Patent ID: 9297436
Filing Date: 2016-03-29
CPC Classification: F16F,F16K

Claim Text:
1. A valve comprising: an annular disc including an opening window and a passage that extends from an inner periphery of the disc or an outer periphery of the disc to the opening window; an annular leaf valve that is laminated onto the disc in order to open and close the opening window; a support member that is laminated onto a surface of the leaf valve on an opposite side to the disc, and supports the leaf valve so that only the opening window is capable of opening; and a seat member that is laminated onto a surface of the disc on an opposite side to the leaf valve, wherein: the opening window and the passage are formed from holes penetrating the disc in an axial direction, the disc is sandwiched between the seat member and the leaf valve such that the passage functions as an orifice, and the seat member includes a projection that engages with the disc, the leaf valve, and the support member to position the disc, the leaf valve, and the support member in a radial direction as well as to prevent the disc from rotating.