GB759375A - Improvements in or relating to a piston seal for a hydraulic actuator - Google Patents

Improvements in or relating to a piston seal for a hydraulic actuator

Info

Publication number
GB759375A
GB759375A GB25813/53A GB2581353A GB759375A GB 759375 A GB759375 A GB 759375A GB 25813/53 A GB25813/53 A GB 25813/53A GB 2581353 A GB2581353 A GB 2581353A GB 759375 A GB759375 A GB 759375A
Authority
GB
United Kingdom
Prior art keywords
groove
hydraulic actuator
actuator
relating
piston
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
GB25813/53A
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.)
Northrop Grumman Corp
Original Assignee
Northrop Grumman 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 Northrop Grumman Corp filed Critical Northrop Grumman Corp
Publication of GB759375A publication Critical patent/GB759375A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
    • B64C13/24—Transmitting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Actuator (AREA)

Abstract

759,375. Pistons; piston rods. NORTHROP AIRCRAFT, Inc. Sept. 18, 1953 [Sept. 19, 1952], No. 25813/53. Class 122(1) [Also in Groups XXIX and XXXIII] A double-acting piston 39 in a hydraulic actuator has two sealing rings in grooves 50, 51 with a third groove 52 between them, the groove 52 being vented to a pressure less than that operating the actuator so that the rings are always pressed towards the groove 52 and eliminate "time-lag" in the movement of the actuator. The groove 52 is connected by holes 54 to a bore 49 in the rod of the piston and a vent 55 to the atmosphere is provided.
GB25813/53A 1952-09-19 1953-09-18 Improvements in or relating to a piston seal for a hydraulic actuator Expired GB759375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US759375XA 1952-09-19 1952-09-19

Publications (1)

Publication Number Publication Date
GB759375A true GB759375A (en) 1956-10-17

Family

ID=22128877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25813/53A Expired GB759375A (en) 1952-09-19 1953-09-18 Improvements in or relating to a piston seal for a hydraulic actuator

Country Status (1)

Country Link
GB (1) GB759375A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170284427A1 (en) * 2016-04-04 2017-10-05 The Boeing Company Actuator having an internal conductive path
EP4293237A1 (en) 2022-06-17 2023-12-20 Microtecnica S.r.l. Actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170284427A1 (en) * 2016-04-04 2017-10-05 The Boeing Company Actuator having an internal conductive path
US10458443B2 (en) * 2016-04-04 2019-10-29 The Boeing Company Actuator having an internal conductive path
US10995776B2 (en) 2016-04-04 2021-05-04 The Boeing Company Actuator having an internal conductive path
EP4293237A1 (en) 2022-06-17 2023-12-20 Microtecnica S.r.l. Actuator

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