MODULAR JETTING DEVICES

摘要

A jetting device and/or fluid module includes a nozzle with a fluid outlet, a body including a fluid chamber and a fluid inlet in fluid communication with the fluid chamber, and a valve seat disposed in the fluid chamber, where the valve seat includes an opening in fluid communication with the fluid outlet. The jetting device also includes a movable element having a top portion and a bottom portion, where the top portion is disposed external to the fluid chamber and arranged to be contacted by a reciprocating drive pin, and where the bottom portion is disposed within the fluid chamber. Finally, the jetting device also includes a sealing member contacting the movable element between the top portion and the bottom portion, where the sealing member also contacts the body, and defines a portion of a boundary of the fluid chamber to seal the fluid chamber

主权项

1. A jetting device, comprising:
a nozzle with a fluid outlet; a body including a fluid chamber and a fluid inlet, the fluid inlet in fluid communication with the fluid chamber; a valve seat disposed in the fluid chamber, the valve seat including an opening in communication with the fluid outlet; a movable element having a top portion and a bottom portion, the top portion being disposed external to the fluid chamber and arranged to be contacted by a reciprocating drive pin, the bottom portion being disposed within the fluid chamber and configured to move in a direction towards the valve seat in response to the top portion being contacted by the drive pin to cause a droplet of fluid from the fluid chamber to be jetted from the fluid outlet; and a sealing member contacting the movable element between the top portion and the bottom portion, the sealing member also contacting the body, and the sealing member defining a portion of a boundary of the fluid chamber to seal the fluid chamber.