Expansible chamber devices – Displacement control of plural cylinders arranged in... – Parallel cylinders
Reexamination Certificate
2004-04-02
2009-02-17
Lopez, F. Daniel (Department: 3745)
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Parallel cylinders
Reexamination Certificate
active
07490540
ABSTRACT:
Reciprocating compressor (100), in particular CO2compressor for vehicle air-conditioning units, with a swivel disk (107), in particular annular in form, that is rotated by a drive shaft (104) and can be positioned at an adjustable angle with respect to the drive shaft (104), wherein said disk is connected in an articulated manner to a sliding sleeve (108) that can be moved axially along the drive shaft (104) as well as to at least one supporting element (109) so disposed that it is spaced apart from the drive shaft (104) and rotates therewith, and wherein each of the pistons (106) comprises a joint arrangement (110) with which the swivel disk (107) is in sliding engagement. The articulated connection (116) between drive shaft (104) and swivel disk (107) serves substantially only to transmit torque, whereas the supporting element (109) serves substantially only to provide axial support to the pistons (106) and hence to absorb the force exerted by the gas.
REFERENCES:
patent: 2964234 (1960-12-01), Loomis
patent: 6164252 (2000-12-01), Kuhn et al.
patent: 44 11 926 (1994-10-01), None
patent: 197 49 727 (1999-10-01), None
patent: 100 10 132 (2001-04-01), None
patent: 1 172 557 (2002-01-01), None
patent: 2 782 126 (2000-02-01), None
patent: WO 02/38959 (2002-05-01), None
Andrus Sceales Starke & Sawall LLP
Lopez F. Daniel
Zexel Valeo Compressor Europe GmbH
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