[go: up one dir, main page]

FR2427882A1 - Marteau pneumatique perfectionne - Google Patents

Marteau pneumatique perfectionne

Info

Publication number
FR2427882A1
FR2427882A1 FR7912427A FR7912427A FR2427882A1 FR 2427882 A1 FR2427882 A1 FR 2427882A1 FR 7912427 A FR7912427 A FR 7912427A FR 7912427 A FR7912427 A FR 7912427A FR 2427882 A1 FR2427882 A1 FR 2427882A1
Authority
FR
France
Prior art keywords
movable element
pneumatic hammer
improved pneumatic
axial
hammer
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.)
Withdrawn
Application number
FR7912427A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2427882A1 publication Critical patent/FR2427882A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/02—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously of the tool-carrier piston type, i.e. in which the tool is connected to an impulse member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Actuator (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

La présente invention a pour objet un marteau pneumatique perfectionné. Ce marteau étant caractérisé en ce que ledit élément mobile comporte deux passages axiaux aboutissant, le premier, sur la base supérieure de l'élément mobile et, le deuxième, sur la face inférieure de l'élément mobile; en ce que le premier passage axial communique par un conduit de dérivation avec la surface extérieure de l'élément mobile, en correspondance avec la source inférieure de cet élément, en ce que, en outre, ledit deuxième passage axial est mis en communication par un deuxième et un troisième conduit de dérivation avec la surface extérieure dudit élément mobile en correspondance avec la zone intermédiaire ou la zone supérieure respectivement de ladite surface latérale; en ce que sur la surface interne cylindrique de la chambre cylindrique sont disposés deux conduits de communication respectivement avec une source du fluide sous pression et avec l'atmosphère, la distance entre lesdits deux conduits de la chambre cylindrique étant substantiellement égale à la distance axiale entre le premier et le troisième conduit de l'élément mobile. La présente invention a pour objet un marteau pneumatique perfectionné.
FR7912427A 1978-06-07 1979-05-16 Marteau pneumatique perfectionne Withdrawn FR2427882A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1265078A IT1103805B (it) 1978-06-07 1978-06-07 Martello pneumatico perfezionato

Publications (1)

Publication Number Publication Date
FR2427882A1 true FR2427882A1 (fr) 1980-01-04

Family

ID=11142487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912427A Withdrawn FR2427882A1 (fr) 1978-06-07 1979-05-16 Marteau pneumatique perfectionne

Country Status (3)

Country Link
FR (1) FR2427882A1 (fr)
GB (1) GB2027493A (fr)
IT (1) IT1103805B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477067A1 (fr) * 1990-09-15 1992-03-25 Zhi-Guo Dang Mécanisme de percussion très efficace avec valve à piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477067A1 (fr) * 1990-09-15 1992-03-25 Zhi-Guo Dang Mécanisme de percussion très efficace avec valve à piston

Also Published As

Publication number Publication date
IT7812650A0 (it) 1978-07-07
IT1103805B (it) 1985-10-14
GB2027493A (en) 1980-02-20

Similar Documents

Publication Publication Date Title
FR2438184A1 (fr) Assemblage de commutation fluidique
FR2368304A1 (fr) Atomiseur perfectionne
NO845088L (no) Bevegelseskompensator og fortoeyningsanordning.
JPS52112119A (en) Valve device especially valve device assembled at fuel pipe positioned between pump and burnur nozzle
IT1055179B (it) Procedimento di alimentazione concoburente gassoso di un bruciatore a combustile fluido la cui aper tura di distribuzione del comburente sfocia in una camera di combustione e dispositivo per l attuazione di tale procedimento
GB1304763A (fr)
FR2448420A1 (fr) Marteau piqueur a moyens d'amortissement des vibrations dues au recul
FR2429320A1 (fr) Appareil de foration hydraulique roto-percutant
FR2427882A1 (fr) Marteau pneumatique perfectionne
FR2426889A1 (fr) Capteur de debit de fluide hydraulique, notamment pour la commande de verins hydrauliques
IT1079220B (it) Polverizzatore per una valvola d'iniezione del combustibile di un motore endotermico a stantuffo
FR2431728A1 (fr) Regulateur de pression pour des gaz combustibles, en particulier pour moteurs a combustion interne
IT1183123B (it) Valvola per l'installazione in una curva di una tubazione per fluido di un motore termico
FR2455674A1 (fr) Dispositif d'etancheite entre deux elements de turbomachine
FR2406721A1 (fr) Moteur a combustion interne a piston alternatif
FR2398949A1 (fr) Raccord tournant pour le passage d'huile hydraulique
DE3674712D1 (de) Drehender hydraulikzylinder.
BE857533A (fr) Vanne pour fluide sous hautes pressions
FR2367926A1 (fr) Injecteur de moteur a combustion interne
GB900383A (en) Improvements in or relating to auxiliary hoists
JPS57163706A (en) Multiple cylinder equipment
FR2303976A1 (fr) Perfectionnements apportes a l'alimentation des verins
ES8300960A1 (es) Perfeccionamientos en los servomotores con embolo diferen- cial
JPS55139948A (en) Seallup structure of pistonncylinder assembly
IT7850835A0 (it) Dispositivo regolatore di pressione di un fluido in una conduttura ad esempio per la alimentazione di combustibile in motori a combustione interna

Legal Events

Date Code Title Description
ST Notification of lapse