EP0896131B1 - Single-body reed valve for internal combustion engine, integrally joined with the intake pipe - Google Patents

Single-body reed valve for internal combustion engine, integrally joined with the intake pipe Download PDF

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Publication number
EP0896131B1
EP0896131B1 EP98202603A EP98202603A EP0896131B1 EP 0896131 B1 EP0896131 B1 EP 0896131B1 EP 98202603 A EP98202603 A EP 98202603A EP 98202603 A EP98202603 A EP 98202603A EP 0896131 B1 EP0896131 B1 EP 0896131B1
Authority
EP
European Patent Office
Prior art keywords
engine
valve
valve according
mounting
flange
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.)
Expired - Lifetime
Application number
EP98202603A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0896131A1 (en
Inventor
Alfio Morone
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.)
Adler SpA
Original Assignee
Adler SpA
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 Adler SpA filed Critical Adler SpA
Publication of EP0896131A1 publication Critical patent/EP0896131A1/en
Application granted granted Critical
Publication of EP0896131B1 publication Critical patent/EP0896131B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • F01L3/205—Reed valves

Definitions

  • the present invention relates to a non-return valve with resilient reeds or tongues for the feeding of internal-combustion engines, which is formed as a single body with a flange for mounting on the engine, with a connection duct which can be connected to the device feeding the fresh mixture to the engine, and with means for the pressure outlet downstream of the valve and for supplying lubricant to the engine.
  • the technical problem which is posed, therefore, is that of providing an automatic non-return valve which may be mounted between the devices feeding the mixture to the engine and the engine itself, which consists of a small number of parts and is provided initially with all the components mounted individually in the feed system, and which can be inserted in the engine as a single body by means of a few rapid assembly operations.
  • a non-return valve with resilient reeds or tongues for the feeding of internal-combustion engines characterized in that it comprises, in a single body, a flange for mounting on the engine, a connection element which can be connected to the device feeding the fresh mixture to the engine, mounting means for a pressure outlet downstream of the valve, means for mounting a supply of lubricant to the engine, a seat for housing means for supplying air for adjustment of the engine idles speed and a seat for housing a fuel injector.
  • a non-return reed valve for internal-combustion engines, comprises a valve body 1 which is made preferably of metallic material or a plastic composite and can be connected to the internal-combustion engine (not shown) by means of the flange 2 which is integrally joined to the valve body itself.
  • a sealing element 9 which may have the shape shown in the drawings or have a flat shape is arranged around the flange 2.
  • the valve body 1 comprises, moreover, a series of apertures 4 (Fig. 2) which can be closed by means of resilient reeds or tongues 5 which are fixed to the valve body 1 by means of screws 6, opening of which is limited by by an abutment element 7; sealing gaskets 8 for the resilient reeds or tongues 5 are also provided in the region of said apertures.
  • the valve body 1 is provided with a connection element 3 which can be connected to the device (not shown) for feeding the internal-combustion engine, by means of a sleeve 17.
  • Said element 3 has internal zones 18 and 19 forming connection zones for the flow of the fresh mixture through the valve.
  • the said connection element 3 contains a rubber-mounting pipe 10 for the pressure outlet downstream of the reed valve for operating, for example, a diaphragm pump for the fuel or for operating the fuel shut-off valve, and a rubber-mounting pipe 11 for injecting the lubricating oil into the engine.
  • the rubber-mounting pipes 10 and 11 are generally made of metal and the seat 13 for the fuel injector may be made of metal or a plastic composite.
  • connection element 3 may also have, formed in it, a seat 12 for mounting a device supplying the air for adjustment of the engine idle speed.
  • Fig. 3 shows an embodiment of the valve according to the invention, comprising a seat 13a for mounting a support piece 13 inside which a fuel injector 14 is inserted.
  • FIG. 4 shows a variation of the element for fixing the connection part 3 onto the engine feed device: said fixing element is formed as a flange 15, on which flange 15 the sealing elements 16 are formed.
  • the elastomer used for manufacture of the connection element 3 may be used also for manufacture of the sealing element 16 on the flange 15; alternatively, and in order to obtain a reduction in costs, it is nevertheless possible to manufacture the sealing element 16 alone using an elastomer with superior characteristics compared to those of the elastomer used for the connection element 3.
  • Figs. 5 and 6 show two variations of embodiment of the valve according to the invention which envisage a flow guiding insert 20 which has a suitable shape and is designed to optimize the flow of fresh charge through the valve body.
  • the flow guiding element 20 is respectively formed with its larger dimension positioned parallel to the plane of symmetry of the cusp of the valve (Fig. 5) or with its larger dimension positioned perpendicularly with respect to the said plane of symmetry (Fig. 6).
  • said flow guiding element may be oriented in different angular positions with respect to said plane of symmetry.
  • the section of the intake duct connecting the valve and engine may be manufactured in a precise manner, at a low cost and with the desired shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Check Valves (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP98202603A 1997-08-08 1998-08-01 Single-body reed valve for internal combustion engine, integrally joined with the intake pipe Expired - Lifetime EP0896131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1997MI000606U IT237858Y1 (it) 1997-08-08 1997-08-08 Valvola monocorpo a lamelle per motori a combustionoe internaintegrale con il condotto di alimentazione del combustibile al motore
ITMI970606U 1997-08-08

Publications (2)

Publication Number Publication Date
EP0896131A1 EP0896131A1 (en) 1999-02-10
EP0896131B1 true EP0896131B1 (en) 2003-05-21

Family

ID=11376469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98202603A Expired - Lifetime EP0896131B1 (en) 1997-08-08 1998-08-01 Single-body reed valve for internal combustion engine, integrally joined with the intake pipe

Country Status (5)

Country Link
EP (1) EP0896131B1 (es)
AT (1) ATE241082T1 (es)
DE (1) DE69814756D1 (es)
ES (1) ES2197420T3 (es)
IT (1) IT237858Y1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10465638B2 (en) 2017-05-24 2019-11-05 Ktm Ag Inlet manifold arrangement for a four-stroke combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884363U (ja) * 1981-12-04 1983-06-08 株式会社　共立 気化器継手管
US4879976A (en) * 1987-09-09 1989-11-14 Performance Industries, Inc. Reed valve mechanism for engines
US5076218A (en) * 1991-04-24 1991-12-31 Richard Graziadei Constant velocity intake manifold
JPH05179971A (ja) * 1991-12-27 1993-07-20 Yamaha Motor Co Ltd ２サイクルエンジンのリード弁

Also Published As

Publication number Publication date
ES2197420T3 (es) 2004-01-01
IT237858Y1 (it) 2000-09-29
EP0896131A1 (en) 1999-02-10
DE69814756D1 (de) 2003-06-26
ITMI970606U1 (it) 1999-02-08
ATE241082T1 (de) 2003-06-15

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