• Welcome to the DeeperBlue.com Forums, the largest online community dedicated to Freediving, Scuba Diving and Spearfishing. To gain full access to the DeeperBlue.com Forums you must register for a free account. As a registered member you will be able to:

    • Join over 44,280+ fellow diving enthusiasts from around the world on this forum
    • Participate in and browse from over 516,210+ posts.
    • Communicate privately with other divers from around the world.
    • Post your own photos or view from 7,441+ user submitted images.
    • All this and much more...

    You can gain access to all this absolutely free when you register for an account, so sign up today!

Contilinka with vacuum pump for long guns (Concept)

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.

Zahar

Well-Known Member
Jun 3, 2014
204
40
68
60
I present to your attention the Contilinka Concept with a vacuum pump for long guns, which allows you to create a vacuum in the barrel between the piston and the firing valve until the harpoon is freely loaded by hand without setting effort when pumping the gun! The concept fits without barrel eccentricity into a 40 mm diameter receiver! VZSM is taken out! O-ring whispered as a spring! The pump stroke of 200 - 250 mm is due to the bending strength of 5 mm of the pump rod during operation! Segment valve pump piston! The shotgun can be operated without a pump!
To use the pump, it is necessary to cock the opening valve and turn the pump rod with the handle to release the pump rod stopper! After reaching the required vacuum in the barrel, the pump rod is brought up to the stop against the muzzle and rotates until the stopper is fixed in the muzzle to prevent
unauthorized extension!
 
Reactions: tromic
So is this like a “Mirage”, but instead of pumping down the rear end of the gun and the inner barrel you only have to pump down the inner barrel because the releasing valve shuts off gas in the rest of the gun. For those who are unfamiliar with them releasing valve guns after the shot have gas at the start pressure throughout all the internal spaces in the gun, although the inner barrel is plugged by the releasing valve. When you muzzle load the gun you compress the gas in the inner barrel driving it through a one-way valve in the releasing valve to move it into the gun's tank. The gas cannot come back into the inner barre until you pull the trigger. So this concept pumps down the inner barrel volume transferring air into the gun's tank rather than you pushing on the main barrel piston which with its greater diameter (than the pump rod piston) is much harder to push.
 
Reactions: Zahar and tromic
It is possible to increase the length of the Working Stroke of the vacuum pump with the additional support of the pump handle on the harpoon!
 
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…