公开(公告)号：US20170321814A1

公开(公告)日：2017-11-09

申请号：US15533577

申请日：2015-12-09

Applicant: KITZ CORPORATION

Inventor： Kazuhiro AOKI ,  Hiroki OHNO

IPC: F16K11/085 ,  F16K31/60 ,  B61D19/00

CPC classification number: F16K11/0856 ,  B61D19/00 ,  F16K5/0278 ,  F16K5/0684 ,  F16K5/162 ,  F16K5/204 ,  F16K11/0836 ,  F16K11/0873 ,  F16K31/602

Abstract: A rotary valve and a quick exhaust valve for a railway vehicle in which high sealability and operability at the time of valve opening and closing are ensured. Outflow/inflow ports (10, 11) and a discharge port (12) are formed in a valve body accommodating part having a spherical surface part or a tapered surface part formed on part of an inner periphery in a body (2), and a valve body (3) is rotatably inserted from an opening which is open from the valve body accommodating part. A spherically-shaped surface part or a tapered-shaped surface part is formed at a position opposing the spherical surface part or the tapered surface part, a plurality of through ports communicating the outflow/inflow ports or the discharge port and an attachment groove opposing the outflow/inflow ports in a direction crossing the through ports are formed, and a seal member is attached to the attachment groove.

公开(公告)号：US20170282258A1

公开(公告)日：2017-10-05

申请号：US15518075

申请日：2015-10-14

Applicant: KITZ CORPORATION

Inventor： Hiroki OHNO

IPC: B23B51/10 ,  B23B51/08 ,  E21B10/60 ,  B23K26/361

CPC classification number: B23B51/101 ,  B23B51/00 ,  B23B51/08 ,  B23B51/105 ,  B23B2265/36 ,  B23C3/12 ,  B23C2220/20 ,  B23D79/00 ,  B23K26/361 ,  E21B10/602 ,  F16K11/0833 ,  F16K11/0873

Abstract: A cross hole deburring tool which performs rotary cutting on a cross hole burr occurring on a cross ridgeline part between a through path and an inner circumferential surface of a spherically-shaped hollow part. A tool main body includes a tip part and a shank, and the tip part has a shape obtained by setting a diameter axis of a circle, setting an eccentric axis parallel to the diameter axis and away therefrom by a predetermined eccentric distance, setting a closed region in a bow shape formed of a line segment obtained by cutting the eccentric axis by the circle and a minor arc on the circle by defining this line segment as a chord, setting an outer surface shape of a bow-shaped solid of revolution formed by rotating this bow shape about the eccentric axis, and taking this outer surface shape as the shape of the tip part.