公开(公告)号：US20020095934A1

公开(公告)日：2002-07-25

申请号：US10053882

申请日：2002-01-24

Inventor： Takahiro Yamaguchi ,  Tomoo Harada ,  Takashi Sato ,  Hiroshi Kondo ,  Toshihiko Kawamura

IPC: F15B007/00 ,  B60T008/40

CPC classification number: F04C2/102 ,  B60T8/4031 ,  B60T8/4872 ,  F04C15/0019 ,  F05C2225/04

Abstract: In the rotary pump, a high pressure outer circumference chamber, which is formed around an outer circumference of an outer rotor and communicates with a discharge port, presses radially inward first defined parts among the outer circumference of the outer rotor that are positioned radially outside second defined parts adjacent to teeth gap portions whose volume are largest and smallest among teeth gap portions communicating with an intake port. Teeth top clearance between the outer and inner rotors at the second defined part is reduced due to pressure difference between the discharge pressure applied to the first defined parts and the intake pressure applied to the second defined parts.

Abstract translation: 在旋转泵中，形成在外转子的外周并与排出口连通的高压外周室沿径向向外压缩位于径向外侧的外转子外周的第一限定部分 在与进气口连通的齿隙部分中与齿间隙部分相邻的限定部分最大且最小。 由于施加到第一限定部件的排出压力和施加到第二限定部件的进气压力之间的压力差，第二限定部分处的外转子和内转子之间的齿顶间隙减小。

公开(公告)号：US20020050137A1

公开(公告)日：2002-05-02

申请号：US10004221

申请日：2001-10-26

Inventor： Keiji Nakagawa ,  Yukihiro Honda

IPC: F15B007/00

CPC classification number: B29C45/0025 ,  B29C45/2628 ,  B29C45/33 ,  B29L2031/7494 ,  B60T11/16

Abstract: An upper die and a lower die are combined. A core for molding a concavity and another core are combined with the combined upper die and the lower die at respective prescribed positions. A core for through-hole molding is constructed by the junction of cores that are severally formed with the upper die and the lower die integrally on the extension line of the central axis of the core for molding a concavity. A through-hole is molded with the core for through-hole molding. A concavity in which a valve mechanism is equipped and a communicating hole through which the concavity communicates with the through-hole are molded with the core for molding a concavity. The core for through-hole molding includes an impact hole, in which a tip of the core for molding a concavity is impacted.

Abstract translation: 组合上模和下模。 用于模制凹部和另一芯的芯在相应的规定位置与组合的上模和下模结合。 用于通孔成型的芯通过与上模和下模分别形成的芯的连接部一体地构造在用于模制凹部的芯的中心轴线的延伸线上。 一个通孔用芯子模制，用于通孔成型。 配备有阀机构的凹部和凹部与通孔连通的连通孔用模制凹部的芯成型。 用于通孔成型的芯部包括冲击孔，其中用于模制凹部的芯的尖端被冲击。

公开(公告)号：US20020029568A1

公开(公告)日：2002-03-14

申请号：US09941639

申请日：2001-08-30

Inventor： Akimoto Okada ,  Naoyasu Enomoto ,  Toshihiro Nakano

IPC: F15B007/00

CPC classification number: F16D25/088 ,  B60T11/16

Abstract: A master cylinder includes a cylinder housing having a rearwardly opening inner bore, a piston having a forwardly opening bore positioned in the inner bore of the cylinder housing, a spring disposed in the inner bore of the piston, a stopper supporting a front end of the spring, a retainer disposed in the inner bore of the piston and supporting a rear end of the spring, and a rod connecting the retainer and the stopper while allowing the spring to compress in the axial direction. A plurality of projection portions are formed on the outer circumferential portion of the retainer and the retainer is pressed into the inner bore of the piston via the projection portions.

Abstract translation: 主缸包括具有向后打开的内孔的气缸壳体，具有位于气缸壳体的内孔中的向前开口孔的活塞，设置在活塞的内孔中的弹簧，支撑着活塞的前端的止动件 弹簧，设置在活塞的内孔中并支撑弹簧的后端的保持器，以及连接保持器和止动件的杆，同时允许弹簧沿轴向压缩。 在保持器的外周部形成有多个突起部，并且保持器经由突起部被压入活塞的内孔。