GB1508312A - Seals - Google Patents

Seals

Info

Publication number
GB1508312A
GB1508312A GB34542/74A GB3454274A GB1508312A GB 1508312 A GB1508312 A GB 1508312A GB 34542/74 A GB34542/74 A GB 34542/74A GB 3454274 A GB3454274 A GB 3454274A GB 1508312 A GB1508312 A GB 1508312A
Authority
GB
United Kingdom
Prior art keywords
oil
piston
rod
ring
pump
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
GB34542/74A
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.)
Perkins Ltd
Original Assignee
Perkins Engines Ltd
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 Perkins Engines Ltd filed Critical Perkins Engines Ltd
Priority to GB34542/74A priority Critical patent/GB1508312A/en
Priority to DE19752535001 priority patent/DE2535001A1/en
Priority to SE7508861A priority patent/SE7508861L/en
Publication of GB1508312A publication Critical patent/GB1508312A/en
Expired legal-status Critical Current

Links

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
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
    • 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
    • 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
    • F16J15/56—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
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sealing Devices (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1508312 Fluid seals PERKINS ENGINES Ltd 30 July 1975 [6 Aug 1974] 34542/74 Heading F2B In a seal for the piston-rod of a hot gas engine, tapering of the gap between the piston-rod 4 and a pumping ring 8 produces hydrodynamic forces to pump oil from a spray 16 into a pressure chamber 6 on upward stroke of the piston-rod, a piston 13 formed on the rod first pumps oil through into the base of the gas space 2 to level 19 and then increases the leakage through the ring 8 to maintain the oil level. On the downstroke the oil may pass through a non-return valve 15 (Fig. 1), the ring bore may remain tapered throughout the cycle to allow loss of excess oil, the pump may be separate from the piston-rod or the ring may have an upper recess leading dynamically pumped oil to the gas space.
GB34542/74A 1974-08-06 1974-08-06 Seals Expired GB1508312A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB34542/74A GB1508312A (en) 1974-08-06 1974-08-06 Seals
DE19752535001 DE2535001A1 (en) 1974-08-06 1975-08-05 SEALING DEVICE FOR A MOVABLE BAR
SE7508861A SE7508861L (en) 1974-08-06 1975-08-06 SEAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34542/74A GB1508312A (en) 1974-08-06 1974-08-06 Seals

Publications (1)

Publication Number Publication Date
GB1508312A true GB1508312A (en) 1978-04-19

Family

ID=10366919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34542/74A Expired GB1508312A (en) 1974-08-06 1974-08-06 Seals

Country Status (3)

Country Link
DE (1) DE2535001A1 (en)
GB (1) GB1508312A (en)
SE (1) SE7508861L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111868370A (en) * 2018-01-17 2020-10-30 罗伯特·博世有限公司 Fuel delivery device for cryogenic fuels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60159858U (en) * 1984-03-31 1985-10-24 アイシン精機株式会社 Stirling engine rod seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111868370A (en) * 2018-01-17 2020-10-30 罗伯特·博世有限公司 Fuel delivery device for cryogenic fuels
CN111868370B (en) * 2018-01-17 2022-05-24 罗伯特·博世有限公司 Fuel delivery device for cryogenic fuels

Also Published As

Publication number Publication date
DE2535001A1 (en) 1976-02-19
SE7508861L (en) 1976-02-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee