(19)
(11) EP 2 607 697 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.03.2017 Bulletin 2017/09

(43) Date of publication A2:
26.06.2013 Bulletin 2013/26

(21) Application number: 12196357.3

(22) Date of filing: 10.12.2012
(51) International Patent Classification (IPC): 
F04B 7/00(2006.01)
F04B 49/22(2006.01)
 F04B 39/00(2006.01)
F04B 41/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 20.12.2011 IT CO20110070

(71) Applicant: Nuovo Pignone S.p.A.
50127 Florence (IT)

(72) Inventors:
  • Bagagli, Riccardo
    50127 Firenze (IT)
  • Tognarelli, Leonardo
    50127 Firenze (IT)

(74) Representative: Illingworth-Law, William Illingworth 
GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith
London W6 8BJ
London W6 8BJ (GB)

   


(54) Methods and devices for constructively using the pressure pulsations in reciprocating compressors installations


(57) Apparatuses and methods for constructively use pressure pulses to enhance the volumetric efficiency of a reciprocating compressor are provided. An apparatus includes a gas circulation device and a controller 110. The gas circulation device provides a path through which the gas circulates between a reciprocating compressor 10 and a volume bottle 50 buffering the reciprocating compressor from an installation. The gas circulation device is configured to have to have a resonance frequency substantially equal to a frequency of performing compression cycles in the reciprocating compressor. The controller 110 is configured to control timing of switching a valve located between the reciprocating compressor and the gas circulation device, in order to use constructively pressure pulsations occurring in the gas circulation device, to enhance the volumetric efficiency of the reciprocating compressor.







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