GB1133721A - Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages - Google Patents

Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages

Info

Publication number
GB1133721A
GB1133721A GB392765A GB392765A GB1133721A GB 1133721 A GB1133721 A GB 1133721A GB 392765 A GB392765 A GB 392765A GB 392765 A GB392765 A GB 392765A GB 1133721 A GB1133721 A GB 1133721A
Authority
GB
United Kingdom
Prior art keywords
throttle
lever
spindle
arm
depressed
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
GB392765A
Inventor
Dominic Paul Edmund Barnard
Brian Lionel Hunt Bishop
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB392765A priority Critical patent/GB1133721A/en
Priority to DES55647U priority patent/DE1975528U/en
Priority to JP483266A priority patent/JPS511812B1/ja
Publication of GB1133721A publication Critical patent/GB1133721A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/12—External control gear, e.g. having dash-pots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages

Abstract

1,133,721. I. C. engine throttle valve linkages. SMITHS INDUSTRIES Ltd. Jan. 21, 1966 [Jan. 29, 1965 (2); May 21, 1965; Jan. 10, 1966], Nos. 3927/65; 3928/65; 21535/65 and 1125/66. Heading F1B. [Also in Division F2] A continuously variable-ratio transmission device is included in a pedal/throttle valve linkage so that for a given movement of a cable inner 4, Fig. 1, adapted to be operatively connected to a throttle valve spindle 7, the angular movement of valve spindle 7 is greater at large valve openings than at small valve openings. When the throttle pedal is depressed cable inner 4 is moved upwardly rotating cam 1 and spindle 7 in the anti-clockwise direction. Other embodiments operate as follows: - Fig.2 (not shown). A cable inner (15) is attached to a shaped lever (13) which engages a shaped lever (16) fixed to a butterfly valve spindle (17). When the throttle pedal is depressed the inner (15) rotates lever (13) in the clockwise direction thereby rotating lever (16) in the anti-clockwise direction. Fig.3. The cable inner 30 is connected to a curved lever 27 which is welded to a pivot pin 25 and engages an oppositely-curved lever 28. The latter lever is welded to a pivot pin 26 and is connected through a link 33 to the throttle valve spindle. When the throttle valve is depressed levers 27 and 28 are respectively rotated about pins 25 and 26, the point of engagement between the levers 27 and 28 moving so as to vary the transmission ratio. Fig.6 (not shown). The cable inner (48) is connected to one end of a curved lever (44) which has indentations (51) meshing with teeth (50) in a trough-like bracket (41). The opposite end of lever (44) is connected to the throttle spindle through a link (47). When the throttle pedal is depressed the lever (44) rolls along the bracket (41) so as to vary the transmission ratio. Fig.8. The cable inner 108 passes around a pulley 106 to an attachment point 107 located adjacent the periphery and which coincides with the mounting of the pulley on arm 111 which is secured to the butterfly valve spindle. When the throttle pedal is depressed the cable inner 108 moves the pulley 106 towards the fixing point of the cable outer 101. This causes rotation of the pulley 106 and rotation of the arm 111, the combined effect of which varies the transmission ratio. Fig. 11. The cable inner 123 is attached to a point lying on the throttle spindle axis 124. The cable outer 125 is attached to a sleeve (129) Fig. 10 (not shown) which is carried by a pivoted U-shaped arm 128. A link 120 is pivotally-mounted on sleeve 129 and is connected to an arm 121 attached to the throttle spindle. The longer limb (130) of arm 128 is carried by an axial slot in a moulded member 132 which is rotatably mounted on plate 126. Member 132 has a serrated disc (135) Fig. 12 (not shown) which is engaged by a spring to retain the device in a datum position. When the throttle pedal is depressed the cable outer 125 moves away from the throttle spindle axis 124. An extension 122 of link 120 is held in engagement with arm 128 by a light spring. Link 120 is moved and rotated and thereby rotates the arm 121 to vary the transmission ratio.
GB392765A 1965-01-29 1965-01-29 Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages Expired GB1133721A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB392765A GB1133721A (en) 1965-01-29 1965-01-29 Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages
DES55647U DE1975528U (en) 1965-01-29 1966-01-26 TRANSMISSION DEVICE WITH VARIABLE TRANSMISSION RATIO, IN PARTICULAR FOR REGULATING THE FUEL SUPPLY IN COMBUSTION MACHINES.
JP483266A JPS511812B1 (en) 1965-01-29 1966-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB392765A GB1133721A (en) 1965-01-29 1965-01-29 Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages

Publications (1)

Publication Number Publication Date
GB1133721A true GB1133721A (en) 1968-11-13

Family

ID=9767523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB392765A Expired GB1133721A (en) 1965-01-29 1965-01-29 Improvements in or relating to variable ratio transmission devices for incorporation in throttle linkages

Country Status (1)

Country Link
GB (1) GB1133721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189190A2 (en) * 1985-01-24 1986-07-30 Mazda Motor Corporation Throttle valve control system for internal combustion engine
GB2322909A (en) * 1997-03-07 1998-09-09 Jan Piotr Tchorzewski Reduction mechanism for throttle linkages, eg for motorcycles
EP1479891A2 (en) * 2003-05-22 2004-11-24 Bayerische Motoren Werke Aktiengesellschaft Device for working a throttle valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189190A2 (en) * 1985-01-24 1986-07-30 Mazda Motor Corporation Throttle valve control system for internal combustion engine
EP0189190A3 (en) * 1985-01-24 1987-12-09 Mazda Motor Corporation Throttle valve control system for internal combustion engine
GB2322909A (en) * 1997-03-07 1998-09-09 Jan Piotr Tchorzewski Reduction mechanism for throttle linkages, eg for motorcycles
EP1479891A2 (en) * 2003-05-22 2004-11-24 Bayerische Motoren Werke Aktiengesellschaft Device for working a throttle valve
EP1479891A3 (en) * 2003-05-22 2004-12-22 Bayerische Motoren Werke Aktiengesellschaft Device for working a throttle valve

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