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IT1251217B - Hydraulically servo-assisted mechanical transmission for an automobile - Google Patents

Hydraulically servo-assisted mechanical transmission for an automobile

Info

Publication number
IT1251217B
IT1251217B ITTO910842A ITTO910842A IT1251217B IT 1251217 B IT1251217 B IT 1251217B IT TO910842 A ITTO910842 A IT TO910842A IT TO910842 A ITTO910842 A IT TO910842A IT 1251217 B IT1251217 B IT 1251217B
Authority
IT
Italy
Prior art keywords
controlled
cylinder
gearbox
mechanical transmission
moveable element
Prior art date
Application number
ITTO910842A
Other languages
Italian (it)
Inventor
Giuseppe Giusti
Original Assignee
Ferrari Spa
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 Ferrari Spa filed Critical Ferrari Spa
Priority to ITTO910842A priority Critical patent/IT1251217B/en
Publication of ITTO910842A0 publication Critical patent/ITTO910842A0/en
Publication of ITTO910842A1 publication Critical patent/ITTO910842A1/en
Application granted granted Critical
Publication of IT1251217B publication Critical patent/IT1251217B/en

Links

Landscapes

  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

Servo-assisted mechanical transmission 1 in which a mechanical gearbox 2 is coupled to a clutch 3 and to a hydraulic actuator 4 controlled by respective electric valves 34, 66, 67, 68, which are controlled by a switchbox 10 connected to a manual speed selection device 11; the actuator 4 coupled to the gearbox 3 has a moveable element 17 directly connected to a speed selection and engagement fork 20 of the gearbox 3 and is controlled by two actuator cylinders 21, 22, arranged at 90 degrees to each other, the first 21 of which performs the coupling of the speeds by translating the moveable element 17, which is positioned plunging coaxially inside the first cylinder 21, and a second cylinder 22 causing the moveable element 17 to rotate about the axis 23 of translation of same to accomplish the speed selection; the first cylinder 21 is controlled by corresponding proportional electric valves 34 which regulate the pressure with pressure control in delivery. <IMAGE>
ITTO910842A 1991-11-06 1991-11-06 Hydraulically servo-assisted mechanical transmission for an automobile IT1251217B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO910842A IT1251217B (en) 1991-11-06 1991-11-06 Hydraulically servo-assisted mechanical transmission for an automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910842A IT1251217B (en) 1991-11-06 1991-11-06 Hydraulically servo-assisted mechanical transmission for an automobile

Publications (3)

Publication Number Publication Date
ITTO910842A0 ITTO910842A0 (en) 1991-11-06
ITTO910842A1 ITTO910842A1 (en) 1993-05-06
IT1251217B true IT1251217B (en) 1995-05-04

Family

ID=11409693

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910842A IT1251217B (en) 1991-11-06 1991-11-06 Hydraulically servo-assisted mechanical transmission for an automobile

Country Status (1)

Country Link
IT (1) IT1251217B (en)

Also Published As

Publication number Publication date
ITTO910842A1 (en) 1993-05-06
ITTO910842A0 (en) 1991-11-06

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971127