GB619866A - Improved reversible speed-reduction gear for ship propulsion - Google Patents

Improved reversible speed-reduction gear for ship propulsion

Info

Publication number
GB619866A
GB619866A GB7123/46A GB712346A GB619866A GB 619866 A GB619866 A GB 619866A GB 7123/46 A GB7123/46 A GB 7123/46A GB 712346 A GB712346 A GB 712346A GB 619866 A GB619866 A GB 619866A
Authority
GB
United Kingdom
Prior art keywords
ahead
shaft
pinion
coupling
double
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
GB7123/46A
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.)
Fairfield Shipbuilding and Engineering Co Ltd
Original Assignee
Fairfield Shipbuilding and Engineering 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
Application filed by Fairfield Shipbuilding and Engineering Co Ltd filed Critical Fairfield Shipbuilding and Engineering Co Ltd
Priority to GB7123/46A priority Critical patent/GB619866A/en
Publication of GB619866A publication Critical patent/GB619866A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/08—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing with provision for reversing drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/26—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • B63H2023/342—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts comprising couplings, e.g. resilient couplings; Couplings therefor

Abstract

619,866. Reversing gearing; clutches. FAIRFIELD SHIPBUILDING & ENGINEERING CO., Ltd., and DAVIS, A. W. March 7, 1946, Nos. 7123 and 18334. [Class 80 (ii)] Reversing gearing for ship propulsion comprises a double hydraulic coupling 42, 43, operable to couple a high-speed driving shaft 10 to a low speed propeller shaft 11 through either an astern pinion 30 or a double reduction layshaft gearing 15, 32, 33, 34. The astern pinion shaft 13 and the primary ahead pinion 15 are arranged as co-axial extensions of the driving shaft 10, the pinion 15 having a central quill shaft 12 directly connected to the two driving members 26, 27 of the double coupling. A sliding dog clutch member 22 connects a clutch member 20 on the driving shaft 10 with a similar member 16 on the quill shaft 12 at all times and is selectively engageable with a clutch member 17 rigid with the ahead pinion 15 to byepass the ahead fluid coupling for normal running. Spring loaded friction pads 58 are provided on the members 17 to assist in the shock free engagement of the dog teeth. The double hydraulic coupling comprises the two driving members 26, 27 rigid with the shaft 12 and the two driven members 28, 29 rigid respectively with the ahead and astern pinions, oil for the operation of the couplings being supplied along the hollow shafts and being exhausted from the inoperative coupling. Two slide valves 51, 52, selectively control the outlet of oil from the couplings and are moved axially by the rotation of a camplate 54 which engages the slots 55 in the bars 53 connecting the valves. Thus by actuation of the valves 51, 52 and the clutch sleeve 22 the gearing provides double reduction ahead positive drive for normal use, double reduction ahead through the fluid coupling for manoeuvring, and single reduction reverse through a fluid coupling. According to the first Provisional Specification the fluid coupling may be either electric, hydraulic or pneumatic.
GB7123/46A 1946-03-07 1946-03-07 Improved reversible speed-reduction gear for ship propulsion Expired GB619866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7123/46A GB619866A (en) 1946-03-07 1946-03-07 Improved reversible speed-reduction gear for ship propulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7123/46A GB619866A (en) 1946-03-07 1946-03-07 Improved reversible speed-reduction gear for ship propulsion

Publications (1)

Publication Number Publication Date
GB619866A true GB619866A (en) 1949-03-16

Family

ID=9827053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7123/46A Expired GB619866A (en) 1946-03-07 1946-03-07 Improved reversible speed-reduction gear for ship propulsion

Country Status (1)

Country Link
GB (1) GB619866A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535904A (en) * 1946-03-07 1950-12-26 Fairfield Shipbuilding And Eng Reversible speed-reduction gear for ship propulsion
US2568275A (en) * 1948-11-24 1951-09-18 Josef Y Dahlstrand Power transmission unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535904A (en) * 1946-03-07 1950-12-26 Fairfield Shipbuilding And Eng Reversible speed-reduction gear for ship propulsion
US2568275A (en) * 1948-11-24 1951-09-18 Josef Y Dahlstrand Power transmission unit

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