GB817854A - Apparatus for modulating brake pressure - Google Patents

Apparatus for modulating brake pressure

Info

Publication number
GB817854A
GB817854A GB26071/57A GB2607157A GB817854A GB 817854 A GB817854 A GB 817854A GB 26071/57 A GB26071/57 A GB 26071/57A GB 2607157 A GB2607157 A GB 2607157A GB 817854 A GB817854 A GB 817854A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
fluid
diaphragm
chamber
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
GB26071/57A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB817854A publication Critical patent/GB817854A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/42—Arrangement or adaptation of brakes
    • B64C25/44—Actuating mechanisms
    • B64C25/48—Actuating mechanisms differentially operated for steering purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

817,854. Fluid pressure brakes. GOODYEAR TIRE & RUBBER CO. Aug. 19, 1957 [Nov. 19, 1956], No. 26071/57. Class 103 (1). Apparatus for modulating the pressure applied to aircraft brakes comprises a source of pressure fluid, a pilot-controlled valve for applying the fluid to the brakes and a pressure regulating valve adjusted by means controlled by the aircraft speed relative to air for modulating the pressure applied by the pilotcontrolled valve. Pressure fluid is supplied from tank 9 via pump 10, pipe 11, and pressure regulator valve 12 to the pilot's control valve 13 operated by a pedal 20 to connect either the supply pipe 16 or exhaust pipe 18 to a pipe 17 and cylinders 6, 6<SP>1</SP> of a disc brake. Air pressure due to aircraft speed, acts through pitot head 2 to operate bellous-diaphragm 4 which through linkage 4a, 21, 25 moves bellows diaphragm 24 to change the pressure in capsule 23 and chamber 31 of cylinder 27, the other chamber 30 of cylinder 27, separated from chamber 31 by diaphragm 29, being kept at a constant pressure which can be adjusted by valve 41 graduated to represent the aircraft's gross weight, capsules 32, 33 and diaphragm 29 support a rod 34 connected by linkage 35, 38 to the plunger 37 of the regulator valve 12. Changes in aircraft speed produce changes in pressure in capsules 3 and 23 and chamber 31, resulting in movement of diaphragm 29 until pressure in chambers 30, 31 equalize, consequential movement of rod 34 adjusting regulator valve 12 to supply fluid at a pressure for the highest braking efficiency. The pressure ratios between capsules 3 and 23 and the linkage ratio between links 35 and 37 may be changed by nuts 44, 48 on rods 43, 47 pivoted to levers 25, 46 respectively, the nuts being graduated to represent the lift coefficient and runway coefficient of friction, respectively, and are adjusted by the pilot. Antiskid apparatus 51, 50, 52 may be used to operate a valve 53 to release fluid from cylinders 6, 6<SP>1</SP> on skidding.
GB26071/57A 1956-11-19 1957-08-19 Apparatus for modulating brake pressure Expired GB817854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US817854XA 1956-11-19 1956-11-19

Publications (1)

Publication Number Publication Date
GB817854A true GB817854A (en) 1959-08-06

Family

ID=22166389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26071/57A Expired GB817854A (en) 1956-11-19 1957-08-19 Apparatus for modulating brake pressure

Country Status (1)

Country Link
GB (1) GB817854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260324B (en) * 1964-05-04 1968-02-01 North American Aviation Inc Method for regulating the braking effect of hydraulically operated brakes on aircraft landing wheels
DE1271559B (en) * 1964-06-16 1968-06-27 Materiels Hispanao Suiza S A S Brake pressure control device for hydraulic vehicle wheel brakes, in particular aircraft landing wheel brakes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260324B (en) * 1964-05-04 1968-02-01 North American Aviation Inc Method for regulating the braking effect of hydraulically operated brakes on aircraft landing wheels
DE1271559B (en) * 1964-06-16 1968-06-27 Materiels Hispanao Suiza S A S Brake pressure control device for hydraulic vehicle wheel brakes, in particular aircraft landing wheel brakes

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