Title:
チェックバルブユニットにおけるノイズ減衰
Document Type and Number:
Japanese Patent JP6632973
Kind Code:
B2
Abstract:
Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port.
Inventors:
Keith Hampton
David E Fletcher
Brian M. Gray Chen
Rex Bravo
Matt Gilmer
Andrew Niedelt
David E Fletcher
Brian M. Gray Chen
Rex Bravo
Matt Gilmer
Andrew Niedelt
Application Number:
JP2016521267A
Publication Date:
January 22, 2020
Filing Date:
October 08, 2014
Export Citation:
Assignee:
DAYCO IP HOLDINGS,LLC
International Classes:
F16K47/02
Domestic Patent References:
| JP1111878U | ||||
| JP61500454A | ||||
| JP60029366A | ||||
| JP2006036188A |
Foreign References:
| US4951708 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe