US20080169157A1 - Lip seal lubrication reservoir and method of level control - Google Patents

Lip seal lubrication reservoir and method of level control Download PDF

Info

Publication number
US20080169157A1
US20080169157A1 US10/307,688 US30768802A US2008169157A1 US 20080169157 A1 US20080169157 A1 US 20080169157A1 US 30768802 A US30768802 A US 30768802A US 2008169157 A1 US2008169157 A1 US 2008169157A1
Authority
US
United States
Prior art keywords
lip seal
crankshaft
seal
reservoir
lubricant
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.)
Abandoned
Application number
US10/307,688
Other languages
English (en)
Inventor
Christopher A. Wyker
Ronald J. Duppert
Kenneth A. Wright
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Priority to US10/307,688 priority Critical patent/US20080169157A1/en
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DUPPERTY, RONALD J., WRIGHT, KENNETH A., WYKER, CHRISTOPHER A.
Priority to KR1020030081308A priority patent/KR100561138B1/ko
Priority to EP03257418A priority patent/EP1426618B1/en
Priority to DE60331718T priority patent/DE60331718D1/de
Priority to JP2003401017A priority patent/JP2004183655A/ja
Priority to CNB2003101187816A priority patent/CN100422562C/zh
Publication of US20080169157A1 publication Critical patent/US20080169157A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • 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
    • F04B39/0094—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 crankshaft
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication

Definitions

  • the present invention relates to lubrication of a compressor lip seal. More particularly, the present invention concerns a reservoir and drainage system for adequately lubricating a compressor lip seal while not over-saturating the lip seal.
  • Refrigeration systems such as the type used in transport refrigeration equipment, include, in the simplest form, a compressor, a condenser, an expansion device and an evaporator serially interconnected to form a closed refrigeration circulation path.
  • a compressor In systems that use a reciprocating type compressor, these systems must be lubricated by a lubricating oil which mixes with the refrigerant being compressed therein.
  • a typical reciprocating compressor includes a piston reciprocating within a cylinder for mechanically compressing gaseous refrigerant.
  • Appropriate manifolds and valves are provided to allow gas to be drawn into the cylinder during the down stroke of the piston and to be compressed during the up stroke.
  • Oil is used in such compressors to lubricate the various parts and interfaces there between.
  • a mechanical shaft seal is used to maintain refrigerant pressure within the compressor in an open drive configuration where the drive is external to the compressor.
  • the compressor oil pump deploys an oil film to seal against the leakage of pressurized gas and to lubricate the faces of the seal during operation.
  • mechanical shaft seals are used on the crankshaft of the compressor where the crankshaft exits the compressor crankcase in the vicinity of the gland plate.
  • Crankshafts of such compressors may also employ additional seals, typically a lip seals, for keeping external contamination out of the compressor. Accordingly, lip seals are usually the last line of defense of the internal workings of the compressor and are external to the mechanical shaft seal and most typically located at the gland plate assembly.
  • lip seals have the tendency to prematurely wear, requiring compressor maintenance. Premature wear from friction between the crankshaft and the lip seal can lead to the intrusion of dirt into the compressor cavity, damaging the inner mechanisms of the compressor, and/or allowing excessive leakage of oil to the compressor exterior.
  • incorporation with a refrigeration circuit within an air conditioning system or a refrigeration system it is to be understood that this method of oil collection, lubrication and diversion is equally applicable to other types of compressors, pumps and other applications.
  • FIG. 1 shown is a compressor 10 including shell 12 .
  • Working pistons 14 are mounted for reciprocating movement within cylinders 16 .
  • Each piston is connected to crankshaft 18 via a connecting rod 20 .
  • Connecting rod 20 is secured around offset portion 22 of crankshaft 18 .
  • Crankshaft 18 includes counterbalance 24 for balancing the rotational irregularities in the crankshaft.
  • the crankshaft is mounted and rotates within sleeve 28 and extends through shaft seal cavity 26 of housing 12 .
  • crankshaft seal mechanism 31 is shown in greater detail at the point where the housing 12 is exited by the crankshaft.
  • the crankshaft 18 passes through the mechanical shaft seal spring assembly 45 , shaft seal faces 29 and 33 , gland plate 32 and lip seal 38 having wear surfaces 39 .
  • a gland plate gasket 35 is used to prevent seepage between the housing and the gland plate.
  • the face seal 33 is substantially cylindrical in shape and includes an O-ring 36 , which holds it stationary within inner diameter A of the gland plate 32 .
  • the lip seal 38 secured in gland plate 32 adjacent to but spaced from diameter A, in smaller diameter B, has the function of preventing dirt from entering the shaft seal cavity.
  • An inner disc-shaped space 40 is located between face seal 33 and lip seal 38 and is an internal reservoir for lubricant storage, discussed in further detail below.
  • the crankshaft seal mechanism further includes a cylindrical body 44 formed from a resilient material, using oil between it and the crankshaft to act as a refrigerant seal.
  • the spring 45 wrapped around the exterior of the body 44 and resting against the crankshaft seal thrust face 43 provides axial loading between the two shaft face seals 29 and 33 .
  • the two face seals are loaded such that, with the use of oil, they will act as a refrigerant seal. Due, however, to a pressure differential, oil passes across the two shaft face seal surfaces as they seal against refrigerant leakage, and excess oil collects in the seal cavity reservoir 41 , and passes to the lip seal/crank-shaft interface when the oil level exceeds the reservoir capacity.
  • reservoir 41 is formed by a recess 46 provided around and, most importantly, at the base of the lip seal 38 , in the gland plate 32 to collect the excess oil.
  • the recess 46 is provided in the preferred embodiment by an extension of diameter A, such that with lip seal 38 installed in diameter B, a portion of its body 47 extends into diameter A, as shown in FIGS. 2 and 3 , causing the enlarged ring-shaped space 40 .
  • the circumference of space 40 is formed by diameter A, around the lip seal body portion 47 .
  • a passage 50 is provided in gland plate 32 that leads to a second passage (not shown) in housing 12 , for drainage of the excess oil.
  • Passage 50 is located at a height and angle such that the excess oil 51 in the bottom 52 of space 40 adequately lubricates the lip seal without over-saturating. Accordingly, in the preferred embodiment, passage 50 is positioned at approximately a 45° angle with the first corner 53 of the entrance 54 of the passage located at a height H above inner circumference 56 of the lip seal. Accordingly, the oil will be maintained at a constant level within space 48 to achieve the necessary lubrication while not over-saturating the lip seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Sealing Of Bearings (AREA)
US10/307,688 2002-12-02 2002-12-02 Lip seal lubrication reservoir and method of level control Abandoned US20080169157A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/307,688 US20080169157A1 (en) 2002-12-02 2002-12-02 Lip seal lubrication reservoir and method of level control
KR1020030081308A KR100561138B1 (ko) 2002-12-02 2003-11-18 립 시일 윤활 저장조 및 수위 제어 방법
EP03257418A EP1426618B1 (en) 2002-12-02 2003-11-25 Lip seal lubrification reservoir and method of level control
DE60331718T DE60331718D1 (de) 2002-12-02 2003-11-25 Lippendichtringschmierungsbehälter und Niveauregelanlage dafür
JP2003401017A JP2004183655A (ja) 2002-12-02 2003-12-01 潤滑装置
CNB2003101187816A CN100422562C (zh) 2002-12-02 2003-12-02 润滑曲轴唇形密封件的系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/307,688 US20080169157A1 (en) 2002-12-02 2002-12-02 Lip seal lubrication reservoir and method of level control

Publications (1)

Publication Number Publication Date
US20080169157A1 true US20080169157A1 (en) 2008-07-17

Family

ID=32312203

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/307,688 Abandoned US20080169157A1 (en) 2002-12-02 2002-12-02 Lip seal lubrication reservoir and method of level control

Country Status (6)

Country Link
US (1) US20080169157A1 (ja)
EP (1) EP1426618B1 (ja)
JP (1) JP2004183655A (ja)
KR (1) KR100561138B1 (ja)
CN (1) CN100422562C (ja)
DE (1) DE60331718D1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070169998A1 (en) * 2004-01-20 2007-07-26 Kone Corporation Device for sealing escalator or moving walkway drives
EP2423506A1 (en) 2010-08-31 2012-02-29 Nuovo Pignone S.p.A. Reciprocating compressor having an oil pump
US9897211B2 (en) 2012-12-31 2018-02-20 Thermo King Corporation Device and method for extending the lifespan of a shaft seal for an open-drive compressor
US10718375B2 (en) 2016-05-16 2020-07-21 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation
US11473626B2 (en) 2016-05-16 2022-10-18 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3511568B1 (en) * 2018-01-10 2022-03-23 Robert Bosch GmbH Shaft seal arrangement and radial piston machine
US20220025876A1 (en) * 2018-12-07 2022-01-27 Officine Mario Dorin S.P.A. Compressor
CN114704455B (zh) * 2022-04-02 2023-06-16 泗洪亿成机械制造有限公司 空气压缩机曲轴箱箱体

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838942A (en) * 1971-07-30 1974-10-01 Mitchell J Co Refrigeration compressor
US3945765A (en) * 1974-04-15 1976-03-23 Sankyo Electric Co., Ltd. Refrigerant compressor
US4019342A (en) * 1975-03-13 1977-04-26 Cegedur Societe De Transformation De L'aluminium Pechiney Compressor for a refrigerant gas
US4095921A (en) * 1976-10-14 1978-06-20 Sankyo Electric Co., Ltd. Multi-cylinder compressor having spaced arrays of cylinders
US4236878A (en) * 1978-09-29 1980-12-02 Sankyo Electric Company Limited Lubrication system for compressor unit
US4290345A (en) * 1978-03-17 1981-09-22 Sankyo Electric Company Limited Refrigerant compressors
US4444549A (en) * 1980-08-04 1984-04-24 Sanden Corporation Refrigerant compressor
US4491331A (en) * 1981-12-23 1985-01-01 Hughes Tool Company Grooved mechanical face seal
US4538975A (en) * 1983-08-16 1985-09-03 Sanden Corporation Scroll type compressor with lubricating system
US4755115A (en) * 1984-11-21 1988-07-05 Atsugi Motor Parts Company, Limited Shaft seal assembly for compressor
US5899460A (en) * 1995-09-22 1999-05-04 Rexnord Corporation Refrigeration compressor seal
US6129533A (en) * 1998-04-11 2000-10-10 Joh. Heinr. Bornemann Gmbh Sealing system for rotating component of a pump
US20020041809A1 (en) * 2000-10-10 2002-04-11 Kabushiki Kaisha Toyota Jidoshokki Compressor having seal cooling structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215090A (ja) * 1992-02-05 1993-08-24 Daikin Ind Ltd 横型開放圧縮機
US5692756A (en) * 1995-09-22 1997-12-02 Rexnord Corporation Refrigeration compressor and compressor seal
JPH09324776A (ja) * 1996-06-07 1997-12-16 Seiko Seiki Co Ltd 気体圧縮機
DE10149010A1 (de) * 2001-10-04 2003-04-30 Volkswagen Ag Taumelscheibenkompressor

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838942A (en) * 1971-07-30 1974-10-01 Mitchell J Co Refrigeration compressor
US3945765A (en) * 1974-04-15 1976-03-23 Sankyo Electric Co., Ltd. Refrigerant compressor
US4019342A (en) * 1975-03-13 1977-04-26 Cegedur Societe De Transformation De L'aluminium Pechiney Compressor for a refrigerant gas
US4095921A (en) * 1976-10-14 1978-06-20 Sankyo Electric Co., Ltd. Multi-cylinder compressor having spaced arrays of cylinders
US4290345A (en) * 1978-03-17 1981-09-22 Sankyo Electric Company Limited Refrigerant compressors
US4236878A (en) * 1978-09-29 1980-12-02 Sankyo Electric Company Limited Lubrication system for compressor unit
US4444549A (en) * 1980-08-04 1984-04-24 Sanden Corporation Refrigerant compressor
US4491331A (en) * 1981-12-23 1985-01-01 Hughes Tool Company Grooved mechanical face seal
US4538975A (en) * 1983-08-16 1985-09-03 Sanden Corporation Scroll type compressor with lubricating system
US4755115A (en) * 1984-11-21 1988-07-05 Atsugi Motor Parts Company, Limited Shaft seal assembly for compressor
US5899460A (en) * 1995-09-22 1999-05-04 Rexnord Corporation Refrigeration compressor seal
US6129533A (en) * 1998-04-11 2000-10-10 Joh. Heinr. Bornemann Gmbh Sealing system for rotating component of a pump
US20020041809A1 (en) * 2000-10-10 2002-04-11 Kabushiki Kaisha Toyota Jidoshokki Compressor having seal cooling structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070169998A1 (en) * 2004-01-20 2007-07-26 Kone Corporation Device for sealing escalator or moving walkway drives
US7992684B2 (en) * 2004-01-20 2011-08-09 Kone Corporation Device for sealing escalator or moving walkway drives
EP2423506A1 (en) 2010-08-31 2012-02-29 Nuovo Pignone S.p.A. Reciprocating compressor having an oil pump
US9528509B2 (en) 2010-08-31 2016-12-27 Nuovo Pignone S.P.A. Reciprocating compressor crankshaft adapter and method
US9897211B2 (en) 2012-12-31 2018-02-20 Thermo King Corporation Device and method for extending the lifespan of a shaft seal for an open-drive compressor
US20180163871A1 (en) * 2012-12-31 2018-06-14 Thermo King Corporation Device and method for extending the lifespan of a shaft seal for an open-drive compressor
US10801623B2 (en) * 2012-12-31 2020-10-13 Thermo King Corporation Device and method for extending the lifespan of a shaft seal for an open-drive compressor
US10718375B2 (en) 2016-05-16 2020-07-21 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation
US11473626B2 (en) 2016-05-16 2022-10-18 Roller Bearing Company Of America, Inc. Bearing system with self-lubrication features, seals, grooves and slots for maintenance-free operation

Also Published As

Publication number Publication date
KR100561138B1 (ko) 2006-03-15
EP1426618A3 (en) 2006-01-04
DE60331718D1 (de) 2010-04-29
EP1426618B1 (en) 2010-03-17
EP1426618A2 (en) 2004-06-09
CN1514135A (zh) 2004-07-21
CN100422562C (zh) 2008-10-01
KR20040048301A (ko) 2004-06-07
JP2004183655A (ja) 2004-07-02

Similar Documents

Publication Publication Date Title
KR900003716B1 (ko) 다기통 회전식 압축기
US4834627A (en) Compressor lubrication system including shaft seals
KR100268317B1 (ko) 압축기의 축 밀봉구조
US6336797B1 (en) Oiless rotary scroll air compressor air inlet valve
JPH0452473Y2 (ja)
EP1426618B1 (en) Lip seal lubrification reservoir and method of level control
US5348455A (en) Rotary compressor with rotation preventing pin
US20040113369A1 (en) Lip seal wear sleeve
EP3276173A1 (en) Refrigerant shaft seal and open refrigerant compressor equipped with refrigerant shaft seal
US20020176785A1 (en) Compressor provided with sliding bearing
US6321635B1 (en) Swash plate type compressor in which lubricating oil is effectively supplied to a shoe mechanism interposed between a piston and a swash plate
US6616144B2 (en) Mechanical seal with embedded lubrication
EP1416159B1 (en) Oil leak system for mechanical shaft seals
US20030024384A1 (en) Oil-less/oil free air brake compressors
US5380163A (en) Gas guiding mechanism in a piston type compressor
US20160116071A1 (en) Refrigerant compressor shaft seal
EP0945653A1 (en) Shaft sealing device and compressor
US10036381B2 (en) Compressor piston shape to reduce clearance volume
KR100736070B1 (ko) 압축기의 커넥팅로드 윤활구조
JP2019206954A (ja) エアコンプレッサ
EP1283360A2 (en) Structure of channel in variable displacement piston type compressor
KR19980024449A (ko) 압축기
KR20070018718A (ko) 밀폐형 회전식 압축기와 이를 사용한 냉동 사이클 장치
JPH10110675A (ja) 圧縮機
KR19990015512U (ko) 밀폐형 왕복동 압축기의 피스톤

Legal Events

Date Code Title Description
AS Assignment

Owner name: CARRIER CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WYKER, CHRISTOPHER A.;DUPPERTY, RONALD J.;WRIGHT, KENNETH A.;REEL/FRAME:014109/0042

Effective date: 20021121

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION