GB1184233A - Improvements in and relating to Shaft Seals - Google Patents

Improvements in and relating to Shaft Seals

Info

Publication number
GB1184233A
GB1184233A GB4780866A GB4780866A GB1184233A GB 1184233 A GB1184233 A GB 1184233A GB 4780866 A GB4780866 A GB 4780866A GB 4780866 A GB4780866 A GB 4780866A GB 1184233 A GB1184233 A GB 1184233A
Authority
GB
United Kingdom
Prior art keywords
grooves
sealing
axis
sealing edge
shaft
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
GB4780866A
Inventor
Geoffrey Walton Halliday
Keith Broadbelt
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.)
George Angus and Co Ltd
Original Assignee
George Angus and Co 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
Priority to SE971367A priority Critical patent/SE308972B/xx
Application filed by George Angus and Co Ltd filed Critical George Angus and Co Ltd
Priority to US650503A priority patent/US3504919A/en
Priority to DE19671625906 priority patent/DE1625906B2/en
Publication of GB1184233A publication Critical patent/GB1184233A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

1,184,233. Shaft seals. GEORGE ANGUS & CO. Ltd. 30 June, 1967 [7 July, 1966; 25 Oct., 1966], Nos. 30359/67 and 47808/66. Divided out of 1,182,426. Heading F2B. In a shaft seal comprising an elastomeric sealing ring having a peripheral sealing surface for engaging a cylindrical surface to be sealed, the sealing surface has a zone which is incompletely circumferential with respect to the cylindrical surface and is formed with at least one ridge or groove extending completely around the zone. In the lip-type seal shown in Fig. 1 and having a flange 4 with a sealing edge 6 formed between two frusto-conical surfaces 7, 8, the surface 7 is formed with circular grooves 13 and the surface 8 is cut obliquely to the seal axis X-X so that the sealing edge 6 is elliptical and has two incompletely circumferential zones on each side of the circumference Y in which zones the ends 15 of the grooves are intercepted obliquely by the sealing edge. In a modification, Fig. 3, the grooves 13 are normal to the shaft axis X-X but the sealing edge is normal to an axis Z-Z slightly oblique to the axis X-X whereby the ends 15 of the grooves 13 are again obliquely intercepted by the sealing edge 6. In the seal shown in Fig. 5, right circular grooves 16 are moulded in the bore of a sealing bush 12 and one end 17 of the bush is cut to a sinuously curved profile. It is stated that in use the grooves 13, 16 act to oppose leakage by a feedback effect irrespective of the direction of rotation of the shaft.
GB4780866A 1966-07-07 1967-06-30 Improvements in and relating to Shaft Seals Expired GB1184233A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE971367A SE308972B (en) 1966-07-07 1967-06-29
US650503A US3504919A (en) 1966-10-25 1967-06-30 Shaft seals
DE19671625906 DE1625906B2 (en) 1966-07-07 1967-07-07 Shaft lip seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3035967 1967-06-30

Publications (1)

Publication Number Publication Date
GB1184233A true GB1184233A (en) 1970-03-11

Family

ID=10306415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4780866A Expired GB1184233A (en) 1966-07-07 1967-06-30 Improvements in and relating to Shaft Seals

Country Status (1)

Country Link
GB (1) GB1184233A (en)

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Legal Events

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