GB1496986A - Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod - Google Patents

Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod

Info

Publication number
GB1496986A
GB1496986A GB927776A GB927776A GB1496986A GB 1496986 A GB1496986 A GB 1496986A GB 927776 A GB927776 A GB 927776A GB 927776 A GB927776 A GB 927776A GB 1496986 A GB1496986 A GB 1496986A
Authority
GB
United Kingdom
Prior art keywords
oil
chamber
pressure
rod
passage
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.)
Expired
Application number
GB927776A
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.)
United Stirling AB and Co
Original Assignee
United Stirling AB and Co
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 United Stirling AB and Co filed Critical United Stirling AB and Co
Priority to GB927776A priority Critical patent/GB1496986A/en
Publication of GB1496986A publication Critical patent/GB1496986A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/0535—Seals or sealing arrangements
    • 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
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
    • 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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • 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
    • F16J15/56—Other sealings for reciprocating rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2253/00—Seals
    • F02G2253/03—Stem seals

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Devices (AREA)

Abstract

1496986 Sealing UNITED STIRLING (SWEDEN) AB & CO 9 March 1976 09277/76 Heading F2B A reciprocating piston-rod 4 which extends from a chamber 2 containing gas at high pressure, through a wall 1 to a low pressure chamber 3, is sealed to prevent gas leakage, the seal comprising a scraper 16 to prevent lubricating oil from moving along the rod 4 to the chamber 2 and an oil collecting space 18 which is provided adjacent the scraper, the outlet from this space 18 being through a valve 21, 22 which allows the oil to pass through it only when the oil pressure in space 18 exceeds that of high pressure chamber 2. The seal also comprises a resilient sealing gland 11, of fibreglass-reinforced ptfe, pressed against the rod 4 by the wedging action of metal rings 12 and 13 under the influence of a spring 15, the spring _15 also pressing the scraper ring 16 against the rod by wedging between a spring support 17 and the ring 13. The chamber 7 containing the seal is at the pressure of chamber 2, fluctuations being damped by an 0-ring 6. Oil is supplied to rod 4 through a passage 10 to an annular groove 9. The valve comprises a membrane 21, pressure in chamber 7 acting on it, through a passage 25, to close oil outlet passage 23 against the pressure of oil acting on a smaller area on the other side of the membrane. The metal ring 13 has a pressure equalizing passage 27 through it, 0-rings 26 preventing oil leakage from passage 19.
GB927776A 1976-03-09 1976-03-09 Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod Expired GB1496986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB927776A GB1496986A (en) 1976-03-09 1976-03-09 Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB927776A GB1496986A (en) 1976-03-09 1976-03-09 Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod

Publications (1)

Publication Number Publication Date
GB1496986A true GB1496986A (en) 1978-01-05

Family

ID=9868873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB927776A Expired GB1496986A (en) 1976-03-09 1976-03-09 Construction comprising sealing means for preventing gas leakage along a reciprocating piston rod

Country Status (1)

Country Link
GB (1) GB1496986A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386689A1 (en) * 1977-04-07 1978-11-03 United Stirling Ab & Co DOUBLE ACTING MULTI-CYLINDER HOT GAS ENGINE
WO1980001306A1 (en) * 1978-12-12 1980-06-26 United Stierling Ab & Co Piston rod seal
EP0325305A2 (en) * 1983-01-19 1989-07-26 Swagelok Quick-Connect Co. Coupling
CN102359597A (en) * 2011-09-04 2012-02-22 陈发谦 Oil sealing device for compression end of supercharger
CN104969452A (en) * 2013-01-25 2015-10-07 株式会社Iai Actuator
CN108035725A (en) * 2017-11-24 2018-05-15 徐工集团凯宫重工南京有限公司 A kind of shield machine and its anti-clogging foam mouth device
WO2020159423A1 (en) * 2019-01-29 2020-08-06 Azelio Ab Improved rod seal assemblies for machines with crossheads and sealed oscillating rods
CN112283354A (en) * 2020-11-16 2021-01-29 宁波方力密封件有限公司 Sealing device and application thereof
CN112943476A (en) * 2019-12-11 2021-06-11 中国科学院理化技术研究所 Linear electric motor's piston buffer stop and linear electric motor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386689A1 (en) * 1977-04-07 1978-11-03 United Stirling Ab & Co DOUBLE ACTING MULTI-CYLINDER HOT GAS ENGINE
WO1980001306A1 (en) * 1978-12-12 1980-06-26 United Stierling Ab & Co Piston rod seal
FR2444211A1 (en) * 1978-12-12 1980-07-11 United Stirling Ab & Co
EP0325305A2 (en) * 1983-01-19 1989-07-26 Swagelok Quick-Connect Co. Coupling
EP0325305A3 (en) * 1983-01-19 1990-08-01 Swagelok Quick-Connect Co. Coupling
CN102359597A (en) * 2011-09-04 2012-02-22 陈发谦 Oil sealing device for compression end of supercharger
CN104969452A (en) * 2013-01-25 2015-10-07 株式会社Iai Actuator
EP2950428A4 (en) * 2013-01-25 2016-02-17 Iai Corp Actuator
CN108035725A (en) * 2017-11-24 2018-05-15 徐工集团凯宫重工南京有限公司 A kind of shield machine and its anti-clogging foam mouth device
CN108035725B (en) * 2017-11-24 2024-04-12 徐工集团凯宫重工南京有限公司 Shield machine and anti-blocking foam port device thereof
WO2020159423A1 (en) * 2019-01-29 2020-08-06 Azelio Ab Improved rod seal assemblies for machines with crossheads and sealed oscillating rods
CN112943476A (en) * 2019-12-11 2021-06-11 中国科学院理化技术研究所 Linear electric motor's piston buffer stop and linear electric motor
CN112283354A (en) * 2020-11-16 2021-01-29 宁波方力密封件有限公司 Sealing device and application thereof

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee