CA2636006A1 - Rotor assembly for rotary compressor - Google Patents

Rotor assembly for rotary compressor Download PDF

Info

Publication number
CA2636006A1
CA2636006A1 CA002636006A CA2636006A CA2636006A1 CA 2636006 A1 CA2636006 A1 CA 2636006A1 CA 002636006 A CA002636006 A CA 002636006A CA 2636006 A CA2636006 A CA 2636006A CA 2636006 A1 CA2636006 A1 CA 2636006A1
Authority
CA
Canada
Prior art keywords
rotor
compressor according
sealed chamber
intake ports
apices
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002636006A
Other languages
French (fr)
Other versions
CA2636006C (en
Inventor
Darryl Fleger
David Robert Gibbs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RANDELL TECHNOLOGIES Inc
Original Assignee
RANDELL TECHNOLOGIES Inc
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 RANDELL TECHNOLOGIES Inc filed Critical RANDELL TECHNOLOGIES Inc
Publication of CA2636006A1 publication Critical patent/CA2636006A1/en
Application granted granted Critical
Publication of CA2636006C publication Critical patent/CA2636006C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/22—Rotary-piston pumps specially adapted for elastic fluids of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/001—Radial sealings for working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C29/0064—Magnetic couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A compressor having a rotor assembly within which a rotor is rotated on an eccentric shaft in a sealed chamber. Two or more intake ports are provided that open into the sealed chamber and two or more exhaust ports are provided with one way valves, to permit compressed gas to exit the sealed chamber. The geometry of the rotor and sealed chamber and eccentric drive are such that apices of the rotor remain in contact with a peripheral wall of the sealed chamber as the rotor rotates and apex seals are provided on the apices of the rotor to prevent leakage of the gas around the apices of the rotor. In a preferred embodiment the rotor is a multi-lobed rotor orbiting within a trochoidal chamber.

Claims (17)

1. A compressor having a rotor assembly within which a rotor is rotated on an eccentric shaft in a sealed chamber, two or more intake ports are provided that open into the sealed chamber, two or more exhaust ports are provided with one way valves, to permit compressed gas to exit the sealed chamber, the geometry of the rotor and sealed chamber and eccentric drive are such that apices of the rotor remain in contact with a peripheral wall of the sealed chamber as the rotor rotates and apex seals are provided on the apices of the rotor to prevent leakage of the gas around the apices of the rotor.
2. A compressor according to claim 1, wherein the rotor is a multi-lobed rotor orbiting within a trochoidal chamber.
3. A compressor according to claim 2, wherein the rotor is a three lobed rotor journalled on a shaft and having a ring gear driven by timing pinion, the gear ratio of the ring gear to the timing pinion being three to one.
4. A compressor according to any one of claims 1, 2 or 3 wherein the apex seals are compression seals that remain in contact with the peripheral wall of the sealed chamber as the rotor rotates.
5. A compressor according to claim 4 wherein the apex seals have an apex seal spring to maintain the apex seal in contact with the peripheral wall of the sealed chamber as the rotor rotates.
6. A compressor according to any one of claims 1 to 5 wherein the rotor assembly comprises a back plate, rotor housing and front plate wherein an inner peripheral wall of the rotor housing together with inner surfaces of the back plate and front plate define the sealed chamber within which the rotor is rotated on an eccentric shaft.
7. A compressor according to claim 6 having a pair of intake ports provided that open into the sealed chamber and a pair of exhaust ports provided in the rotor housing with one way valves, to permit compressed gas to exit the sealed chamber as the rotor rotates.
8. A compressor according to claim 7 wherein the pair of intake ports are provided in the back plate.
9. A compressor according to claim 7 wherein the pair of intake ports are provided in the front plate.
10. A compressor according to claim 6 having a one or more intake ports provided in the back plate and one or more intake ports in the front plate, all of said intake ports opening into the sealed chamber and a pair of exhaust ports provided in the rotor housing with one way valves, to permit compressed gas to exit the sealed chamber as the rotor rotates.
11. A compressor according to any one of claims 1 to 10 having a rotary drive enclosed by a sealed casing and orbiting the rotor, a driven element of a magnetic coupling in driving connection with the rotary drive and orbiting the rotor, the driven element enclosed by the sealed casing and including at least one magnet, a driving element of the magnetic coupling outside of the casing in close proximity to the driven element, and an arrangement for rotating the driving element.
12. A compressor according to claim 11, wherein the arrangement for rotating the driving element includes an electric motor.
13. A compressor according to claim 12, wherein the magnet includes a plurality of electromagnets.
14. A compressor according to claim 13, wherein the driving element includes a plurality of electromagnets.
15. A compressor according to any one of claims 1 to 10 having a rear vector plate to cap the back of the rotor assembly.
16. A compressor according to claim 16 having a seal retention plate to cap the front of the rotor assembly and having an opening through which the shaft extends to permit an end of the shaft to be connected to a direct drive.
17. A compressor according to claim 16 having a seal around that portion of the shaft passing through the opening in the seal retention plate.
CA2636006A 2008-04-28 2008-07-23 Rotor assembly for rotary compressor Expired - Fee Related CA2636006C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7140208P 2008-04-28 2008-04-28
US61/071,402 2008-04-28

Publications (2)

Publication Number Publication Date
CA2636006A1 true CA2636006A1 (en) 2009-03-26
CA2636006C CA2636006C (en) 2010-09-14

Family

ID=40475144

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2636006A Expired - Fee Related CA2636006C (en) 2008-04-28 2008-07-23 Rotor assembly for rotary compressor

Country Status (5)

Country Link
US (3) US20110262291A1 (en)
EP (1) EP2297464A1 (en)
CN (1) CN102076972A (en)
CA (1) CA2636006C (en)
WO (1) WO2009132412A1 (en)

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US10087758B2 (en) 2013-06-05 2018-10-02 Rotoliptic Technologies Incorporated Rotary machine
CN104389639B (en) * 2013-09-23 2017-09-05 摩尔动力(北京)技术股份有限公司 Eccentric pivot hole rotor fluid mechanism
CN103835947A (en) * 2014-02-26 2014-06-04 北京工业大学 Closed triangle rotor micro-compressor
JP2016035215A (en) * 2014-08-01 2016-03-17 サンデンホールディングス株式会社 Compressor
CN104131977B (en) * 2014-08-18 2016-09-07 梁运富 Drum type brake compressor
EP3224010A2 (en) 2014-11-25 2017-10-04 Corning Incorporated Apparatus and method of manufacturing ceramic honeycomb body
EP3580460A4 (en) 2017-04-07 2020-11-04 Stackpole International Engineered Products, Ltd. Epitrochoidal vacuum pump
EP3850189A4 (en) 2018-09-11 2022-06-15 Rotoliptic Technologies Incorporated Sealing in helical trochoidal rotary machines
US11815094B2 (en) 2020-03-10 2023-11-14 Rotoliptic Technologies Incorporated Fixed-eccentricity helical trochoidal rotary machines
US11802558B2 (en) 2020-12-30 2023-10-31 Rotoliptic Technologies Incorporated Axial load in helical trochoidal rotary machines
CN113084487B (en) * 2021-05-20 2022-04-08 大庆市奥凯利石油机械制造有限公司 Compressor production, manufacturing, assembling and assembling method
US11761376B1 (en) * 2022-11-11 2023-09-19 Pratt & Whitney Canada Corp. Side plate for rotary engine

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Also Published As

Publication number Publication date
CA2636006C (en) 2010-09-14
WO2009132412A1 (en) 2009-11-05
US20150152867A1 (en) 2015-06-04
EP2297464A1 (en) 2011-03-23
CN102076972A (en) 2011-05-25
US20110262291A1 (en) 2011-10-27
US20180291898A1 (en) 2018-10-11

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Effective date: 20190723