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1. WO2017169530 - PRESSURE REGULATOR AND FUEL SUPPLY DEVICE

Publication Number WO/2017/169530
Publication Date 05.10.2017
International Application No. PCT/JP2017/008695
International Filing Date 06.03.2017
IPC
F02M 37/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F16K 17/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
06with special arrangements for adjusting the opening pressure
CPC
F02M 37/0029
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
0023Valves in the fuel supply and return system
0029Pressure regulator in the low pressure fuel system
F02M 37/0052
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
0047Layout or arrangement of systems for feeding fuel
0052Details on the fuel return circuit; Arrangement of pressure regulators
F16K 17/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
06with special arrangements for adjusting the opening pressure
Applicants
  • 株式会社デンソー DENSO CORPORATION [JP]/[JP]
Inventors
  • 林 宣博 HAYASHI Norihiro
Agents
  • 金 順姫 JIN Shunji
Priority Data
2016-06931830.03.2016JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PRESSURE REGULATOR AND FUEL SUPPLY DEVICE
(FR) RÉGULATEUR DE PRESSION ET DISPOSITIF D'ALIMENTATION EN CARBURANT
(JA) プレッシャレギュレータ及び燃料供給装置
Abstract
(EN)
A pressure regulator (26) wherein a valve body nozzle (275) is supported on a diaphragm (273) partitioning an inlet section (27) and an outlet section (28), and branch fuel from a fuel flow passage (25a) to the inlet section (27) is sprayed into the outlet section (28) through the valve body nozzle (275), thereby driving open the valve body nozzle (275) in resistance to an adjustment spring (284). The outlet section (28) is equipped with: an inner cover (282), wherein the adjustment spring (284) is accommodated in an inside space (282a) that exerts negative pressure on the diaphragm (273), a first communication hole (285) opposing the valve body nozzle (275) is formed, and a second communication hole (286) farther outside in the radial direction than the first communication hole (285) is formed; and an outer cover (280), which covers the inner cover (282), thereby forming between the inner cover (282) and the outer cover a fuel space (280a) communicating with the inside space (282a) through the communication holes (285, 286), and which discharges the branch fuel from the fuel space (280a).
(FR)
L'invention concerne un régulateur de pression (26), dans lequel régulateur une buse de corps de vanne (275) est portée sur un diaphragme (273) divisant une section d'entrée (27) et une section de sortie (28), et un carburant de ramification à partir d'un passage d'écoulement de carburant (25a) jusqu'à la section d'entrée (27) est pulvérisé dans la section de sortie (28) à travers la buse de corps de vanne (275), entraînant ainsi l'ouverture de la buse de corps de vanne (275) en résistance à un ressort de réglage (284). La section de sortie (28) comporte : un capot interne (282), le ressort de réglage (284) étant reçu dans un espace interne (282a) qui exerce une pression négative sur le diaphragme (273), un premier trou de communication (285) opposé à la buse de corps de vanne (275) étant formé, et un second trou de communication (286) plus loin à l'extérieur dans la direction radiale que le premier trou de communication (285) étant formé ; et un capot externe (280), qui recouvre le capot interne (282), de façon à former ainsi entre le capot interne (282) et le capot externe un espace de carburant (280a) communiquant avec l'espace interne (282a) par l'intermédiaire des trous de communication (285, 286), et qui évacue le carburant de dérivation à partir de l'espace de carburant (280a).
(JA)
プレッシャレギュレータ(26)では、インレット部(27)とアウトレット部(28)とを仕切るダイヤフラム(273)に弁体ノズル(275)が支持され、燃料流通路(25a)からインレット部(27)への分岐燃料が弁体ノズル(275)を通してアウトレット部(28)に噴出されることで、調整スプリング(284)に抗して弁体ノズル(275)が開弁駆動される。アウトレット部(28)は、負圧をダイヤフラム(273)に作用させる内側空間(282a)に調整スプリング(284)が収容され、弁体ノズル(275)と対向させて第一連通孔(285)を形成し、第一連通孔(285)よりも径方向外側に第二連通孔(286)を形成の内カバー(282)と、内カバー(282)を覆うことで、連通孔(285,286)を通じて内側空間(282a)に連通の燃料空間(280a)を内カバー(282)との間に形成し、燃料空間(280a)から分岐燃料を排出させる外カバー(280)とを備える。
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