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Patent Searching and Data


Title:
FLOW RESTRICTOR AND GAS COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2013/071382
Kind Code:
A3
Abstract:
The present invention refers to a flow restrictor (1) for application in bearing formation between a piston (2) and a cylinder (3) of a gas compressor (4). Such gas compressor (4) comprises at least a pad (5) externally surrounding the cylinder (3). Additionally, the gas compressor (4) also comprises at least an inner cavity (6), arranged between the pad (5) and the cylinder (3), fluidly fed by a discharge flow arising from a compression movement exerted by the piston (2) within the cylinder (3). Additionally, the gas compressor (4) further comprises at least a bearing formation gap (7) separating a piston outer wall (2) and an inner cylinder wall (3). Further, the gas compressor (4) also comprises at least a flow restrictor (1) provided with a housing (12) fluidly associating the inner cavity (6) to the bearing formation gap (7). Such flow restrictor (1) comprises at least a porous element (8), associated to the housing (12), provided with at least a restrictor part provided with a porosity sized to limit the gas flow flowing from the inner cavity (6) to the bearing formation gap (7). The present invention also refers to a sealing existent between the porous element (8) and the housing (12), the filtering features of the porous element (8) and to a gas compressor (4) comprising a flow restrictor (1) as described above.

Inventors:
BRUEGGMAN MUEHLE HENRIQUE (BR)
LILIE DIETMAR ERICH BERNHARD (BR)
Application Number:
BR2012/000448
Publication Date:
August 01, 2013
Filing Date:
November 14, 2012
Export Citation:
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Assignee:
WHIRLPOOL SA (BR)
BRUEGGMAN MUEHLE HENRIQUE (BR)
LILIE DIETMAR ERICH BERNHARD (BR)
International Classes:
F04B35/04; F04B39/12; F04B53/00; F16C29/02
Foreign References:
US20090238701A12009-09-24
US20100218548A12010-09-02
GB1536118A1978-12-20
DE102006009268A12007-08-30
Attorney, Agent or Firm:
DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (Rua Marquês de Olinda 7, Botafogo -040 - Rio de Janeiro - RJ, BR)
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