EP4276402A1 - Flüssigkeitsverteilungssystem für aufgeladene pneumatische (pcp) karbinen oder pistolen - Google Patents

Flüssigkeitsverteilungssystem für aufgeladene pneumatische (pcp) karbinen oder pistolen Download PDF

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Publication number
EP4276402A1
EP4276402A1 EP21709749.2A EP21709749A EP4276402A1 EP 4276402 A1 EP4276402 A1 EP 4276402A1 EP 21709749 A EP21709749 A EP 21709749A EP 4276402 A1 EP4276402 A1 EP 4276402A1
Authority
EP
European Patent Office
Prior art keywords
reservoir
fluid
spacing element
pressure
outlet
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.)
Pending
Application number
EP21709749.2A
Other languages
English (en)
French (fr)
Inventor
Julián Arnedo Vera
Desiderio FALCÓ SASTRE
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.)
Gamo Outdoor SL
Original Assignee
Gamo Outdoor SL
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 Gamo Outdoor SL filed Critical Gamo Outdoor SL
Publication of EP4276402A1 publication Critical patent/EP4276402A1/de
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70—Details not provided for in F41B11/50 or F41B11/60
    • F41B11/72—Valves; Arrangement of valves
    • F41B11/723—Valves; Arrangement of valves for controlling gas pressure for firing the projectile only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/68—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas the gas being pre-compressed before firing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/62—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/64—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot
    • F41B11/642—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/68—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas the gas being pre-compressed before firing
    • F41B11/681—Pumping or compressor arrangements therefor
    • F41B11/682—Pressure accumulation tanks

Definitions

  • Fluid distribution system for PCP-propelled carbines or pistols of the type comprising a firing mechanism comprising a trigger and a main valve, which is connected to a barrel, and a first reservoir where the fluid to be delivered to the main valve is provided at a pre-determined pressure; said first reservoir being arranged inside a tubular element, characterised in that it comprises: a second reservoir, arranged inside the tubular element, having the same pressure as the first reservoir, and a spacing element that operates as a moving piston, arranged inside the tubular element, which separates the first reservoir from the second reservoir; the tubular element at least partially surrounds the first reservoir, the spacing element and the second reservoir; and which, in an active position after the shot is fired, as the pressure of the fluid from the first reservoir drops, the fluid in the second reservoir pushes the spacing element in the direction of the first reservoir until de pressure of the fluid of the first reservoir and the pressure of the fluid in the second reservoir are balanced; and which, in a loading position, once the fluid has been supplied to the first reservoir at a pre-determined
  • Patent WO2017196274 SEMIAUTOMATIC AIR CARBINE WITH PNEUMATIC SYSTEM
  • Bahtiyar TASYAGAN which refers to a semi-automatic air carbine and air pistol with a pneumatic system (PCP) operating in such a way that the air, which carries the ammunition in the pneumatic air carbines and air pistols, hits, without changing its direction, the piston at the instant it leaves the barrel to set said piston in motion in the direction of the muzzle, and at the same time, the other members of the system that the inventors have developed also start to move, thereby enabling the carbine and the pistol, after each shot, to become automatically prepared for the next shot.
  • PCP pneumatic system
  • Patent GB2539399 "PNEUMATIC APPARATUS", of the year 2015, in the name DAYSTATE LIMITED , referring to an ambidextrous pneumatic weapon, such as a PCP-type air carbine, comprising a body, a barrel, a magazine or clip for providing a supply of pellets or other projectiles for firing from the gun, and a mechanism for inserting a new pellet from the magazine into the barrel ready for firing.
  • the mechanism comprises a bolt which is pivotally attached thereto by means of a side lever, which is in turn pivotally mounted, by means of a pivoting shaft, to a portion of the body of the gun.
  • the side lever can be selectively configured for either a left or a right-handed configuration to either side of the weapon body of a user of the weapon.
  • the present invention belongs to the field of PCP-type sports weapons.
  • Patent WO2017196274 The nearest document is Patent WO2017196274 .
  • the problem in the cited invention is that, on the one hand, the shot loses efficiency at low pressures, and besides, the final speed will not be the same as in the final shots.
  • This invention solves the efficiency problem as well as the problem of maintaining the final speed of the pellet as it comprises a first reservoir (or firing reservoir) and a second reservoir (or auxiliary reservoir) which are separated by a spacing element of the reservoirs; the spacing element operates as an inner moving piston, so that both reservoirs have the same pressure and, when the shot is fired, due to the exit of the fluid and the resulting drop in pressure in the firing reservoir, the fluid of the auxiliary reservoir pushes the spacing element, thus reducing the size of the firing reservoir until the fluid pressures of both reservoirs are balanced. This guarantees that the pellet will be delivered pressure by the fluid while it runs inside the barrel without there being any pressure drops, in contrast to what occurs in the background document.
  • the spacing element keeps simultaneously moving by the effect of the pressure exerted by the fluid of the second reservoir on such spacing element, which fluid of the second reservoir compresses the first reservoir, such that the pressure received by the pellet from the fluid exiting the first reservoir is the same throughout the whole path run by of the pellet inside the barrel.
  • the fluid in this latter reservoir pushes the spacing element in the direction of the auxiliary reservoir compressing the fluid in the auxiliary reservoir until the pressures of the fluids of both reservoirs are balanced again and the gun is ready for firing again.
  • An object of the present invention is a fluid distribution system for PCP-propelled carbines or pistols, of the type comprising a firing mechanism comprising a trigger and a main valve, which is connected to a barrel, and a first reservoir where the fluid to be delivered to the main valve is provided at a pre-determined pressure; said first reservoir being arranged inside a tubular element, characterised in that it comprises: a second reservoir, arranged inside the tubular element, having the same pressure as the first reservoir, and a spacing element that operates as a moving piston, arranged inside the tubular element, which separates the first reservoir from the second reservoir; the tubular element at least partially surrounds the first reservoir, the spacing element and the second reservoir; and which, in an active position after the shot is fired, as the pressure of the fluid from the first reservoir drops, the fluid in the second reservoir pushes the separator element in the direction of the first reservoir until de pressure of the fluid of the first reservoir and the pressure of the fluid in the second reservoir are balanced; and which, in a loading position, once the fluid has been
  • Figure 1 shows a tubular element 3, a barrel 21, a cap 19 and a trigger 22.
  • Figure 2 depicts a first reservoir 1, a second reservoir 2, the tubular element 3, a spacing element 4, a firing mechanism 20 having a main valve 23, the trigger 22 and barrel 21.
  • Figure 3 shows the first reservoir 1, the second reservoir 2, the tubular element 3 and its cap 19, a limit stop 14 and the spacing element 4 with its retaining means 5.
  • Figure 4 shows the spacing element 4 with its main body 9 arranged in its housing 18, its pin 10, its joint 16, a rod 11 having a transversal groove 6, a spring 12, an outlet 7, an inlet 8, retaining means 5 and a set screw 13.
  • Figure 5 depicts the first reservoir 1, the second reservoir 2, the spacing element 4, the main valve 23, the trigger 22, the barrel 21, P i which represents the pressure when the pellet is at starting end of the barrel and Pf , which is the pressure when the pellet finds the end exit of the barrel.
  • the fluid distribution system for PCP-propelled carbines or pistols is of the type comprising a firing mechanism 20.
  • Said firing mechanism comprises, in brief, a trigger 22 and a main valve 23, which is connected to a barrel 21.
  • the system also comprises a first reservoir 1 where the fluid to be delivered to the main valve 23 is provided.
  • Said first reservoir 1 contains a fluid (for instance CO2 or compressed air) having a predetermined pressure.
  • Said first reservoir 1 is located inside the tubular element 3.
  • the system also comprises a second reservoir 2, located inside the tubular element 3, having the same pressure as the first reservoir 1.
  • the system comprises a spacing element 4, which operates as a moving piston and is positioned inside the tubular element 3 and separates the first reservoir 1 from the second reservoir 2.
  • tubular element 3 at least partially surrounds the first reservoir 1, the spacing element 4 and the second reservoir 2.
  • the fluid in the second reservoir 2 pushes the spacing element 4 in the direction of the first reservoir 1 until the pressure of the fluid of the first reservoir 1 and the pressure of the fluid of the second reservoir 2 are balanced and the spacing element 4 is stopped.
  • the spacing element 4 comprises retaining means 5 to retain the tubular element 3.
  • retaining means 5 have a double function: on one side, they prevent that the fluid inside a reservoir from passing through to the other reservoir and on the other, they contribute to a controlled movement of the spacing element 4 when it is pushed by the reservoir fluids.
  • the spacing element 4 is a valve, as shown in Figure 4 .
  • the spacing element 4 may also be a solid element, as shown in Figure 3 . Where it is desirable that the spacing element 4 should weigh less, it would be possible to make drill holes therein (not shown) in order to reduce its mass.
  • the first option has the advantage that if the weapon is not used for a long period and the second reservoir 2 has lost some fluid, the fluid can be passed from the first reservoir 1 through the valve to the second reservoir 2, and refill it, to optimise the shot.
  • a limit stop 14 which limits the progress of the spacing element 4 and allows that the pressure of the fluid of the first reservoir 1, being higher than the pressure of the fluid of the second reservoir 2, to open the valve of the spacing element 4 and let the fluid pass from the first reservoir 1 to the second reservoir 2.
  • the limit stop 14 may be configured in different ways.
  • a limit stop may be arranged in the tubular element 3, or else the second reservoir 2 may be a structure within the tubular element 3, so that the edges of the second reservoir 2 serve as a limit stops 14 (as shown in Figure 3 ).
  • the spacing element being solid, reduces costs.
  • the spacing element 4 is by way of a moving piston, as above described and as illustrated in Figure 4 , where the spacing element comprises a main body 9, having a pin 10 that blocks the inlet 8 when the first reservoir 1 is not loaded, and having a rod 11 in the direction of the outlet 7 where the spring 12, which rests in the outlet 7, is provided and which separates said outlet 7 form the rod 11. In other words, the rod 11 never closes the outlet 7.
  • Another manufacturing option is to configure a set screw 13 at the outlet 7, which comprises said outlet hole 7, which brings the outlet 7 closer to or away from the free end of the rod 11.
  • the spring 12 rests on said set screw 13 which is positioned in the rod 11. This configuration allows to regulate the level of compression of the spring 12 y and the opening reaction of the inlet 8 when the pressure changes.
  • the rod 11 comprises a transversal groove 6 in its free end, facing the outlet 7. This facilitates that even when the rod 11 would touch the outlet 7, it may never block it because the fluid would go through the transversal groove 6 and would scatter therein. This would allow the fluid to exit through the outlet 7 and fill the second reservoir 2.
  • the pressure of the fluid (e. gr. pre-compressed air o CO2,) in the first reservoir 1 is the same as the pressure of the fluid in the second reservoir 2.
  • the main valve 23 opens and the lets the fluid of the first reservoir 1 in, then to be delivered until the starting end Pi of the barrel.
  • the spacing element or moving piston 4 moves in the direction of the first reservoir 1, being pushed by the fluid of the second reservoir 2, until the fluid pressures of the first reservoir 1 and the second reservoir 2 are compensated.
  • volume inside the barrel 21, where the pellet runs equals the volume of the first reservoir 1 before the shot occurs.
  • the moving piston 4 could be configured as a one-way-only-pressure valve.
  • the moving piston 4 would operate in the following way: as the first reservoir 1 is being loaded with fluid, due to the difference in fluid pressure of the first reservoir 1 with respect to the second reservoir, the fluid pressure of the first reservoir 1 will push the moving piston 4 towards the second reservoir 15 until it is stopped by the limit stop 14.
  • the fluid from the first reservoir 1 enters through said inlet 8 and moves through the housing 18 to the outlet 7.
  • the spring 12 is compressed against the set screw 13, so that when the pressures in the first reservoir 1 and in the second reservoir 2 equalize, the spring 12 will move the main body 9 in the direction of the inlet 8, and the pin 10 and its joint will block the inlet 8. It should be noted that when in a rest position, the set screw 13 is separated from the rod 11 in order to prevent the blocking of the outlet 7.
  • El rod 11 comprises a transversal groove 6 that is located opposite to the outlet 7, which is formed in the set screw 13, so that if the rod 11 should contact the outlet 7 or the set screw 13, the fluid would still continue to enter into the second reservoir 2 from the first reservoir 1 through the transversal groove 6.
  • the present invention describes a new system of fluid distribution for PCP-propelled carbines or pistols.
  • the examples provided herein are not limitative of the present invention, which may therefore have different applications and/or adaptations, all of which within the scope of the following claims.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating Apparatus (AREA)
  • Jet Pumps And Other Pumps (AREA)
EP21709749.2A 2021-01-11 2021-01-11 Flüssigkeitsverteilungssystem für aufgeladene pneumatische (pcp) karbinen oder pistolen Pending EP4276402A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2021/070006 WO2022148888A1 (es) 2021-01-11 2021-01-11 Sistema de distribución de fluidos para carabinas o pistolas de aire comprimido pcp.

Publications (1)

Publication Number Publication Date
EP4276402A1 true EP4276402A1 (de) 2023-11-15

Family

ID=74856886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21709749.2A Pending EP4276402A1 (de) 2021-01-11 2021-01-11 Flüssigkeitsverteilungssystem für aufgeladene pneumatische (pcp) karbinen oder pistolen

Country Status (3)

Country Link
US (1) US20240060746A1 (de)
EP (1) EP4276402A1 (de)
WO (1) WO2022148888A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819649A1 (de) * 1988-05-26 1989-11-30 Waffentechnik Gmbh Antriebssystem fuer luftdruckwaffen
US6581585B2 (en) * 2001-11-16 2003-06-24 Alfred F. Nibecker, Jr. Air gun
CN206073810U (zh) * 2016-09-06 2017-04-05 中山市新山禾技术服务有限公司 一种气枪用具有预压力的储气筒

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US20240060746A1 (en) 2024-02-22
WO2022148888A1 (es) 2022-07-14

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