WO2014033563A3 - Simplified construction multistage reciprocating volumetric compressor - Google Patents

Simplified construction multistage reciprocating volumetric compressor Download PDF

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Publication number
WO2014033563A3
WO2014033563A3 PCT/IB2013/054837 IB2013054837W WO2014033563A3 WO 2014033563 A3 WO2014033563 A3 WO 2014033563A3 IB 2013054837 W IB2013054837 W IB 2013054837W WO 2014033563 A3 WO2014033563 A3 WO 2014033563A3
Authority
WO
WIPO (PCT)
Prior art keywords
movable piston
elastic memory
main ring
memory main
wall
Prior art date
Application number
PCT/IB2013/054837
Other languages
French (fr)
Other versions
WO2014033563A2 (en
Inventor
Marco Ghiotto
Original Assignee
Nardi Compressori S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nardi Compressori S.R.L. filed Critical Nardi Compressori S.R.L.
Priority to EP13747505.9A priority Critical patent/EP2912311B1/en
Publication of WO2014033563A2 publication Critical patent/WO2014033563A2/en
Publication of WO2014033563A3 publication Critical patent/WO2014033563A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/005—Multi-stage pumps with two cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A simplified construction multistage reciprocating volumetric compressor (1) comprising a plurality of compression stages (2, 3), each of which includes a movable piston (4) slidingly coupled with reciprocating swinging motion into a compression chamber of a fluid defined inside an outer cylinder (5), motorization means (6), operatively connected with a movable piston (4) of each of the compression stages (2, 3) through transmission means (7), and sealing means (8) interposed between the movable piston (4) and the outer cylinder (5) which the outer wall cooperate by contact with. In particular, the sealing means (8) comprise an elastic memory main ring (9) made of composite material, coupled with the outer wall (4a) of the movable piston (4) through joint means (10) and cooperating with an auxiliary radial thrust ring (11), interposed between the elastic memory main ring (9) and the outer wall (4a) of the movable piston (4) in such a way as oppose the structural deformations due to overheating suffered by the elastic memory main ring (9) during operation, thus preventing these the deformations become permanent, and keep the structural integrity of the elastic memory main ring (9) unchanged, increasing fluid pressure inside the compression chamber.
PCT/IB2013/054837 2012-08-28 2013-06-13 Simplified construction multistage reciprocating volumetric compressor WO2014033563A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13747505.9A EP2912311B1 (en) 2012-08-28 2013-06-13 Simplified construction multistage reciprocating volumetric compressor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000250A ITPD20120250A1 (en) 2012-08-28 2012-08-28 MULTISTAGE ALTERNATIVE VOLUMETRIC COMPRESSOR WITH SIMPLIFIED CONSTRUCTION
ITPD2012A000250 2012-08-28

Publications (2)

Publication Number Publication Date
WO2014033563A2 WO2014033563A2 (en) 2014-03-06
WO2014033563A3 true WO2014033563A3 (en) 2014-09-12

Family

ID=46982741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/054837 WO2014033563A2 (en) 2012-08-28 2013-06-13 Simplified construction multistage reciprocating volumetric compressor

Country Status (3)

Country Link
EP (1) EP2912311B1 (en)
IT (1) ITPD20120250A1 (en)
WO (1) WO2014033563A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862736A (en) * 1956-09-28 1958-12-02 Parker Hannifin Corp Sealing assembly of packing rings of different qualities
US3518030A (en) * 1968-04-12 1970-06-30 Gen Motors Corp Fluid supply system
GB1493450A (en) * 1974-09-26 1977-11-30 Thomas Industries Inc Compressors
US4518328A (en) * 1980-03-14 1985-05-21 Kabushiki Kaisha Murayama Seisakusho Piston for piston pump
US5016524A (en) * 1989-03-14 1991-05-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Sealing arrangement for a piston in a compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862736A (en) * 1956-09-28 1958-12-02 Parker Hannifin Corp Sealing assembly of packing rings of different qualities
US3518030A (en) * 1968-04-12 1970-06-30 Gen Motors Corp Fluid supply system
GB1493450A (en) * 1974-09-26 1977-11-30 Thomas Industries Inc Compressors
US4518328A (en) * 1980-03-14 1985-05-21 Kabushiki Kaisha Murayama Seisakusho Piston for piston pump
US5016524A (en) * 1989-03-14 1991-05-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Sealing arrangement for a piston in a compressor

Also Published As

Publication number Publication date
WO2014033563A2 (en) 2014-03-06
ITPD20120250A1 (en) 2014-03-01
EP2912311B1 (en) 2017-04-26
EP2912311A2 (en) 2015-09-02

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