Liquid pulsation dampener device

Claim 1

A liquid pulsation dampening arrangement for use in a piping network having a positive displacement pump with a delivery side for delivering fluid to the network in a flow direction comprising: a hydro-pneumatic dampener having a first chamber with a bladder member therein for separating a pneumatic fluid space from a liquid fluid space in said first chamber; a first connection from said network downstream of said pump delivery side to said liquid fluid space; a dynamic dampener having a second chamber with an inlet, an outlet and the means extending from said inlet and outlet for reducing vibrations in the liquid fluid; a second connection in the network between said first connection and said second chamber inlet for connecting said dynamic dampener downstream of said hydropneumatic dampener in said network; said means for reducing vibrations comprising a first pipe section extending from said inlet into said second chamber and a second pipe section extending from said outlet into said second chamber, said first and second pipe sections separated by a selected spacing in said second chamber; a housing defining said second chamber and a third chamber, said first chamber defined in said third chamber, said first connection comprising an opening into said third chamber and an opening between said first chamber and said third chamber, said dynamic dampener inlet extending between said third chamber and said second chamber; said housing including a longitudinal axis, said dynamic inlet and outlet and said opening between said first and third chambers axially aligned along said longitudinal axis, said first connection opening into said third chamber extending at an angle to said longitudinal axis; and a partition which is convex toward said third chamber extending across said housing before dividing said housing into said third and second chambers, said dynamic dampener inlet extending centrally through said partition.