公开(公告)号：US11002270B2

公开(公告)日：2021-05-11

申请号：US15489512

申请日：2017-04-17

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： Joshua D. West

IPC: F04B53/08 ,  F04B43/02 ,  F04B43/04 ,  F04B53/10

Abstract: A diaphragm pump includes motor that drives an armature in a reciprocating linear motion. A first diaphragm is coupled to a first end of the armature, the first diaphragm positioned in a first pumping chamber and configured to pump fluid into and out of the first pumping chamber in response to the reciprocating linear motion of the armature. A cooling intake valve and a cooling exhaust valve are in operative communication with the first diaphragm, wherein as the armature advances to flex the first diaphragm to decrease a volume of the first pumping chamber, the first diaphragm draws ambient air behind the first diaphragm through the cooling intake valve, and wherein as the armature reverses course to cause the first diaphragm to increase the volume of the first pumping chamber, the first diaphragm forces ambient air out of the first pumping chamber through the cooling exhaust valve.