US20050263198A1 - Fluid coupling - Google Patents

Fluid coupling Download PDF

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Publication number
US20050263198A1
US20050263198A1 US11/141,384 US14138405A US2005263198A1 US 20050263198 A1 US20050263198 A1 US 20050263198A1 US 14138405 A US14138405 A US 14138405A US 2005263198 A1 US2005263198 A1 US 2005263198A1
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United States
Prior art keywords
fluid
fluid coupling
pulsation
bellows
rubber
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.)
Abandoned
Application number
US11/141,384
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English (en)
Inventor
Seiji Kamada
Hiroshi Kumagai
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.)
Nissan Motor Co Ltd
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Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Assigned to NISSAN MOTOR CO., LTD. reassignment NISSAN MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMADA, SEIJI, KUMAGAI, HIROSHI
Publication of US20050263198A1 publication Critical patent/US20050263198A1/en
Priority to US11/941,310 priority Critical patent/US7665484B2/en
Abandoned legal-status Critical Current

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    • 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
    • F02M37/0041—Means for damping pressure pulsations
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05—Buffers therefor
    • F16L55/052—Pneumatic reservoirs
    • F16L55/053—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention generally relates to a fluid coupling, and more particularly, to a fluid coupling for use in a fuel supply system of a vehicle.
  • Japanese Patent Application Publication No. H09(1997)-195885 discloses a fuel supply system of a fuel returnless type.
  • a fluid coupling includes: a body formed with a fluid channel; and a pulsation absorber provided in the fluid channel, and arranged to deform in a same direction as fluid to flow in the fluid channel pulsates, and thereby to absorb pulsation of the fluid.
  • FIG. 1 is a sectional view showing a fluid coupling according to an embodiment of the present invention.
  • FIG. 2 is a sectional view showing a fluid coupling according to another embodiment of the present invention.
  • FIG. 3 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • FIG. 4 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • FIG. 5 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • FIG. 6 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • FIG. 7 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • FIG. 8 is a sectional view showing a fluid coupling according to still another embodiment of the present invention.
  • FIG. 9 is a sectional view showing a pulsation absorber applicable to the fluid coupling of FIG. 8 , according to still another embodiment of the present invention.
  • FIG. 10 is a diagram showing a fuel supply system of a return type.
  • FIG. 11 is a diagram showing a fuel supply system of a returnless (non-return) type.
  • FIG. 10 is a diagram showing a fuel supply system of a return type.
  • fuel is supplied from a fuel tank (not shown in FIG. 10 ) via an underfloor supply line 101 and a supply tube 102 to a delivery pipe 103 .
  • the fuel is supplied from delivery pipe 103 to fuel injectors 104 of each cylinder.
  • Delivery pipe 103 is equipped with a pressure regulator 105 .
  • Pressure regulator 105 maintains constant pressure in delivery pipe 103 by returning surplus fuel via a return tube 106 and an underfloor return line 107 to the fuel tank.
  • FIG. 11 is a diagram showing a fuel supply system of a returnless (non-return) type.
  • fuel is supplied from a fuel tank (not shown in FIG. 11 ) via underfloor supply line 101 and supply tube 102 to delivery pipe 103 . Then, the fuel is supplied from delivery pipe 103 to fuel injectors 104 .
  • Delivery pipe 103 is equipped with a pulsation damper 108 . Pulsation damper 108 damps pulsation, and noise of pulsation, of the fuel which originate from a discharging action of a fuel pump or a fuel injection action of fuel injectors 104 .
  • fluid couplings or quick connectors 110 are each provided between supply line 101 and supply tube 102 , between supply tube 102 and delivery pipe 103 , between pressure regulator 105 and return tube 106 , and between return tube 106 and return line 107 .
  • fluid couplings 110 are each provided between supply line 101 and supply tube 102 , and between supply tube 102 and delivery pipe 103 .
  • each of fluid couplings 110 straight type or elbow type, is made of metal and/or resin, and includes one or two O rings in a joining portion.
  • the fuel supply system of the returnless type requires an attaching portion, such as a flange, for joining pulsation damper 108 to delivery pipe 103 , and an arrangement for sealing the joining part.
  • the fuel supply system of the returnless type may have a complex structure, and cannot easily be reduced in cost. Besides, such fuel supply system of the returnless type cannot easily be laid out in a small space in an engine room.
  • FIG. 1 is a sectional view showing a fluid coupling A 1 according to an embodiment of the present invention.
  • fluid couplings or quick connectors
  • Each of fluid couplings (or quick connectors) of the following embodiments is applicable to joint between supply tube 102 (a resin tube T) and delivery pipe 103 (a metal pipe P) in the fuel supply system of the returnless type of FIG. 11 .
  • the fluid couplings are not limited to the following embodiments in positioning and detailed structure, and may be applicable as modifications and variations of such embodiments.
  • Fluid coupling A 1 of FIG. 1 is a straight type, and includes one or first joining portion J 1 , and the other or second joining portion J 2 provided integrally with first joining portion J 1 .
  • First joining portion J 1 and second joining portion J 2 form a body of fluid coupling A 1 .
  • First joining portion J 1 includes two O rings 1 and a back-up ring 2 .
  • O rings 1 and back-up ring 2 are attached to an inside surface of first joining portion J 1 .
  • Second joining portion J 2 includes a projecting portion 3 . Projecting portion 3 for retaining a tube is formed on an outer circumference of second joining portion J 2 .
  • Metal pipe P delivery pipe
  • resin tube T supply tube
  • first joining portion J 1 and second joining portion J 2 are connected with first joining portion J 1 and second joining portion J 2 , respectively, in an assembled state.
  • metal pipe P together with a spacer 4 is fit into first joining portion J 1
  • resin tube T is fit over second joining portion J 2 .
  • the body of fluid coupling A 1 is formed by material resistant to fuel.
  • the body of fluid coupling A 1 is formed by material composed mainly of a resin selected from a group consisting of polyamide, polyolefin, polysulfide, fluorocarbon resin, polyester, polyacetal and polyketone.
  • the body of fluid coupling A 1 is formed with a fluid channel 5 extending through the body of fluid coupling A 1 .
  • Fluid coupling A 1 includes a support 6 , and a pulsation absorber provided in fluid channel 5 .
  • the pulsation absorber of this embodiment is a bellows 7 .
  • support 6 is fixed in fluid channel 5
  • bellows 7 is supported by support 6 .
  • Pulsation absorber or bellows 7 is arranged to deform in a same direction as fluid to flow in fluid channel 5 pulsates, and thereby absorb the pulsation of the fluid.
  • a part or first part of fluid channel 5 at which bellows 7 is provided has a section smaller than a section of other part or second part of fluid channel 5 .
  • Support 6 is formed by material of the same kind as the material forming the body of fluid coupling A 1 .
  • support 6 is formed by material composed mainly of glass fiber reinforced polyamide 12 .
  • Support 6 is formed with at least one opening to pass the fluid through the opening.
  • Support 6 is fixed to the body of fluid coupling A 1 by rotary welding.
  • Bellows 7 is formed by resin or rubber.
  • bellows 7 is formed by polyamide 12 , and molded by blow molding. Bellows 7 is joined to support 6 air-tightly by welding, and is arranged to act as an air spring.
  • bellows 7 may be formed by a thermoplastic resin, such as a polyamide-based thermoplastic resin, a polyolefin-based thermoplastic resin, a fluorocarbon-based thermoplastic resin, a polyester-based thermoplastic resin, or a polysulfide-based thermoplastic resin.
  • Bellows 7 may also be formed by a thermoplastic elastomer, or a rubber, such as a fluorocarbon-based rubber, a nitrile-based rubber, or an acrylic-based rubber.
  • pulsation absorber or bellows 7 is provided in fluid channel 5 , and is arranged to deform in the same direction as the pulsation of the fluid to flow in fluid channel 5 , and thereby absorb the pulsation of the fluid effectively.
  • pulsation absorber or bellows 7 confronts a propagation direction of the pulsation of the fluid, in an assembled state in the fuel supply system or fluid delivery system.
  • fluid coupling A 1 of this embodiment includes pulsation absorber or bellows 7 provided in fluid channel 5 .
  • fluid coupling A 1 of this embodiment does not require an additional space for a pulsation absorber.
  • pulsation absorber or bellows 7 is arranged to act as air spring. Therefore, fluid coupling A 1 has a simple structure having a small size and a small number of elements, and is capable of damping the pulsation of the fluid occurring in the fuel supply system.
  • the fuel supply system of the returnless type of FIG. 11 can have a structure without pulsation damper 108 , and thus can be reduced in weight and cost, and can be easily laid out in a limited space in an engine room.
  • pulsation absorber or bellows 7 of fluid coupling A 1 of this embodiment is formed by resin or rubber.
  • bellows 7 is light in weight and low in cost, and has a property of deforming efficiently to absorb the pulsation of the fluid effectively. Additionally, since resin or rubber exhibits an excellent formability, bellows 7 can be formed easily to have a desired spring constant.
  • support 6 of fluid coupling A 1 of this embodiment is fixed to the body of fluid coupling A 1 by rotary welding, and bellows 7 is joined to support 6 by welding.
  • these elements can be joined to one another easily and securely without using joining parts. Therefore, the structure of fluid coupling A 1 can be further simplified and reduced in weight.
  • fluid coupling A 1 of this embodiment may be applicable between supply line 101 and supply tube 102 in the fuel supply system of the returnless type of FIG. 11 .
  • supply line 101 may be connected with first joining portion J 1 , and bellows 7 can absorb pulsation of the fuel which originates from the discharging action of the fuel pump.
  • fluid coupling A 1 of this embodiment is formed with fluid channel 5 , and the section of the part of fluid channel 5 at which bellows 7 is provided is smaller than the section of the other part of fluid channel 5 .
  • the thus-narrowed part of fluid channel 5 acts as an orifice, and thereby is capable of reducing the propagation of the pulsation of the fuel.
  • FIG. 2 is a sectional view showing a fluid coupling A 2 according to another embodiment of the present invention. Elements in FIG. 2 that are identical or equivalent to the elements shown in FIG. 1 are indicated by the same reference marks, and may not be described in detail in this part of description.
  • Fluid coupling A 2 of FIG. 2 is an elbow type, and includes first joining portion J 1 , and second joining portion J 2 provided integrally with first joining portion J 1 .
  • Second joining portion J 2 is arranged substantially orthogonal to first joining portion J 1 so that first joining portion J 1 and second joining portion J 2 form an elbow portion.
  • Fluid coupling A 2 also includes an extension portion E extending from the elbow portion coaxially with first joining portion J 1 .
  • Extension portion E has an open end opening in the coaxial direction or opposite direction from the elbow portion, and includes a support 11 , and a pulsation absorber arranged to absorb pulsation of fluid to flow in fluid channel 5 in an assembled state.
  • Support 11 of this embodiment is a plate member formed by glass fiber reinforced polyamide 12 .
  • the pulsation absorber of this embodiment is attached to support 11 , and support 11 is fixed to the open end of extension portion E by rotary welding so as to block up the open end of extension portion E.
  • the pulsation absorber of this embodiment includes bellows 7 and an elastic member.
  • Bellows 7 of this embodiment is formed by resin or rubber, as in the foregoing embodiment.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment is a molded member 12 formed by resin or rubber. Molded member 12 of this embodiment is made of fluoro rubber compression-molded in a cylindrical form, and is provided coaxially with bellows 7 .
  • molded member 12 may be made of rubber of various types, such as nitrile rubber, acrylic rubber, silicone rubber, fluorinated silicone rubber, hydrin rubber, urethane rubber, ethylene-propylene rubber, or butyl rubber. Molded member 12 may also be made of resin of various types, such as polyolefin, polysulfide, fluorocarbon resin, polyester, polyacetal, polyketone, polyvinyl chloride, or thermoplastic elastomer.
  • the pulsation absorber is composed of bellows 7 and molded member 12 arranged to act respectively as air spring and a rubber spring by deforming springily or elastically, or expanding and contracting together. Additionally, bellows 7 and molded member 12 each formed by resin or rubber exhibit high damping effects. Therefore, the pulsation absorber of this embodiment can absorb the pulsation of the fluid highly effectively even when pressure of the fluid is relatively high.
  • the pulsation absorber of this embodiment is composed of bellows 7 and molded member 12 each formed by resin or rubber, the pulsation absorber can be formed to have a desired spring constant with an increased degree of freedom, and thereby can adapt to various intensities of pressure and pressure pulsation in the fluid.
  • fluid coupling A 2 of this embodiment has a simple structure having a small size and a small number of elements, as in the foregoing embodiment, and the fuel supply system adopting fluid coupling A 2 of this embodiment can be reduced in weight and cost, and can be easily laid out in a limited space in an engine room.
  • FIG. 3 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 3 includes bellows 7 and an elastic member.
  • Bellows 7 is formed by resin or rubber.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment includes a hollow-molded member 13 . Hollow-molded member 13 is formed by resin or rubber in a bellows form.
  • FIG. 4 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 4 includes bellows 7 and an elastic member.
  • Bellows 7 is formed by resin or rubber.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment includes a foam-molded member 14 .
  • Foam-molded member 14 is formed by resin or rubber containing numerous bubbles, and shaped in a cylindrical form.
  • FIG. 5 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 5 includes bellows 7 and an elastic member.
  • Bellows 7 is formed by resin or rubber.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment includes molded member 12 . Molded member 12 is formed by resin or rubber in a cylindrical form.
  • Support 11 of this embodiment is formed with an air hole 11 a exposing an inside part of bellows 7 to open air. When bellows 7 undergoes load of the pulsation of the fluid, bellows 7 takes air in and out of the inside part via air hole 11 a. Therefore, the pulsation absorber of this embodiment can obtain increased damper effects.
  • FIG. 6 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 6 includes bellows 7 and an elastic member.
  • Bellows 7 is formed by resin or rubber.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment includes a molded member 15 and a coil spring 16 . Molded member 15 is formed by resin or rubber in a thin cylindrical form. Coil spring 16 is disposed concentrically outside molded member 15 .
  • FIG. 7 is a sectional view showing a pulsation absorber applicable to the fluid coupling, according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 7 includes bellows 7 and an elastic member.
  • Bellows 7 is formed by resin or rubber.
  • the elastic member of this embodiment is provided inside bellows 7 , and is arranged to deform springily or elastically, or expand and contract, together with bellows 7 .
  • the elastic member of this embodiment includes a composite-molded member 17 .
  • Composite-molded member 17 includes coil spring 16 insert-molded in resin or rubber.
  • the pulsation absorbers of FIGS. 3 ⁇ 7 are applicable to fluid couplings A 1 and A 2 of FIGS. 1 and 2 , and are capable of obtain similar effects and advantages as in the foregoing embodiments.
  • the pulsation absorber composed of bellows 7 and at least one of the molded members and the coil spring can be formed to have a desired spring constant with a further increased degree of freedom.
  • the pulsation absorbers of FIGS. 3 and 5 ⁇ 7 may use a foam-molded member as shown in FIG. 4 in place of each of the molded members of FIGS. 3 and 5 ⁇ 7 .
  • the pulsation absorbers can obtain a desired spring constant by varying foaming rates of the foam-molded member.
  • each of the molded members may be impregnated with fluid such as oil, and thereby can be formed to have an adjusted ability to absorb the pulsation while being prevented from deterioration.
  • air hole 11 a of support 11 of FIG. 5 is applicable to the foregoing embodiments and the following embodiments.
  • FIG. 8 is a sectional view showing a fluid coupling A 3 according to still another embodiment of the present invention. Elements in FIG. 8 that are identical or equivalent to the elements shown in FIGS. 1 and 2 are indicated by the same reference marks, and may not be described in detail in this part of description.
  • Fluid coupling A 3 of FIG. 8 is a straight type, and includes first joining portion J 1 , and second joining portion J 2 provided integrally with first joining portion J 1 .
  • the body of fluid coupling A 3 is formed integrally with a damping chamber F.
  • Damping chamber F is located at a middle part of the body and branches off from fluid channel 5 .
  • Fluid coupling A 3 of this embodiment includes pulsation absorber disposed in damping chamber F, and arranged to absorb pulsation of fluid to flow in fluid channel 5 in an assembled state.
  • the pulsation absorber of this embodiment is bellows 7 .
  • Damping chamber F communicates with fluid channel 5 via a communicating passage 8 , and is formed with an open end opening in opposite direction from communicating passage 8 .
  • Communicating passage 8 is formed narrower than fluid channel 5 , or is formed to have an internal sectional size smaller than fluid channel 5 .
  • Bellows 7 is attached to support 11 , and support 11 is fixed to the open end of damping chamber F, as in the foregoing embodiment.
  • fluid coupling A 3 of this embodiment is arranged to absorb the pulsation of the fluid effectively by bellows 7 deforming, or expanding and contracting, springily or elastically, and damping chamber F acting as a Helmholtz resonating chamber.
  • Damping chamber F branches off perpendicularly from fluid channel 5 , and pulsation absorber or bellows 7 is disposed in thus-branched damping chamber F.
  • the pulsation absorber of this embodiment does not hamper the flow of the fluid, and therefore can avoid pressure loss of the fluid.
  • fluid coupling A 3 of this embodiment has a simple structure having a small size and a small number of elements, as in the foregoing embodiments, and the fuel supply system adopting fluid coupling A 3 of this embodiment can be reduced in weight and cost, and can be easily laid out in a limited space in an engine room.
  • the pulsation absorbers of FIGS. 2 ⁇ 7 are applicable to fluid coupling A 3 of FIG. 8 .
  • FIG. 9 is a sectional view showing a pulsation absorber applicable to fluid coupling A 3 of FIG. 8 , according to still another embodiment of the present invention.
  • the pulsation absorber of FIG. 9 includes a diaphragm 18 and an elastic member.
  • Diaphragm 18 is formed by resin or rubber, and is positioned to partition damping chamber F.
  • the elastic member of this embodiment is arranged to deform springily or elastically, or expand and contract, in conjunction with deformation of diaphragm 18 .
  • the elastic member of this embodiment is a coil spring 19 provided between diaphragm 18 and support 11 .
  • the fluid coupling adopting the pulsation absorber of this embodiment can obtain similar effects and advantages as in the foregoing embodiments.
  • the pulsation absorber of FIG. 9 is applicable to fluid coupling A 2 of FIG. 2 of the elbow type.
  • the pulsation absorber of this embodiment may adopt each of the elastic members of FIGS. 2 ⁇ 7 in place of coil spring 19 of FIG. 9 .
  • Diaphragm 18 and the elastic member (molded member) may be formed integrally from identical material by integral molding. Thereby, the fluid coupling can have a structure with a small number of elements, and can be reduced in cost.
  • the fluid coupling includes: means ( 5 ) for passing fluid; and means ( 7 ; 7 , 12 ; 7 , 13 ; 7 , 14 ; 7 , 15 , 16 ; 7 , 17 , 16 ; 18 , 19 ) for absorbing pulsation of the fluid by deforming in a same direction as the fluid pulsates.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pipe Accessories (AREA)
  • Fuel-Injection Apparatus (AREA)
US11/141,384 2004-06-01 2005-06-01 Fluid coupling Abandoned US20050263198A1 (en)

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US11/941,310 US7665484B2 (en) 2004-06-01 2007-11-16 Fluid coupling

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JP2004-163141 2004-06-01
JP2004163141A JP4641387B2 (ja) 2004-06-01 2004-06-01 流体継手

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US11/141,384 Abandoned US20050263198A1 (en) 2004-06-01 2005-06-01 Fluid coupling
US11/941,310 Expired - Fee Related US7665484B2 (en) 2004-06-01 2007-11-16 Fluid coupling

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EP (1) EP1602820A3 (ja)
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US20100178184A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods
US20100178182A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Helical bellows, pump including same and method of bellows fabrication
US7866300B2 (en) * 2006-06-13 2011-01-11 Robert Bosch Gmbh Device for injecting fuel into the combustion chamber of an internal combustion engine
US20130220470A1 (en) * 2012-02-29 2013-08-29 Ti Automotive (Fuldabruck) Gmbh Connector with pressure equalization
CN108138723A (zh) * 2015-09-23 2018-06-08 罗伯特·博世有限公司 用于燃料喷射系统的压力脉动阻尼器以及燃料喷射系统
US20190367176A1 (en) * 2016-12-19 2019-12-05 Safran Aircraft Engines Accumulator on a fuel line of an aircraft
US10731784B2 (en) * 2017-12-01 2020-08-04 Safran Aircraft Engines Accumulator integrated into a fuel line
FR3098867A1 (fr) 2019-07-19 2021-01-22 Psa Automobiles Sa Connecteur rapide pour carburant de vehicule automobile comportant un amortisseur de pulsation

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JP5528838B2 (ja) * 2010-02-05 2014-06-25 本田技研工業株式会社 燃料配管用コネクタ
DE102010030627A1 (de) * 2010-06-29 2011-12-29 Robert Bosch Gmbh Pulsationsdämpferelement für eine Fluidpumpe und zugehörige Fluidpumpe
EP2587107B1 (en) 2010-08-25 2018-07-11 Daikin Industries, Ltd. Hose
US8754161B2 (en) * 2010-08-25 2014-06-17 Daikin Industries, Ltd. Complex-shaped fluororubber formed product
DE102010040612A1 (de) * 2010-09-13 2012-03-15 Siemens Aktiengesellschaft Hydraulischer Temperaturkompensator und hydraulischer Hubübertrager
WO2013107126A1 (zh) * 2012-01-20 2013-07-25 喜临门家具股份有限公司 一种弹力可调式气压弹簧
US20140041635A1 (en) * 2012-08-09 2014-02-13 GM Global Technology Operations LLC Fuel rail connector
JP5595457B2 (ja) * 2012-09-05 2014-09-24 東海ゴム工業株式会社 コネクタ
CN103410644B (zh) * 2013-07-10 2015-10-28 奇瑞汽车股份有限公司 一种燃油脉动缓冲器及应用该缓冲器的油路连接结构
US9874074B2 (en) * 2013-10-17 2018-01-23 Baker Hughes, A Ge Company, Llc Water tight and gas tight flexible fluid compensation bellow
FR3012849B1 (fr) * 2013-11-04 2018-06-01 Nobel Plastiques Dispositif amortisseur de pulsations.
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CN100582546C (zh) 2010-01-20
JP4641387B2 (ja) 2011-03-02
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US7665484B2 (en) 2010-02-23
JP2005344547A (ja) 2005-12-15

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