公开(公告)号：US20240293767A1

公开(公告)日：2024-09-05

申请号：US18268075

申请日：2021-12-27

Applicant: USUI CO., LTD.

Inventor： Tetsunobu SUZUKI ,  Masaru SUZUKI

IPC: B01D45/14 ,  F02M35/10

CPC classification number: B01D45/14 ,  F02M35/10222 ,  F02M35/10262

Abstract: A gas-liquid separator includes a pipe member through which a gas-liquid two-phase fluid flows; and a swirling flow generator configured to swirl the gas-liquid two-phase fluid to separate gas and liquid therefrom. The swirling flow generator includes blades spirally curved about a central axis of the pipe member. The blade includes a distal end in a pipe radial direction. The distal ends of the blades is continuous over an entire circumference of the pipe member when the pipe member is viewed from an axial direction thereof. A communication portion is provided between the pipe member and the swirling flow generator by forming a bulging portion formed on an inner circumferential surface of the pipe member to extend in the axial direction. The communication portion is configured to communicate a first space upstream of the swirling flow generator with a second space downstream of the swirling flow generator.

公开(公告)号：USD1016250S1

公开(公告)日：2024-02-27

申请号：US29812827

申请日：2021-10-25

Applicant: USUI CO., LTD.

Designer： Iichiro Seino

Abstract: FIG. 1 is a front view of a branch pipe showing our new design, with the rear view, the left view, and the right view being identical;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof:
FIG. 4 is a further front view thereof showing line 5-5; and,
FIG. 5 is a cross-sectional view taken from area 5-5 of FIG. 4 showing the branch pipe in use.
The broken lines shown in the drawings illustrate environmental matter only that form no part of the claimed design.

公开(公告)号：US11585304B2

公开(公告)日：2023-02-21

申请号：US16645791

申请日：2018-07-04

Applicant: USUI CO., LTD.

Inventor： Hiroyuki Nishizawa

IPC: F02M55/00 ,  F02M55/02

Abstract: The flexibility of the attachment angle and attachment interval of the member (e.g., injector) attached to the joint member is increased to improve the flexibility of layout even in the case of the forged rail for high-pressure direct injection. In addition, the manufacturing cost can be reduced while keeping high strength of the joint portion. A rail body 1 manufactured by forging, the rail body 1 having a through hole 4 opened on a wall surface 3 for communicating a fuel passage 2 extending in an axial direction with an outside; and
a tubular joint member 6 manufactured separately from the rail 1 body and fixed to the rail body 1 at a position of the through hole 4 for allowing a fuel to flow from the fuel passage 2 through the through hole 4 are provided.

公开(公告)号：US11421630B2

公开(公告)日：2022-08-23

申请号：US16758688

申请日：2018-10-17

Applicant: USUI CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsunobu Suzuki ,  Hidetaka Ito

IPC: F02M26/06 ,  F02M26/05 ,  F02M26/35 ,  F02M26/15 ,  F02M35/10

Abstract: A gas-liquid separator includes a cylindrical inlet pipe and a fluid inflow pipe. The inlet pipe includes a fluid inlet which is formed in a fluid entering side and radially opens. An axis line of the inlet pipe horizontally extends. The fluid inflow pipe includes at an end a connection opening connected to the fluid inlet. An axis line of the fluid inflow pipe horizontally extends. The fluid inflow pipe introduces the gas-liquid two-phase fluid through the fluid inlet from a side of the inlet pipe. In a connecting portion, a position of an axis line extending through a center of a connection opening in communication with the fluid inlet is vertically offset with respect to a position of the axis line of the inlet pipe.

公开(公告)号：US20220136469A1

公开(公告)日：2022-05-05

申请号：US17429404

申请日：2020-02-13

Applicant: NIPPON STEEL CORPORATION ,  USUI CO., LTD.

Inventor： Taizo MAKINO ,  Masahiro YAMAZAKI ,  Tomohiko OMURA ,  Yuji ARAI ,  Osamu ENDO ,  Naoki SERIZAWA ,  Tatsuya MASUDA

IPC: F02M37/00 ,  C22C38/02 ,  C22C38/00 ,  C22C38/06 ,  C22C38/50 ,  C22C38/48 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/58 ,  C21D8/10

Abstract: A steel pipe for a fuel injection pipe has a chemical composition consisting of, by mass %: C: 0.17 to 0.27%, Si: 0.05 to 0.40%, Mn: 0.30 to 2.00%, P: 0.020% or less, S: 0.0100% or less, O: 0.0040% or less, Ca: 0.0010% or less, Al: 0.005 to 0.060%, N: 0.0020 to 0.0080%, Ti: 0.005 to 0.015%, Nb: 0.015 to 0.045%, Cr: 0 to 1.00%, Mo: 0 to 1.00%, Cu: 0 to 0.50%, Ni: 0 to 0.50%, V: 0 to 0.15%, and the balance: Fe and impurities. The metal micro-structure consists substantially of tempered martensite, or tempered martensite and tempered bainite. The hardness is within the range of 350 to 460 HV1. A lattice spacing of a (211) diffraction plane measured by CoKα characteristic X-ray diffraction is 1.1716 Å or less, and a half-value width of the (211) diffraction plane is 1.200° or less. The number density of cementite having a diameter of 50 nm or more is 20/μm2 or less.

公开(公告)号：US11179662B2

公开(公告)日：2021-11-23

申请号：US16463997

申请日：2017-12-04

Applicant: USUI CO., LTD.

Inventor： Tetsunobu Suzuki ,  Hidetaka Ito

IPC: B01D45/12 ,  B04C3/02 ,  B04C3/06 ,  F02M26/05 ,  B01D45/08 ,  B04C3/00 ,  F02B37/00 ,  F02M35/10

Abstract: A gas-liquid separator includes an inlet pipe through which a gas-liquid two-phase fluid flows and a swirling flow generating ribbon disposed within the inlet pipe to swirl the gas-liquid two-phase fluid along an inner surface of the inlet pipe, wherein the inner surface of the inlet pipe includes a first step surface at a location downstream of a flow direction of the gas-liquid two-phase fluid from the swirling flow generating ribbon, the first step surface increasing an inner diameter of the inlet pipe downward thereof.

公开(公告)号：US20210184229A1

公开(公告)日：2021-06-17

申请号：US16758712

申请日：2017-10-24

Applicant: USUI CO., LTD.

Inventor： RYUROU KURAHASHI ,  YOSHIO SHIN ,  KENJI KAWASAKA ,  YOSHIHISA FUKUDOME ,  SHIGEO KAKUDOU

IPC: H01M8/0228 ,  H01M8/0206 ,  C23C24/06 ,  H01M8/0213

Abstract: [Problem] Provided are a metal material including a passive film on a surface and having corrosion resistance while having a small contact resistance, and a method for producing the metal material. Examples of the metal material include a material that is preferable as a material of a separator and a current collector plate in a fuel cell.
[Solution] Conductive particles 3 are embedded in and caused to adhere to a metal substrate 1 including, on a surface thereof, a passive film 2, in a state where the conductive particles 3 penetrate the passive film 2 in a thickness direction, and the surface of the metal substrate is covered with a coating film having conductivity and corrosion resistance. To cause the conductive particles to adhere in such a manner, the conductive particles 3 may be scattered on the metal substrate 1 on which the passive film 2 is formed, and the conductive particles 3 may be pushed into the surface of the metal substrate 1 by pressing with a roll or the like.

公开(公告)号：US20200370517A1

公开(公告)日：2020-11-26

申请号：US16758688

申请日：2018-10-17

Applicant: USUI CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsunobu SUZUKI ,  Hidetaka ITO

IPC: F02M26/06 ,  F02M26/05

Abstract: A gas-liquid separator includes a cylindrical inlet pipe and a fluid inflow pipe. The inlet pipe includes a fluid inlet which is formed in a fluid entering side and radially opens. An axis line of the inlet pipe horizontally extends. The fluid inflow pipe includes at an end a connection opening connected to the fluid inlet. An axis line of the fluid inflow pipe horizontally extends. The fluid inflow pipe introduces the gas-liquid two-phase fluid through the fluid inlet from a side of the inlet pipe. In a connecting portion, a position of an axis line extending through a center of a connection opening in communication with the fluid inlet is vertically offset with respect to a position of the axis line of the inlet pipe.

公开(公告)号：US10828590B2

公开(公告)日：2020-11-10

申请号：US16062572

申请日：2016-12-08

Applicant: USUI CO., LTD.

Inventor： Tetsunobu Suzuki ,  Hidetaka Ito ,  Yoshiyuki Serizawa

IPC: B01D45/00 ,  B01D45/16 ,  F02M35/10 ,  B01D45/12 ,  F02M26/50 ,  B04C3/02 ,  B04C3/06 ,  F02M35/022 ,  B04C3/00 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22

Abstract: A gas-liquid separator includes an inlet pipe and an inner pipe. The inlet pipe receives a swirling flow generating ribbon, and includes an exhaust port through which a separated gas flows out and a drain port through which a separated liquid flows out. The outer diameter of the inner pipe is smaller than the inner diameter of the inlet pipe. An end of the inner pipe is inserted into the exhaust port and is open at a location downstream of the swirling flow generating ribbon. A terminal end of the swirling flow generating ribbon includes a first terminal edge and a second terminal edge. The first and second terminal edges connect a first terminal end point, a second terminal end point, and a middle terminal end point.

公开(公告)号：US20200277919A1

公开(公告)日：2020-09-03

申请号：US16759183

申请日：2018-10-17

Applicant: USUI CO., LTD.

Inventor： Tetsunobu SUZUKI ,  Hidetaka ITO

IPC: F02M26/35 ,  F02M26/05 ,  F02M26/06 ,  F02M26/19 ,  F02M35/10

Abstract: A gas-liquid separator includes an inlet pipe and an inner pipe. The inlet pipe includes a swirling flow generating member therewithin, and a first drain port through which the liquid exits. The inner pipe includes an opening at an end which is inserted into an end of the inlet pipe. The swirling flow generating member includes a vane supporting portion extending along an axis line of the inlet pipe, and stator vanes provided on an outer circumferential surface of the vane supporting portion. The vane supporting portion has a conical shape whose diameter gradually increases from a fluid entering side to a fluid exiting side of the gas-liquid two-phase fluid. The stator vanes surround the outer circumference with inclining relative to the axis line of the inlet pipe.