公开(公告)号：JP2001271950A

公开(公告)日：2001-10-05

申请号：JP2000085413

申请日：2000-03-24

Applicant: DENSO CORP ,  KYOSAN DENKI KK

Inventor： FURUKAWA TAKASHI ,  SAKAI TATSUO ,  TAKEUCHI KAZUMI

IPC: F16K17/04 ,  F16K17/06

Abstract: PROBLEM TO BE SOLVED: To solve problems of a conventional relief valve used for a fuel pipe of a fuel injector, manufactured by cutting a solid material, producing many wastes, and having no choice but discarding the all of them as the wastes, and if the set pressure is deviated in a reinspection after setting an adjuster in a prescribed position. SOLUTION: A valve body 3 is manufacture of a pipe material by plastic working, a nozzle 2 with a valve seat is calked to the tip inside, a ball valve 13, a valve holder 14, and a coil sprig 15 are inserted in the valve body 3, and the adjuster 16 is calked in a position of a prescribed set pressure of the coil spring. When inspecting a relief pressure afterward, the length can be finely adjusted by pressurizing and contracting a cylinder part 26 in the circumference of the coil spring 15. In fitted to the external machine, a gasket seal 25 is applied to one end face of a flange 7 in the tip of the valve body 3, while the end of a body holder 6 is applied to the other end, and the valve body is pressurized while rotated, thereby fitted thereto.

公开(公告)号：JPH11270724A

公开(公告)日：1999-10-05

申请号：JP7184198

申请日：1998-03-20

Applicant: DENSO CORP

Inventor： FURUKAWA TAKASHI ,  OMORI RYUTARO ,  SAKAI TATSUO

IPC: F02M37/00 ,  F02M55/00 ,  F02M55/02 ,  F16K17/04

Abstract: PROBLEM TO BE SOLVED: To provide a pressure control valve capable of preventing an excessive fluid pressure rise and accurately controlling the fluid pressure under a high pressure with a simple constitution. SOLUTION: An intrinsic frequency of a spring-mass system constituted of a weight 40 and a compression spring 41 is set almost equal to a vibration frequency transmitted to a housing 17 when an abutting part 20a of valve member 20 is separated from a valve seat 19. Consequently, when a pressure of fuel accumulated in a fuel delivery pipe exceeds a prescribed pressure, the spring-mass system constituted by the weight 40 and the compression spring 41 resonates, the weight 40, vibrated in a direction of arrow mark X, collides against a movable core 30 to apply impact to the valve member 20 in an axial direction. In this way, slide resistance in a slide part 24 of the valve member 20 is reduced and the valve member 20 is quickly lifted to release fuel pressure. Accordingly, an overshoot and abnormal rise of the fuel pressure are quickly reduced to prevent an excessive rise of the fuel pressure, and the fuel pressure can be accurately controlled.

公开(公告)号：JPH09107058A

公开(公告)日：1997-04-22

申请号：JP26406895

申请日：1995-10-12

Applicant: DENSO CORP

Inventor： KADOTA SHIGERU ,  FURUKAWA TAKASHI ,  KAWAGUCHI SEIJI ,  SUZUKI MASAHIKO

IPC: H01L23/427

Abstract: PROBLEM TO BE SOLVED: To provide a boiling cooling device in which the flow of refrigerant vapor and the flow of condensed liquid may be isolated from each other at a low cost. SOLUTION: An extruded member 7 constituting a refrigerant tank 3 is provided in a vertically long flat shape, and a vapor path and a condensed liquid path are formed through the extruded member 7 in the longitudinal direction thereof. On one wall surface of the extruded member 7, an outflow port 9a of the vapor path and an inflow port 10a of the condensed liquid path are opened above the mounting position of an IGBT module 2 fixed at the uppermost part. The inflow port 10a is formed at a position lower than the outflow port 9a. On the wall surface of the extruded member 7 on which the inflow port 10a and the outflow port 9a are formed, a lower plate 15 of a radiator 4 is joined to cover the inflow port 10a and the outflow port 9a. The inflow port 10a and the outflow port 9a are opened in a lower interconnecting chamber 18 formed by the lower plate 15 and the wall surface of the extruded member 7.

公开(公告)号：JP2004019540A

公开(公告)日：2004-01-22

申请号：JP2002175268

申请日：2002-06-17

Applicant: Denso Corp ,  株式会社デンソー

Inventor： FURUKAWA TAKASHI ,  MURAMATSU TOSHIHIKO

IPC: F02M37/00 ,  F02M69/00 ,  F16K17/04

Abstract: PROBLEM TO BE SOLVED: To provide a fuel pressure control valve for improving the pressure-flow rate characteristics without increasing the back pressure as the fuel flow rate is increased.
SOLUTION: This fuel pressure control valve comprises a fuel flow storage body 40 having a fuel inlet 40a to lead the fuel to be adjusted and a fuel outlet 40b to lead excessive fuel out of the fuel to be adjusted, a valve closing body 10, a valve seat body 20 in cooperation with the valve closing body 10 and a flexible diaphragm 30 having the valve seat body substantially in the center and demarcating and partitioning the fuel flow storage body 40 into a first fuel chamber 51 on the side to be loaded by fuel to be adjusted and a second fuel chamber 52 to lead excessive fuel in the the fuel flow storage body 40. A routing passage 60 having an introduction part 61 which extends in the fuel flow storage body 40 from a fuel outlet 40b to form a predetermined space δj from the valve seat body 20 to the downward side of the fuel is provided on the valve seat body 20.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003278618A

公开(公告)日：2003-10-02

申请号：JP2002085872

申请日：2002-03-26

Applicant: Denso Corp ,  Kyosan Denki Co Ltd ,  京三電機株式会社 ,  株式会社デンソー

Inventor： FURUKAWA TAKASHI ,  MURAMATSU TOSHIHIKO ,  TAKASE NOBUHITO

IPC: F02M37/00 ,  F02M69/00 ,  F16K17/06

CPC classification number: Y02T10/123

Abstract: PROBLEM TO BE SOLVED: To provide a fuel pressure regulating valve capable of reducing noise due to boiling under reduced pressure by itself.
SOLUTION: This fuel pressure regulating valve 1 is connected to a fuel supply passage between a fuel pump and a fuel injection valve and regulates pressure of the fuel supply passage by returning surplus fuel to a fuel tank. The fuel pressure regulating valve 1 is provided with a housing 2 for partitioning a high pressure chamber 203 communicated with the fuel supply passage and a low pressure chamber 202 communicated with the fuel tank, a bush 3 having a pressure releasing passage 30 for communicating the high pressure chamber 203 with the low pressure chamber 202, and a valve member 5 attachably/detachably arranged at an upstream end of the bush 3. The bush 3 has a pressure equalizing partition wall part 31 having a plurality of partitioned communicating passages to interrupt the pressure releasing passage 30 and to branch an interruption upstream side and an interruption downstream side for communication. The road length of the communicating passage is set to be ≥0.15 mm and ≤1.5 mm.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种能够减轻由于自身在减压下沸腾的噪音的燃料压力调节阀。 解决方案：该燃料压力调节阀1连接到燃料泵和燃料喷射阀之间的燃料供给通道，并通过将多余的燃料返回到燃料箱来调节燃料供给通道的压力。 燃料压力调节阀1设置有用于分隔与燃料供给通道连通的高压室203的壳体2和与燃料箱连通的低压室202，具有用于连通高压室的压力释放通道30的衬套3 具有低压室202的压力室203和可装卸地布置在衬套3的上游端的阀构件5.衬套3具有压力分隔壁部31，其具有多个分隔连通通道以中断压力 释放通道30并且分支中断上游侧和中断下游侧用于通信。 连通通道的道路长度设定为≥0.15mm，≤1.5mm。 版权所有（C）2004，JPO

公开(公告)号：JPH09324668A

公开(公告)日：1997-12-16

申请号：JP14618696

申请日：1996-06-07

Applicant: DENSO CORP

Inventor： TASHIRO HIROSHI ,  MATSUMOTO HIRAKI ,  FURUKAWA TAKASHI ,  YAGI TOYOJI

IPC: F02D29/02 ,  B60H1/32 ,  F02D29/04

Abstract: PROBLEM TO BE SOLVED: To enable interior temperature and in-refrigerator temperature to be kept within predetermined temperature requirements while the car is stopped by driving a compressor by means of an auxiliary power system even while a main power system is stopped with the vehicle stopping at a signal or the like, using a device which stops the main power system when the vehicle is stopped. SOLUTION: If such requirements that the speed of an internal combustion engine 1 be 1,000rpm or less, that an idle switch 15b be turned on, that the vehicle speed be 10km/h or less, that a clutch switch 39c be turned on, that cooling water temperature be 60 deg.C or more, and that a door switch 39a be turned on, are met, an electronic control unit 37 determines that internal combustion engine stopping requirements are met, and cuts off the fuel supply. In this case, an air conditioner switch 39d is turned on, a crank clutch 44 is turned off, and if interior temperature Tr is higher than a first reference value Tsh, a compressor clutch 42 is turned on and a compressor 43 is driven by the motor- driven action of a rotor 40 to continue operation of the air conditioner to achieve appropriate interior air conditioning.