GB1473561A - Sealing between relatively rotatable members - Google Patents

Sealing between relatively rotatable members

Info

Publication number
GB1473561A
GB1473561A GB1954774A GB1954774A GB1473561A GB 1473561 A GB1473561 A GB 1473561A GB 1954774 A GB1954774 A GB 1954774A GB 1954774 A GB1954774 A GB 1954774A GB 1473561 A GB1473561 A GB 1473561A
Authority
GB
United Kingdom
Prior art keywords
seal
blade
coupling
rotor
pressure
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
GB1954774A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1473561A publication Critical patent/GB1473561A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/02—Radially-movable sealings for working fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Sealing Devices (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

1473561 Rotary positive-displacement fluidmachines W H BIBBENS 3 May 1974 [3 May 1973] 19547/74 Heading F1F In a Wankel-type I.C. engine each apex seal blade 124 of the rotor has on its leading side adjacent each end thereof a cam surface 178 on which a projection 195 formed on an arm 196 of an associated coupling seal 122 bears when, owing to friction between a portion 158 of the outer end surface of the coupling seal and the adjacent housing end-plate, the coupling seal pivots about its axis in a direction 52a. The seal blade also has at each end a cam surface 174 engaging with a cam surface 148 on a "retaining member" 120 fixed in the rotor. The pressure of the projections 195 on the surfaces 178 not only urges the seal blade radially outwards to hold it against the inner peripheral wall of the housing but also presses the coupling seals against the housing end-plates and moreover, centres the seal blade relative to the rotor end-surfaces. The seal blade is also urged towards the said wall by a spring 126. Springs 128 bias the coupling seals towards the housing endplates. The retaining member may be dispensed with, a groove for the seal blade and recesses for the coupling seals then being formed directly in the body of the rotor. The seal blade may have pressure-equalizing passages therein, Fig. 14A (not shown). The coupling seals may be modified so as to have projections formed on the leading walls of the seal-blade grooves therein and engaging with respective cam surfaces on the seal blades, the arms 196 being dispensed with, Figs. 23-26 (not shown). To obviate damage due to pressure pulses in the combustion region striking the seal blades the grooves for the latter may be inter-connected by passages in the rotor, Figs. 27-42 (not shown), the excess pressure being relieved through gaps between the seal blades and the groove walls, and the corresponding said passages, to a region at a lower pressure.
GB1954774A 1973-05-03 1974-05-03 Sealing between relatively rotatable members Expired GB1473561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356885A US3860365A (en) 1973-05-03 1973-05-03 Seals and methods and means of sealing for rotary engines and the like

Publications (1)

Publication Number Publication Date
GB1473561A true GB1473561A (en) 1977-05-18

Family

ID=23403366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1954774A Expired GB1473561A (en) 1973-05-03 1974-05-03 Sealing between relatively rotatable members

Country Status (9)

Country Link
US (1) US3860365A (en)
JP (1) JPS5048308A (en)
BR (1) BR7403610D0 (en)
CA (1) CA1011257A (en)
DE (1) DE2421495A1 (en)
FR (1) FR2238037B1 (en)
GB (1) GB1473561A (en)
IT (1) IT1011343B (en)
SE (1) SE403927B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128628A1 (en) * 2014-02-25 2015-09-03 Isis Innovation Limited Rotary engine seals

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961871A (en) * 1974-01-23 1976-06-08 Toyo Kogyo Co., Ltd. Corner seal means for rotary piston type engines
CA2081080C (en) * 1992-10-23 1998-08-11 Philippe Gaultier Method for the detection of reciprocating machine faults and failures
US6575719B2 (en) * 2000-07-27 2003-06-10 David B. Manner Planetary rotary machine using apertures, volutes and continuous carbon fiber reinforced peek seals
WO2003012257A1 (en) * 2001-07-27 2003-02-13 Manner David B A stirling machine utilizing a double action planetary machine
US8748071B2 (en) * 2007-11-30 2014-06-10 Ricoh Company, Ltd. Image forming method, toner and image forming apparatus
GB2464366B (en) * 2008-10-17 2013-01-02 Ip Consortium Ltd Seal assembly and method
US8597006B2 (en) 2011-07-28 2013-12-03 Pratt & Whitney Canada Corp. Apex seal for rotary internal combustion engine
US10344870B2 (en) 2011-07-28 2019-07-09 Pratt & Whitney Canada Corp. Apex seal arrangement for rotary internal combustion engine
US8851870B2 (en) * 2011-07-28 2014-10-07 Pratt & Whitney Canada Corp Gas seal arrangement for rotary internal combustion engine
US9927801B2 (en) 2012-05-11 2018-03-27 D.P. Technology Corp. Automatic method for milling complex channel-shaped cavities via coupling flank-milling positions
US8977382B2 (en) * 2012-05-11 2015-03-10 D.P. Technology Corp. Automatic method for milling complex channel-shaped cavities
CN110094276A (en) * 2019-04-30 2019-08-06 宁波大学 A kind of diaphragm seal of rotary polygonal piston engine
CN110925082B (en) * 2019-12-13 2021-10-22 李炳强 Blade rotary engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127095A (en) * 1964-03-31 Froede
US1831243A (en) * 1928-08-20 1931-11-10 Alvin L Hart Rotary fluid operated and operating device
DE1151413B (en) * 1960-08-29 1963-07-11 Nsu Motorenwerke Ag Sealing system for rotary piston machines
DE1255418B (en) * 1960-11-09 1967-11-30 Bayerische Motoren Werke Ag Radial seal for a rotary piston engine, in particular a rotary piston internal combustion engine
US3142439A (en) * 1961-05-10 1964-07-28 Nsu Motorenwerke Ag Sealing means for rotary engine
US3180561A (en) * 1961-06-07 1965-04-27 Nsu Motorenwerke Ag Non-jamming apex seal
GB1030505A (en) * 1962-04-02 1966-05-25 Kloeckner Humboldt Deutz Ag Rotary piston internal combustion engine
DE1189314B (en) * 1962-12-11 1965-03-18 Nsu Motorenwerke Ag Rotary piston engine, especially internal combustion engine
US3485217A (en) * 1967-10-03 1969-12-23 Outboard Marine Corp Apex seal for rotary combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128628A1 (en) * 2014-02-25 2015-09-03 Isis Innovation Limited Rotary engine seals
US10294791B2 (en) 2014-02-25 2019-05-21 Oxford University Innovation Limited Rotary engine seals

Also Published As

Publication number Publication date
AU6828874A (en) 1975-10-30
IT1011343B (en) 1977-01-20
CA1011257A (en) 1977-05-31
BR7403610D0 (en) 1974-12-24
DE2421495A1 (en) 1974-11-21
US3860365A (en) 1975-01-14
JPS5048308A (en) 1975-04-30
SE403927B (en) 1978-09-11
FR2238037A1 (en) 1975-02-14
FR2238037B1 (en) 1978-03-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee