公开(公告)号：US20140283678A1

公开(公告)日：2014-09-25

申请号：US14298183

申请日：2014-06-06

Applicant: TOKAI RUBBER INDUSTRIES, LTD.

Inventor： Yorihiro TAKIMOTO ,  Ryo IKEGAMI ,  Koji MIZUTANI ,  Kazutaka KATAYAMA

IPC: F02M55/02 ,  F16L55/04

CPC classification number: F02M55/02 ,  F02M37/0041 ,  F02M55/04 ,  F02M69/462 ,  F02M2200/315 ,  F02M2200/9015 ,  F16L37/0847 ,  F16L55/04 ,  F16L55/053

Abstract: Provided is a connector which can facilitate tuning of frequency of pulsation to be reduced and prevent sealing performance from degrading when a piston moves. A pulsation reducing member adopts a structure in which the piston moves in a cylinder. The cylinder has an annular flange portion projecting in a radially inner direction of a hollow cylindrical shape. An elastic sealing member is sandwiched in a compressed state between an end surface of the flange portion of the cylinder and an end surface of the piston. An urging body is disposed in a region in the cylinder on a side of the piston opposite to a passage and applies urging force to move the piston toward the passage and compress the elastic sealing member.

Abstract translation: 提供了可以促进脉动频率的调谐以减少活塞移动时的密封性能降低的连接器。 脉动减少构件采用活塞在气缸中移动的结构。 气缸具有沿中空圆柱形状的径向内部方向突出的环形凸缘部分。 弹性密封构件被压缩的状态夹在圆筒的凸缘部分的端面与活塞的端面之间。 推动体设置在活塞的与通道相对的一侧的区域中，并且施加推动力以使活塞向通道移动并压缩弹性密封构件。

公开(公告)号：US20140319820A1

公开(公告)日：2014-10-30

申请号：US14324970

申请日：2014-07-07

Applicant: TOKAI RUBBER INDUSTRIES, LTD.

Inventor： Yorihiro TAKIMOTO ,  Koji MIZUTANI ,  Kazutaka KATAYAMA

IPC: F16L37/14

CPC classification number: F16L37/144 ,  F02M37/0017 ,  F16L37/088 ,  F16L37/098 ,  F16L47/02 ,  F16L2011/047 ,  F16L2201/10

Abstract: Provided is a piping connection structure which assigns a function to restrict a pipe body from coming off to a member other than a resin tube, improves in sealing performance and can suppress the amount of fuel permeation. A resin tube comprises a tube body portion; a first diameter-expanding portion formed to increase in diameter from an axial end of the tube body portion and axially positioning seal members by holding the seal members in an axial gap with a retainer; and a second diameter-expanding portion formed to further increase in diameter from the first diameter-expanding portion, and to contact an outer circumferential side of the seal members and be connected to the retainer while in contact with the retainer. Thickness of the first diameter-expanding portion is equal to or greater than thickness of the tube body portion.

Abstract translation: 本发明提供一种管道连接结构，其具有限制管体脱离到树脂管以外的部件的功能，提高密封性能并且能够抑制燃料渗透量。 树脂管包括管体部分; 第一直径扩大部，其形成为从所述管主体部的轴向端部直径增大，并且通过将所述密封部件与保持器保持轴向间隙而轴向定位密封部件; 以及第二直径扩大部，其形成为从所述第一直径扩大部进一步增大直径，并且与所述密封构件的外周侧接触，并且在与所述保持器接触的状态下与所述保持器连接。 第一直径扩大部分的厚度等于或大于管体部分的厚度。