FR2415733A1 - Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice - Google Patents

Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice

Info

Publication number
FR2415733A1
FR2415733A1 FR7802284A FR7802284A FR2415733A1 FR 2415733 A1 FR2415733 A1 FR 2415733A1 FR 7802284 A FR7802284 A FR 7802284A FR 7802284 A FR7802284 A FR 7802284A FR 2415733 A1 FR2415733 A1 FR 2415733A1
Authority
FR
France
Prior art keywords
safety valve
spring loaded
rod extending
loaded piston
sleeve including
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.)
Granted
Application number
FR7802284A
Other languages
French (fr)
Other versions
FR2415733B1 (en
Inventor
Louis Claude Porel
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.)
Leduc & Fils Rene
Original Assignee
Leduc & Fils Rene
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 Leduc & Fils Rene filed Critical Leduc & Fils Rene
Priority to FR7802284A priority Critical patent/FR2415733A1/en
Publication of FR2415733A1 publication Critical patent/FR2415733A1/en
Application granted granted Critical
Publication of FR2415733B1 publication Critical patent/FR2415733B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B60P1/162—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms the hydraulic system itself

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The safety valve has an inlet port (2) for the hydraulic fluid which is admitted to the cylinder. The cylinder contains a spring loaded piston valve (10) with a bleed hole (13). The valve rests on the sides of the cylinder (7) which rests against the locating ring (15). The piston (5) has a push rod (6) and is loaded by the spring (9). The valve can be opened by applying hydraulic pressure through the port (20) to move the piston (5).
FR7802284A 1978-01-27 1978-01-27 Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice Granted FR2415733A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7802284A FR2415733A1 (en) 1978-01-27 1978-01-27 Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7802284A FR2415733A1 (en) 1978-01-27 1978-01-27 Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice

Publications (2)

Publication Number Publication Date
FR2415733A1 true FR2415733A1 (en) 1979-08-24
FR2415733B1 FR2415733B1 (en) 1981-01-16

Family

ID=9203883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802284A Granted FR2415733A1 (en) 1978-01-27 1978-01-27 Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice

Country Status (1)

Country Link
FR (1) FR2415733A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049482A1 (en) * 1980-10-07 1982-04-14 Joseph Chabot A lift system for raising the dump box of a dump truck
US4793590A (en) * 1983-04-14 1988-12-27 Gilmore Valve Company Piloted check valve
EP1359347A1 (en) * 2002-04-29 2003-11-05 Dronningborg Industries A/S Fluid operated actuator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723067A (en) * 2013-12-20 2014-04-16 一汽解放柳州特种汽车有限公司 Heavy-load hydraulic lifting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1609472A (en) * 1923-02-09 1926-12-07 Julius P Heil Oil-tank check valve
GB646217A (en) * 1947-12-22 1950-11-15 Bromilow & Edwards Ltd Improvements in safety valves for hydraulic pressure-operated devices and especiallyhydraulic tipping mechanism for vehicles
FR2333985A1 (en) * 1975-12-04 1977-07-01 Meiller Fahrzeuge CONTROL VALVE FOR HYDRAULICALLY ACTUATED TILTING VEHICLES

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1609472A (en) * 1923-02-09 1926-12-07 Julius P Heil Oil-tank check valve
GB646217A (en) * 1947-12-22 1950-11-15 Bromilow & Edwards Ltd Improvements in safety valves for hydraulic pressure-operated devices and especiallyhydraulic tipping mechanism for vehicles
FR2333985A1 (en) * 1975-12-04 1977-07-01 Meiller Fahrzeuge CONTROL VALVE FOR HYDRAULICALLY ACTUATED TILTING VEHICLES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049482A1 (en) * 1980-10-07 1982-04-14 Joseph Chabot A lift system for raising the dump box of a dump truck
US4793590A (en) * 1983-04-14 1988-12-27 Gilmore Valve Company Piloted check valve
EP1359347A1 (en) * 2002-04-29 2003-11-05 Dronningborg Industries A/S Fluid operated actuator

Also Published As

Publication number Publication date
FR2415733B1 (en) 1981-01-16

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Legal Events

Date Code Title Description
ST Notification of lapse