inlet to the outlet conduit of the receiver, and thus have a relatively small area for filtration, and this small area overlies the relatively small area of the opening of the outlet conduit so that there could be restriction of refrigerant flow in this area. Additionally, there are in existence donut types of adsorbent units which occupy the entire cross sectional area of the receiver and through which all flow must pass. However, sealing of the filter has either been relatively complex or inefficient. It is with the foregoing deficiencies of the prior art that the present invention is concerned.
BRIEF SUMMARY OF THE INVENTION
It is accordingly one object of the present invention to provide an improved combined filter and adsorbent unit which can be installed in a receiver in a simple and unique manner.
Another object of the present invention is to provide an improved refrigerant receiver having a filter and an adsorbent unit uniquely contained therein. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a combined filter and adsorbent unit comprising an elongated tubular member, a filter extending transversely outwardly from said elongated tubular member, and a container of adsorbent material secured relative to said elongated tubular member.
The present invention also relates to an improved refrigerant receiver having a housing, a wall on said housing, a refrigerant inlet on said housing, a refrigerant outlet on said housing, an elongated refrigerant outlet conduit extending lengthwise of said housing in communication with said refrigerant outlet, and a refrigerant-receiving opening in said elongated refrigerant outlet conduit, the improvement comprising an elongated tube mounted about said elongated refrigerant outlet conduit, a filter extending transversely outwardly from said elongated tube and positioned between said refrigerant inlet and said refrigerant-receiving opening in said elongated refrigerant outlet conduit, an outer edge on said filter in contiguous relationship with said wall, and at least one container of adsorbent material in said housing.
The present invention will be more fully understood when the following portions of the specification are read in conjunction with the accompanying drawings wherein:
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Doerrler William
Gastel Joseph P.
Jiang Chen-Wen
Multisorb Technologies, Inc.
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