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US 2003/0080554 A1Published application
Peanut fittings for CO2 air conditioning systems
AssigneeVisteon Global Technologies, Inc.
InventorsFred Georg Schroeder, Eric W. Kesler, Bruno Sima, Marion Elisabeth Lorenz, David William Bertrand
Life of this patent
Estimating the term…
Abstract
A line fitting employs blocks secured together with a stud and a nut and having gaskets or seals which militate against permeation of CO2 when subjected to high pressures and high temperatures, the seals are also resistant to decompression damage.
Claims20
A block fitting for a CO2 air conditioning system comprising:
- a male block including a first aperture having a first end and a second end, the first end of the first aperture of said male block adapted to receive a tube end therein, said male block including a female annular bore surrounding the first aperture to form a channel having a generally u-shaped cross-section;
- a female block including a first aperture having a first end and a second end, the first end of the first aperture of said female block adapted to receive a tube end therein, said female block including an annular collar surrounding the first aperture of said female block and adapted to be inserted into the channel formed by the female annular bore of said male block, at least one of an inner surface of the annular collar and an inner surface of the channel having an annular groove formed therein, the first aperture of said male block and the first aperture of said female block being substantially concentrically aligned;
- a primary seal disposed adjacent and surrounding the second end of the first aperture of said male block and adjacent and surrounding the second end of the first aperture of said female block;
- a secondary seal disposed in the annular groove of the annular collar of said female block, said secondary seal comprising a material with low permeation to CO2;
- and
- a fastener adapted to engage said male block and said female block to sealingly engage the female annular bore of said male block and the annular collar of said female block.
3 more elements
A block fitting for a CO2 air conditioning system comprising:
- a male block including a first aperture having a first end and a second end, the first end of the first aperture of said male block adapted to receive a tube end therein;
- a female block including a first aperture having a first end and a second end, the first end of the first aperture of said female block adapted to receive a tube end therein, said female block including an annular collar surrounding the first aperture of said female block and adapted to receive said male block therein to substantially concentrically align the first aperture of said male block and the first aperture of said female block;
- a seal disposed adjacent and surrounding the second end of the first aperture of said male block and adjacent and surrounding the second end of the first aperture of said female block, said seal comprising a material with low permeation to CO2;
- and
- a fastener adapted to sealingly engage said male block and said female block.
2 more elements
A block fitting for a CO2 air conditioning system comprising:
- a clamping block including a first aperture formed therein;
- a hollow tube end form adapted to be received in the first aperture of said clamping block, said tube end form having a first end and a second end, the first end of said tube end form adapted to receive a tube end therein;
- a female block including a first aperture having a first end and a second end, the first end of the first aperture of said female block adapted to receive a tube end therein and the second end of the first aperture of said female block adapted to receive the second end of said tube end form therein;
- a seal disposed between said tube end form and said female block, the seal comprising a material with low permeation to CO2;
- and
- a fastener adapted to sealingly engage said tube end form and said female block.
3 more elements
Dependencies are inferred from the claim text.