IT1229429B - Hydraulic connection and control unit for tractor and trailer - Google Patents

Hydraulic connection and control unit for tractor and trailer

Info

Publication number
IT1229429B
IT1229429B IT8920763A IT2076389A IT1229429B IT 1229429 B IT1229429 B IT 1229429B IT 8920763 A IT8920763 A IT 8920763A IT 2076389 A IT2076389 A IT 2076389A IT 1229429 B IT1229429 B IT 1229429B
Authority
IT
Italy
Prior art keywords
tractor
trailer
control unit
hydraulic connection
braking
Prior art date
Application number
IT8920763A
Other languages
Italian (it)
Other versions
IT8920763A0 (en
Inventor
Atanasio Paganini
Original Assignee
Atanasio Paganini
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 Atanasio Paganini filed Critical Atanasio Paganini
Priority to IT8920763A priority Critical patent/IT1229429B/en
Publication of IT8920763A0 publication Critical patent/IT8920763A0/en
Priority to ES90109541T priority patent/ES2066904T3/en
Priority to DE69014235T priority patent/DE69014235T2/en
Priority to AT90109541T priority patent/ATE114278T1/en
Priority to EP90109541A priority patent/EP0400432B1/en
Application granted granted Critical
Publication of IT1229429B publication Critical patent/IT1229429B/en

Links

Abstract

The hydraulic connection and control unit has a body (1,2) with a valve (69) mounted against a spring (60,67) and intercepting a delivery aperture (73A) when the trailer is separated from the tractor. When the trailer is connected to the tractor the valve frees the aperture and moves the control (20) enabling the pump, on braking the tractor, to raise the pressure of the brake fluid for the trailer braking system to the value required for braking the tractor.$ The control is held within a chamber (19) which is connected via ducts (5,18) to the body (1,2).$
IT8920763A 1989-06-02 1989-06-02 Hydraulic connection and control unit for tractor and trailer IT1229429B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8920763A IT1229429B (en) 1989-06-02 1989-06-02 Hydraulic connection and control unit for tractor and trailer
ES90109541T ES2066904T3 (en) 1989-06-02 1990-05-19 DEVICE TO ESTABLISH THE HYDRAULIC CONNECTION AND THE CONTROL BETWEEN A TRACTOR DRIVING CIRCUIT AND THE TRAILER BRAKING SYSTEM.
DE69014235T DE69014235T2 (en) 1989-06-02 1990-05-19 Device for establishing a hydraulic connection and for controlling between a tractor working group and the braking system of a trailer.
AT90109541T ATE114278T1 (en) 1989-06-02 1990-05-19 DEVICE FOR ESTABLISHING A HYDRAULIC CONNECTION AND CONTROL BETWEEN A TRACTOR WORKING CIRCUIT AND THE BRAKING SYSTEM OF A TRAILER.
EP90109541A EP0400432B1 (en) 1989-06-02 1990-05-19 Device for providing hydraulic connection and control between a tractor operating circuit and the braking system of a trailer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920763A IT1229429B (en) 1989-06-02 1989-06-02 Hydraulic connection and control unit for tractor and trailer

Publications (2)

Publication Number Publication Date
IT8920763A0 IT8920763A0 (en) 1989-06-02
IT1229429B true IT1229429B (en) 1991-08-08

Family

ID=11171708

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920763A IT1229429B (en) 1989-06-02 1989-06-02 Hydraulic connection and control unit for tractor and trailer

Country Status (1)

Country Link
IT (1) IT1229429B (en)

Also Published As

Publication number Publication date
IT8920763A0 (en) 1989-06-02

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Legal Events

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

Effective date: 19970527