FR2377536A1 - System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration - Google Patents

System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration

Info

Publication number
FR2377536A1
FR2377536A1 FR7701056A FR7701056A FR2377536A1 FR 2377536 A1 FR2377536 A1 FR 2377536A1 FR 7701056 A FR7701056 A FR 7701056A FR 7701056 A FR7701056 A FR 7701056A FR 2377536 A1 FR2377536 A1 FR 2377536A1
Authority
FR
France
Prior art keywords
compressed air
piston
liq
air cylinder
high shock
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
FR7701056A
Other languages
French (fr)
Other versions
FR2377536B1 (en
Inventor
V M Lyatkher
V P Nikolaev
A M Militeev
S Y Shkolnikov
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.)
INST GIDROPROEKT IM
Original Assignee
INST GIDROPROEKT IM
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 INST GIDROPROEKT IM filed Critical INST GIDROPROEKT IM
Priority to FR7701056A priority Critical patent/FR2377536A1/en
Publication of FR2377536A1 publication Critical patent/FR2377536A1/en
Application granted granted Critical
Publication of FR2377536B1 publication Critical patent/FR2377536B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1066—Making by using boring or cutting machines with fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/06—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for effecting pulsating flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The unit generates a high shock pressure in a liquid and is used to break up concrete and similar solid constructions. It comprises a cylinder (1) containing a piston (4) which has a minor diameter (20) at the front. An extension (25) in front of this has its forward end enlarged to a head (26). When the operating chamber (11) is not filled with compressed air, this head forms a valve which closes a necked portion (23) in the high pressure section (5,6). As compressed air pushes the piston forwards, this head moves past the necked section, opening the valve and permitting rapid acceleration of the piston.
FR7701056A 1977-01-14 1977-01-14 System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration Granted FR2377536A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7701056A FR2377536A1 (en) 1977-01-14 1977-01-14 System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7701056A FR2377536A1 (en) 1977-01-14 1977-01-14 System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration

Publications (2)

Publication Number Publication Date
FR2377536A1 true FR2377536A1 (en) 1978-08-11
FR2377536B1 FR2377536B1 (en) 1979-04-20

Family

ID=9185509

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701056A Granted FR2377536A1 (en) 1977-01-14 1977-01-14 System generating high shock pressure in liq. - has shouldered piston in compressed air cylinder and extension valve to improve acceleration

Country Status (1)

Country Link
FR (1) FR2377536A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365045A1 (en) * 1976-09-21 1978-04-14 Health & Safety Executive PULSE GENERATOR EQUIPMENT WITH STEPED PISTONS
DE102017119610A1 (en) * 2017-08-26 2019-03-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for generating a sequence of beam sections of a discontinuous, modified liquid jet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365045A1 (en) * 1976-09-21 1978-04-14 Health & Safety Executive PULSE GENERATOR EQUIPMENT WITH STEPED PISTONS
DE102017119610A1 (en) * 2017-08-26 2019-03-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for generating a sequence of beam sections of a discontinuous, modified liquid jet

Also Published As

Publication number Publication date
FR2377536B1 (en) 1979-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse