US 12,474,004 B2
Connection member and connection unit
Takehito Tamaoka, Kyoto (JP); and Yoshihisa Kitamura, Kyoto (JP)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Filed by Nidec Corporation, Kyoto (JP)
Filed on Dec. 27, 2023, as Appl. No. 18/396,938.
Claims priority of application No. 2022-212735 (JP), filed on Dec. 28, 2022.
Prior Publication US 2024/0218952 A1, Jul. 4, 2024
Int. Cl. F16L 37/252 (2006.01); F16L 37/34 (2006.01)
CPC F16L 37/252 (2013.01) [F16L 37/34 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A connector comprising:
a flow path extending in an axial direction along a central axis;
a body including a through hole extending in the axial direction;
a pipe including a through hole extending in the axial direction; and
a seal including a sealing material between the body and the pipe; wherein the body includes a body-side opposing surface opposing the pipe;
the pipe includes a pipe-side opposing surface opposing the body;
the seal is between the body-side opposing surface and the pipe-side opposing surface; and
the seal includes a reservoir in which the sealing material collects between the body-side opposing surface and the pipe-side opposing surface;
at least one of the body-side opposing surface and the pipe-side opposing surface includes a cutout surface obtained by cutting out a plane parallel to the axial direction or a radial direction orthogonal to the axial direction;
the seal includes a plurality of reservoirs that include:
an outer diameter-side reservoir on an outermost side in a radial direction among the plurality of reservoirs; and
an inner diameter-side reservoir on an innermost side in a radial direction among the plurality of reservoirs;
a plurality of cutout surfaces define the cutout surface;
the plurality of cutout surfaces include:
an outer diameter-side cutout surface at an outer end in a radial direction of the body-side opposing surface or the pipe-side opposing surface among the plurality of cutout surfaces; and
an inner diameter-side cutout surface communicating with the through hole among the plurality of cutout surfaces;
when the outer diameter-side reservoir and the inner diameter-side reservoir are exposed in the radial direction, a slant with respect to the axial direction of the inner diameter-side cutout surface is smaller than a slant with respect to the axial direction of the outer diameter-side cutout surface; and
when the outer diameter-side reservoir and the inner diameter-side reservoir are exposed in the axial direction, a slant with respect to the radial direction of the inner diameter-side cutout surface is smaller than a slant with respect to the radial direction of the outer diameter-side cutout surface.