EP3258118B1 - Vanne - Google Patents

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Publication number
EP3258118B1
EP3258118B1 EP17180336.4A EP17180336A EP3258118B1 EP 3258118 B1 EP3258118 B1 EP 3258118B1 EP 17180336 A EP17180336 A EP 17180336A EP 3258118 B1 EP3258118 B1 EP 3258118B1
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EP
European Patent Office
Prior art keywords
valve
section
flow path
mid
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17180336.4A
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German (de)
English (en)
Other versions
EP3258118A1 (fr
Inventor
James McHattie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies IP Ltd
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Delphi Technologies IP Ltd
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Publication date
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Publication of EP3258118A1 publication Critical patent/EP3258118A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0054—Check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus 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
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system

Definitions

  • the present invention relates to fluid valve, for example a fuel valve for use in a pump assembly of a diesel engine.
  • High pressure diesel fuel pumps inherently create complex flows, often shuttling and with pulsating pressure.
  • valves used to eliminate reverse flow
  • poppet valves and ball valve Examples of currently known valves, used to eliminate reverse flow, are poppet valves and ball valve.
  • these prior art valves have moving parts, and this incurs durability and cost penalties, and also often requires a method of actuation and/or timing.
  • a further known valve as described in US patent application US1329559A (Tesla), comprises a single-piece valve having a maze of switch-backs, allowing almost free flow in one direction, whilst encouraging the formation of eddies in the opposite direction. By creating eddies, the flow is disrupted, accordingly causing a slowing of subsequent flow. This results in a partial fluid-lock effect, which hinders flow considerably.
  • the Tesla valve has limited flexibility due to the single-piece design.
  • the present invention provides, in a first aspect, a valve section according to claim 1.
  • the protruding part of the valve may have an outer profile which comprises curved surfaces. Additionally or alternatively, the bore of the or each second valve portion may comprise a curved profile.
  • the bore of the or each second valve portion may further comprise a curved recess.
  • the valve comprises a single valve section, comprising one second valve portion, wherein an underside face of the first valve portion abuts an upper end face of the second valve portion.
  • the embodiment which is not part of the invention comprises a valve assembly comprising a plurality of second valve portions stacked on top of one another; wherein an underside face of the first valve portion abuts an upper end face of an uppermost second valve portion; and wherein an underside end face of the uppermost second valve portion abuts an upper end face of a further second valve portion.
  • the protruding part of the first valve portion may extend through the bores of all second valve portions.
  • the valve has a cylindrical outer profile.
  • the embodiment which is not part of the invention also comprises a method of assembling a valve assembly, the method comprising:
  • the present invention comprises a valve comprising a valve section body and a central section; the valve body section comprising a first portion, a second portion, and a mid-portion provided between the first portion and the second portion; wherein a fluid flow path is enabled around the central section and between the central section and the valve section body; wherein the flow path comprises a first flow path section of substantially uniform cross-sectional area, provided in the first portion, a second flow path section of substantially uniform cross-sectional area, provided in the second portion, and a flow path of varying cross-sectional area, provided in the mid-portion; and wherein the flow path in the mid-portion is split between a venturi provided by a drilling, and a main mid-portion flow path, and wherein the flow path in the mid-portion is also split by a fork.
  • the valve may comprise a valve section, or may comprises a valve assembly comprising a plurality of valve sections.
  • the present invention provides a valve section and a valve assembly which require no moving parts. Accordingly, the present invention avoids the durability and cost penalties encountered with moving-part prior art valves, and also avoid the necessity for a method of actuation and/or timing required for such prior art valve embodiments.
  • the present invention also provides a modular cartridge system, which is more package-friendly than the prior valve embodiments.
  • the present invention comprises a valve, comprising either a valve portion, or a valve assembly.
  • a first embodiment which is not part of the invention comprises a valve comprising a valve section 2, comprising a first valve portion 4 and a second valve portion 6.
  • the first valve portion 4 comprises an annular end portion 10, and a protruding part 12.
  • the end portion 10 has a central section which comprises cut-outs 14, and a bridge section 18, which connects the protruding part 12 to the end portion 10.
  • the second valve portion 6 comprises an elongated cylindrical member 40, which is provided with a bore 42.
  • the protruding part 12 of the first valve portion 4 is inserted into the bore 42 of the second valve section 4, until an underside face 64 of the end portion 10 of the first valve portion 4 abuts an upper end face 66 of the cylindrical member 40 of the second valve portion 6.
  • the outer diameter of the end portion 10 of the first valve portion 4 is equal to that of the cylindrical member 40, such that the assembled valve section 2 comprises an elongate cylindrical component.
  • a fluid pathway is enabled through the valve section 2 via the cut-outs 14 provided in the end portion 10 of the first valve section 4, and the bore 42 of the second valve section 6. The fluid pathway is therefore provide between the protruding part 12 and the bore 42.
  • the behaviour of fluid passing through the fluid pathway is affected by the varying cross-sectional form of the fluid pathway, which is determined by the external form of the protruding part 12, and by the form of the bore 42, and in particular by curved surfaces of the protruding part 12 and the bore 42, as explained in greater detail below.
  • the protruding part 12 comprises a first, cylindrical portion 20 which extends away from the bridge section 18.
  • a second portion 22, extending from the first portion 20, has a curved outer profile, which increases non-linearly in diameter moving away from the first portion 20, such that an outer surface 24 of the second portion 22 is curved.
  • a third portion 26 extending from the second portion 22 has a maximum diameter, at a junction 28 with the second portion 22, which is equal to a maximum diameter of the second portion 22 at the junction 28. Moving away from the second portion 22, the third portion 26 decreases non-linearly in diameter such that an outer surface 28 of the third portion 26 is also curved.
  • a fourth portion 30 extending from the third portion 26 is cylindrical, having a diameter which is equal to a minimum of the third portion 26.
  • the bore 42 comprises a first section 44, a second section 46, and a third section 48.
  • the first section 44 and the third section 48 are provided towards a first end 50 and second end 52 of the second valve portion 6 respectively, wherein the first end 50 is proximate to, and the second end 52 remote from, the first valve portion 4.
  • the second section 46 of the bore 42 is located between the first section 44 and the third section 48. At a junction 54 with the first section 44, the second section 46 has a diameter which is equal to that of the first section 44. At a junction with the third section 48, the second section 46 has a diameter which is equal to that of the third section 48.
  • the second section 48 Moving from the junction 54 with the first section 44, to a junction 56 with the third section 48, the second section 48 initially increases non-linearly in diameter, and subsequently forms a curved recess 58, adjacent the third section 48.
  • the profile of the second section 46 is therefore curved.
  • valve section 2 In use of the valve section 2, fluid flowing through the valve section 2, initially through the first valve portion 4 and subsequently through the second valve portion 6, i.e. in either a free direction (indicated by arrow A in Figures 2 and 3 ), or a restrictive direction (indicated by arrow B in Figures 2 and 3 ), is guided by the curved outer surfaces of the protruding part 12 of the first valve portion 4, and by the curved profile of the second section 46 of the bore 42 of the second valve portion 6.
  • the recess 58 provides a hair-pin turn in the fluid pathway, which provides a switch-back effect. As a result of following the hair-pin turn provided by the curved recess 58, fluid flow around this point is disrupted. Specifically, the flow is either hindered, or reversed.
  • the disruption of the fluid flow in the region of the recess 58 causes a slowing of approaching fluid flow, and a valve effect is thereby achieved.
  • a valve comprising a valve assembly 100 can be formed by stacking a plurality of second valve portions 6 on top of each other, i.e. such that an upper end face 66 of one second valve portion 6 abuts an underside end face 62 of a further second valve portion 6.
  • a single first valve portion 4 is provided on the top of the stacked second valve portions 6, such that the underside face 64 of the first valve portion 4 abuts the upper end face 66 of the uppermost second valve portion 6 of the stack.
  • the protruding part 12 of the first valve portion 4 may be elongated (with respect to that illustrated in Figures 1 to 3 ), and may be of sufficient length to protrude through the bores 42 of all second valve portions 6 in the stack.
  • the elongated protruding part 12 may comprises a repeated series of the profile of the protruding part 12 illustrated in Figures 1 to 3 , such that the profile of the fluid pathway of the valve portion 2 of Figure 1 is repeated throughout the stacked valve assembly.
  • the effect slowing effect which each valve portion 2 has on fluid flow is cumulative, i.e. a chain of switch-backs created by the stack increases the valve effect.
  • valve section 2 which has no moving parts. Furthermore, as the outer profiles of the valve section 2, and the stacked valve assembly 100, are cylindrical, the valve section 2 or assembly 100 can be inserted into a simple drilling.
  • the present invention can be used to prevent reverse flow from a digital inlet valve from reaching an inlet of a diesel fuel pump. This allows greater control of fuel flow, and therefore a more stabilised inlet pressure / pressure at fuel filter.
  • the profiles of the curved sections of the fluid pathway which is not part of the invention, i.e. the radii and angles of the protruding part 12 and the bore 42, can be selected for optimum performance of the valve portion 2 or assembly 100.
  • Figure 5 is a longitudinal cross-sectional view of a valve in accordance with an embodiment of the present invention.
  • Figure 6 is an axial cross-sectional view of the embodiment taken at section 6-6 as indicated on Figure 5 , i.e. through a restricted section 204 of the valve section 302.
  • Figure 7 is an axial cross-sectional view of the embodiment taken at section 7-7 as indicated on Figure 5 , i.e. taken at an end 214 of a narrow drilling 202 of the valve section 302.
  • the alternative valve comprises a valve section 302, formed of a valve section body 304 and a central section 312, wherein a fluid flow path 200 is enabled around the central section 312, i.e. between the valve section body 304 and the central section 312.
  • the valve section body comprises a first portion 306, a second portion 308, and a mid-portion 310 provided between the first and second portions 306, 308.
  • Figure 6 is an axial cross-sectional view of the embodiment taken at section 6-6 as indicated on Figure 5 , i.e. through a restricted flow path section 204 provided in the mid-portion 310 of the valve section 302.
  • Figure 7 is an axial cross-sectional view of the embodiment taken at section 7-7 as indicated on Figure 5 , i.e. taken at an end 214 of a narrow drilling 202 provided in the mid-portion 310 of the valve section 302.
  • Figure 8 is a cross-sectional view of a section of the fluid flow path 200 enabled by the alternative valve of Figure 5 .
  • a first flow path section 206 of substantially uniform cross-section area is enabled in the first portion 306 of the valve section body 304.
  • a second flow path section 308 of substantially cross-sectional area is enabled in the second portion 308 of the valve section body 304.
  • a flow path of varying cross-sectional area, including the restricted flow path section 204, is enabled in the mid-portion 310 of the valve section body 304.
  • a switch-back effect is provided by the narrow drilling 202, which becomes a funnel for a venturi.
  • the flow path in the mid-portion 310 is therefore split between a main mid-portion flow path 216, and a flow path through the drilling 202, such that fluid may flow through either the main mid-portion flow path 216, and/or through the drilling 202, as described below.
  • Fuel continues from left to right and is split by a fork 210 provided in the mid-portion 310 of the valve section body 304. Some of the fluid flow is thereby stopped, and creates and area 212 of high pressure which the narrow drilling 202 feeds off. As flow in the narrow drilling 202 has low pressure at the end 214 remote from the high pressure area 212 one end and high pressure at the other, the drilling 202 is fed with fuel, raising the pressure of flow (and the quantity of fluid in the volume of the drilling 202). Once the flow reaches an area where it can slow down, it requires more volume and this slows it further.
  • a plurality of valve sections 302 may be stacked together to form a valve assembly 400 as illustrated in Figure 9 .
  • the effect of pressure change (in either the free or restrictive direction) is increased.
  • valve section 2 first valve portion 4 second valve portion 6 annular end portion 10 protruding part 12 cut-outs 14 bridge section 18 protruding part first portion 20 protruding part second portion 22 protruding part second potion outer surface 24 protruding part third portion 26 section / third portion junction 28 third portion outer surface 28 protruding part fourth portion 30 second valve portion cylindrical member 40 second valve portion bore 42 bore first section 44 bore second section 46 bore third section 48 second valve potion first end 50 second valve potion second end 52 first / second bore portion junction 54 second / third bore potion junction 56 recess 58 second valve portion underside end face 62 first valve portion underside face 64 cylindrical member upper end face 66 valve assembly 100 restrictive flow direction arrow A free flow direction arrow B
  • valve assembly 400 narrow drilling 202 restricted flow path section 204 flow path section 206 flow path section 208 fork 210 high pressure area 212 narrow drilling end 214 main mid-portion flow path 216 valve section 302 valve section body 304 valve section body first portion 306 valve section body second portion 308 valve section body mid-portion 310 central portion 312 valve assembly 400

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Claims (2)

  1. Valve (302, 400) comprenant un corps de section de valve (304) et une section centrale (312) ;
    la section de corps de valve (304) comprenant une première portion (306), une seconde portion (308), et une portion médiane (310) prévue entre la première portion (306) et la seconde portion (308) ;
    dans laquelle un trajet d'écoulement de fluide (200) est rendu possible autour de la section centrale (312) et entre la section centrale (312) et le corps de section de valve (304) ;
    dans laquelle le trajet d'écoulement (200) comprend un premier tronçon de trajet d'écoulement (206) de superficie de section transversale sensiblement uniforme, ménagé dans la première portion (306), un second tronçon de trajet d'écoulement (208) de superficie de section transversale sensiblement uniforme, ménagé dans la seconde portion (308), et un trajet d'écoulement de superficie de section transversale variable, ménagé dans la portion médiane (310) ;
    et dans laquelle le trajet d'écoulement dans la portion médiane (310) est scindé entre un Venturi réalisé par un perçage (202), et un trajet d'écoulement principal de portion médiane (216), et dans lequel le trajet d'écoulement dans la portion médiane (310) et également scindé par une fourche (210).
  2. Assemblage de valve (400) comprenant une pluralité de valves (302) selon la revendication 1, empilées ensemble.
EP17180336.4A 2015-07-03 2016-06-30 Vanne Active EP3258118B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1511665.0A GB201511665D0 (en) 2015-07-03 2015-07-03 Valve
EP16177181.1A EP3112700B1 (fr) 2015-07-03 2016-06-30 Vanne

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP16177181.1A Division-Into EP3112700B1 (fr) 2015-07-03 2016-06-30 Vanne
EP16177181.1A Division EP3112700B1 (fr) 2015-07-03 2016-06-30 Vanne

Publications (2)

Publication Number Publication Date
EP3258118A1 EP3258118A1 (fr) 2017-12-20
EP3258118B1 true EP3258118B1 (fr) 2019-08-07

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP17180336.4A Active EP3258118B1 (fr) 2015-07-03 2016-06-30 Vanne
EP16177181.1A Not-in-force EP3112700B1 (fr) 2015-07-03 2016-06-30 Vanne

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16177181.1A Not-in-force EP3112700B1 (fr) 2015-07-03 2016-06-30 Vanne

Country Status (2)

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EP (2) EP3258118B1 (fr)
GB (1) GB201511665D0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11220980B2 (en) 2019-05-16 2022-01-11 Caterpillar Inc. Fuel system having isolation valves between fuel injectors and common drain conduit
US10895233B2 (en) * 2019-05-16 2021-01-19 Caterpillar Inc. Fuel system having fixed geometry flow regulating valve for limiting injector cross talk
US11280306B1 (en) 2021-01-15 2022-03-22 Caterpillar Inc. Fuel injector having dry-running protection valve and fuel system using same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618925A (en) * 1947-01-31 1952-11-25 Packard Motor Car Co Flow control means for pulse jet combustion units
US3543781A (en) * 1968-06-26 1970-12-01 John A C Kentfield Fluid rectifiers
US6848477B2 (en) * 2003-01-14 2005-02-01 Visteon Global Technologies, Inc. Fuel pressure damping system and method
US9506576B2 (en) * 2009-08-17 2016-11-29 Titan Flow Control, Inc. Check valve apparatuses and methods
US8291976B2 (en) * 2009-12-10 2012-10-23 Halliburton Energy Services, Inc. Fluid flow control device
JP5673864B2 (ja) * 2012-02-02 2015-02-18 トヨタ自動車株式会社 燃料供給装置
US9695654B2 (en) * 2012-12-03 2017-07-04 Halliburton Energy Services, Inc. Wellhead flowback control system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3112700B1 (fr) 2018-03-28
EP3112700A1 (fr) 2017-01-04
EP3258118A1 (fr) 2017-12-20
GB201511665D0 (en) 2015-08-19

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