Flow sensor with bypass taps in laminar flow element laminarizing channel

摘要

A flow sensor includes a main flow body, a laminar flow element, a first bypass tap, and a second flow element sensor tap. The main flow body has a first main flow port, a second main flow port, a main flow channel, a first bypass tap, a second bypass tap, and a bypass flow channel. The laminar flow element is disposed within the main flow channel. The bypass flow channel has a cross sectional area, and the first bypass tap and the second bypass tap each have a cross sectional area that is greater than the maximum cross sectional area of the bypass flow channel.

主权项

1. A flow sensor, comprising:
a main flow body having a first main flow port, a second main flow port, and a main flow channel between the first main flow port and the second main flow port; a laminar flow element disposed within the main flow channel between the first main flow port and the second main flow port and having a first end, a second end, and an outer surface, the first end facing the first main flow port, the second end facing the second main flow port; a bypass element disposed adjacent to the main flow body and including a bypass flow channel; a first bypass tap extending through the outer surface of the laminar flow element and disposed between the first end and the second end of the laminar flow element, the first bypass tap fluidly communicating the main flow channel with the bypass flow channel; and a second bypass tap extending through the outer surface of the laminar flow element and disposed between the first end and the second end of the laminar flow element, the second bypass tap fluidly communicating the main flow channel with the bypass flow channel, wherein:
the bypass flow channel has a cross sectional area, andthe first bypass tap and the second bypass tap each have a cross sectional area that is greater than the cross sectional area of the bypass flow channel.