US20060131535A1 - Valve spring plate - Google Patents

Valve spring plate Download PDF

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Publication number
US20060131535A1
US20060131535A1 US10/549,734 US54973404A US2006131535A1 US 20060131535 A1 US20060131535 A1 US 20060131535A1 US 54973404 A US54973404 A US 54973404A US 2006131535 A1 US2006131535 A1 US 2006131535A1
Authority
US
United States
Prior art keywords
reinforcement member
valve spring
retainer plate
spring retainer
supporting member
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
US10/549,734
Inventor
Gunther Mendl
Manfred Elbl
Thomas Fuchshuber
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.)
Acument GmbH and Co OHG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to TEXTRON VERBINDUNGSTECHNIK GMBH & CO. OHG. reassignment TEXTRON VERBINDUNGSTECHNIK GMBH & CO. OHG. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUCHSHUBER, THOMAS, ELBL, MANFRED, MENDL, GUNTHER
Publication of US20060131535A1 publication Critical patent/US20060131535A1/en
Assigned to CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT reassignment CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: AVDEL CHERRY LLC, BURKLAND TEXTRON INC., CAMCAR INTELLECTUAL PROPERTIES, LLC, CAMCAR LLC, CHERRY AEROSPACE LLC, ELCO FASTENING SYSYTEMS LLC, FLEXALLOY INC., KING HOLDING CORPORATION, KING HOLDING US CORPORATION, RING SCREW LLC, TFS FASTENING SYSTEMS LLC, WOLVERINE METAL SPECIALTIES, INC.
Assigned to U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT reassignment U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: AVDEL CHERRY LLC, BURKLAND TEXTRON INC., CAMCAR INTELLECTUAL PROPERTIES, LLC, CAMCAR LLC, CHERRY AEROSPACE LLC, ELCO FASTENING SYSYTEMS LLC, FLEXALLOY INC., KING HOLDING CORPORATION, KING HOLDING US CORPORATION, RING SCREW LLC, TFS FASTENING SYSTEMS LLC, WOLVERINE METAL SPECIALTIES, INC.
Assigned to WELLS FARGO FOOTHILL, INC., AS COLLATERAL AGENT reassignment WELLS FARGO FOOTHILL, INC., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: AVDEL CHERRY LLC, BURKLAND TEXTRON INC., CAMCAR INTELLECTUAL PROPERTIES, LLC, CAMCAR LLC, CHERRY AEROSPACE LLC, ELCO FASTENING SYSYTEMS LLC, FLEXALLOY INC., KING HOLDING CORPORATION, KING HOLDING US CORPORATION, RING SCREW LLC, TFS FASTENING SYSTEMS LLC, WOLVERINE METAL SPECIALTIES, INC.
Assigned to ACUMENT GMBH & CO. OHG reassignment ACUMENT GMBH & CO. OHG CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TEXTRON VERBINDUNGSTECHNIK GMBH & CO. OHG
Assigned to CHERRY AEROSPACE LLC, RING SCREW LLC, WOLVERINE METAL SPECIALTIES, INC., TFS FASTENING SYSTEMS LLC, BURKLAND TEXTRON INC., KING HOLDING US CORPORATION, CAMCAR INTELLECTUAL PROPERTIES, LLC, CAMCAR LLC, FLEXALLOY INC., AVDEL CHERRY LLC, ELCO FASTENING SYSTEMS LLC, KING HOLDING CORPORATION reassignment CHERRY AEROSPACE LLC RELEASE OF SECURITY AGREEMENT Assignors: CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT, WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Assigned to CAMCAR LLC, CHERRY AEROSPACE LLC, AVDEL CHERRY LLC, BURKLAND TEXTRON INC., FLEXALLOY INC., RING SCREW LLC, TFS FASTENING SYSTEMS LLC, WOLVERINE METAL SPECIALTIES, INC., ELCO FASTENING SYSTEMS LLC, CAMCAR INTELLECTUAL PROPERTIES, LLC, KING HOLDING US CORPORATION, KING HOLDING CORPORATION reassignment CAMCAR LLC RELEASE OF SECURITY INTEREST Assignors: WELLS FARGO FOOTHILL, INC., AS COLLATERAL AGENT
Assigned to SATURN FASTENERS, INC., ACUMENT INTELLECTUAL PROPERTIES, LLC, CAMCAR LLC, KING HOLDING CORPORATION, KING HOLDING US CORPORATION, RING SCREW LLC, WOLVERINE METAL SPECIALTIES, INC., ELCO FASTENING SYSTEMS LLC, ACUMENT FASTENING SYSTEMS LLC, ACUMENT GLOBAL TECHNOLOGIES, INC., AVDEL USA LLC, FLEXALLOY, INC. reassignment SATURN FASTENERS, INC. RELEASE OF PATENT SECURITY INTEREST Assignors: WILMINGTON TRUST FSB, AS THE AGENT
Abandoned 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
    • F01L3/10—Connecting springs to valve members
    • 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
    • F01L2301/00—Using particular materials
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a valve spring retainer plate for supporting the spring forces of closing springs acting upon gas exchange valves in connection with the valve operation of internal combustion engines, having a reinforcement member of a material of lower strength and an annular supporting member of a material with higher strength being positioned between the reinforcement member and the closing spring according to the preamble of claim 1 .
  • valve spring retainer plate for example is shown by German utility model DE 93 00 820 U1, in which the reinforcement member is made from a fiber-reinforced plastic and the supporting member of an annular steel sheet.
  • the supporting member is integrated in the reinforcement member in a positive fit.
  • the reinforcement member for reducing the weight thereof is made of aluminum and the annular supporting member is made from a steel sheet, too.
  • the supporting member is caulked with the reinforcement member.
  • the supporting member merely by the way of friction is maintained on the reinforcement member. It had been recognized according to the invention that it is sufficient for a reliable and possibly automated mounting of the valve spring retainer plate if the connection between the reinforcement member and the supporting member is by a frictional fit. As had been recognized, too, this frictional fit does not impede the reliable function of the valve operation in the later operation of the engine even with the occurring high valve accelerations. A lift-off of the supporting member from the reinforcing member is not occurring; relative movements around the valve axis, too, between the supporting member and the reinforcement member at least are negligible.
  • a radial support and a stiffening of the valve spring retainer plate is obtained.
  • the supporting member advantageously can have a L-shaped cross-section, wherein the radially inner annular section thereof is contacting the hub section of the reinforcement member with a slight pressure fit.
  • This concept is especially of advantage during the manufacture of the supporting member from steel sheet according to the deep-drawing-method, wherein the inner annular section even with a merely slight pressure fit is leading to a reliable friction fit connection with the reinforcement member.
  • the reinforcement member from an aluminium alloy, e.g. an aluminium forging alloy, which apart from a reduction in weight and a good deformability is ensuring a sufficient strength of the valve spring retainer plate.
  • an aluminium alloy e.g. an aluminium forging alloy
  • the enclosed schematic drawing is showing a valve spring retainer plate for the valve system of an internal combustion engine having a reinforcement member and a supporting member in a longitudinal cross-section along the central axis of the valve.
  • the rotationally symmetric valve spring retainer plate 10 shown is consisting of an annular reinforcement member 12 made of an aluminium alloy and an annular supporting member 14 made by a deep-drawing-method from steel sheet.
  • valve spring retainer plate 10 in a valve system not shown is serving the operation of gas exchange valves in an internal combustion engine in a known manner as the connecting member between the lift valve and a closing spring, wherein the closing spring is supported on the radially extending annular section 14 a .
  • the valve wedges holding the valve stem are inserted in a mounted valve system.
  • the supporting ring 14 as shown is L-shaped in cross-section, wherein the radially inner axially extending ring section 14 b is maintained on the exterior circumference of the hub section 12 b in a friction fit or a slight pressure fit, respectively.
  • the above-mentioned ring section 14 b can be made slightly conically with respect to the hub section 12 b similar to the recess 12 a to ensure a sufficient friction fit or pressure fit at least locally in connection with decreased manufacturing tolerances.
  • the supporting ring 14 can be only made disk-shaped and then the interior recess enclosing the hub section 12 b can contact the hub section 12 b in a pressure fit.

Abstract

In a valve spring retainer plate for supporting the spring forces of closing springs acting upon gas exchange valves in the valve operation of internal combustion engines having a reinforcement member of a material of lower strength and an annular supporting member of a material of higher strength being positioned between the reinforcement member and the closing spring, it is proposed that the supporting member for simplifying the manufature and the premounting merely is maintained on the reinforcement member by friction fit.

Description

  • The invention relates to a valve spring retainer plate for supporting the spring forces of closing springs acting upon gas exchange valves in connection with the valve operation of internal combustion engines, having a reinforcement member of a material of lower strength and an annular supporting member of a material with higher strength being positioned between the reinforcement member and the closing spring according to the preamble of claim 1.
  • Such a valve spring retainer plate for example is shown by German utility model DE 93 00 820 U1, in which the reinforcement member is made from a fiber-reinforced plastic and the supporting member of an annular steel sheet. The supporting member is integrated in the reinforcement member in a positive fit.
  • In a further valve spring retainer plate of the kind according to the above species (DE 41 20 892 A1) the reinforcement member for reducing the weight thereof is made of aluminum and the annular supporting member is made from a steel sheet, too. Here the supporting member is caulked with the reinforcement member.
  • It is the task of the present invention to propose a valve spring retainer plate of the above identified species which with an unchanged reliable function can be produced far more simply and therefore is suitable for a production in large numbers.
  • This task according to the invention is solved by the characterizing features of claim 1. Advantageous improvements of the invention can be learnt from the further claims.
  • According to the invention, it is proposed that the supporting member merely by the way of friction is maintained on the reinforcement member. It had been recognized according to the invention that it is sufficient for a reliable and possibly automated mounting of the valve spring retainer plate if the connection between the reinforcement member and the supporting member is by a frictional fit. As had been recognized, too, this frictional fit does not impede the reliable function of the valve operation in the later operation of the engine even with the occurring high valve accelerations. A lift-off of the supporting member from the reinforcing member is not occurring; relative movements around the valve axis, too, between the supporting member and the reinforcement member at least are negligible.
  • By the supporting disk in an advantageous manner additionally a radial support and a stiffening of the valve spring retainer plate is obtained. For example, thereby radial forces—starting out from the gas exchange valve—can be at least partly taken by or compensated by the supporting disk.
  • A sufficient frictional fit is obtained if the supporting member is maintained by means of an radially inwardly positioned annular section at a hub section of the reinforcement member. This results to an extremely simple premounting of the valve spring retainer plate by simply pushing both parts in an axial direction one over the other.
  • In this connection and especially with an automated premounting it is of advantage if the supporting member is maintained at the reinforcement member with a slight pressure tit. This ensures a safe connection during the premounting and the later mounting even in connection with possibly critical transporting conditions.
  • With regard to the manufacture, the supporting member advantageously can have a L-shaped cross-section, wherein the radially inner annular section thereof is contacting the hub section of the reinforcement member with a slight pressure fit. This concept is especially of advantage during the manufacture of the supporting member from steel sheet according to the deep-drawing-method, wherein the inner annular section even with a merely slight pressure fit is leading to a reliable friction fit connection with the reinforcement member.
  • By a slightly conical shaping of the radially inner ring section with respect to the hub section of the reinforcement member (about 1 to 3 degrees) possibly occurring tolerances in manufacture can be compensated or a sufficient pressure fit at least at local points of the connection can be ensured.
  • Finally it is proposed to manufacture the reinforcement member from an aluminium alloy, e.g. an aluminium forging alloy, which apart from a reduction in weight and a good deformability is ensuring a sufficient strength of the valve spring retainer plate.
  • An exemplary embodiment according to the invention in further details is more closely described below.
  • The enclosed schematic drawing is showing a valve spring retainer plate for the valve system of an internal combustion engine having a reinforcement member and a supporting member in a longitudinal cross-section along the central axis of the valve.
  • The rotationally symmetric valve spring retainer plate 10 shown is consisting of an annular reinforcement member 12 made of an aluminium alloy and an annular supporting member 14 made by a deep-drawing-method from steel sheet.
  • The valve spring retainer plate 10 in a valve system not shown is serving the operation of gas exchange valves in an internal combustion engine in a known manner as the connecting member between the lift valve and a closing spring, wherein the closing spring is supported on the radially extending annular section 14 a. In the conical recess 12 a of the reinforcement member 12, the valve wedges holding the valve stem are inserted in a mounted valve system.
  • The supporting ring 14 as shown is L-shaped in cross-section, wherein the radially inner axially extending ring section 14 b is maintained on the exterior circumference of the hub section 12 b in a friction fit or a slight pressure fit, respectively.
  • Possibly the above-mentioned ring section 14 b can be made slightly conically with respect to the hub section 12 b similar to the recess 12 a to ensure a sufficient friction fit or pressure fit at least locally in connection with decreased manufacturing tolerances.
  • Different from the exemplary embodiment shown, the supporting ring 14 can be only made disk-shaped and then the interior recess enclosing the hub section 12 b can contact the hub section 12 b in a pressure fit.

Claims (7)

1. Valve spring retainer plate for supporting the valve forces of closing springs acting upon gas exchange valves in the operation of internal combustion engines, having a reinforcement member of a material of lower strength and an annular supporting member of a material of higher strength being positioned between the reinforcement member and the closing spring, characterized in that the supporting member (14) is maintained on the reinforcement member (12) in a friction fit.
2. Valve spring retainer plate according to claim 1, characterized in that the supporting member (14) is maintained on a hub section (12 b) of the reinforcement member (12) by means of a radially inwardly positioned annular section (14 b).
3. Valve spring retainer plate according to claims 1 and 2, characterized in that the supporting member (14) is mounted at the reinforcement member (12) with a slight pressure fit.
4. Valve spring retainer plate according to claims 1 to 3, characterized in that the supporting member (14) is having a L-shaped cross-section and that the radially inwardly positioned annular section (14 b) thereof is contacting the hub section (12 b) of the reinforcement member (12) with a slight pressure fit.
5. Valve spring retainer plate according to one or more of claims 1 to 4, characterized in that the supporting member (14) is manufactured from steel by deep-drawing.
6. Valve spring retainer plate according to claim 5, characterized in that the radially inwardly positioned ring section (14 b) is slightly conically extending with respect to the hub section (12 b) of the reinforcement member (12).
7. Valve spring retainer plate according to one or more of claims 1 to 6, characterized in that the reinforcement member (12) made from a light alloy, especially from an aluminium alloy.
US10/549,734 2003-03-21 2004-03-17 Valve spring plate Abandoned US20060131535A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10312580A DE10312580B4 (en) 2003-03-21 2003-03-21 Valve spring retainer
DE103125809 2003-03-21
PCT/DE2004/000543 WO2004083610A1 (en) 2003-03-21 2004-03-17 Valve spring plate

Publications (1)

Publication Number Publication Date
US20060131535A1 true US20060131535A1 (en) 2006-06-22

Family

ID=32946029

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/549,734 Abandoned US20060131535A1 (en) 2003-03-21 2004-03-17 Valve spring plate

Country Status (10)

Country Link
US (1) US20060131535A1 (en)
EP (1) EP1606496A1 (en)
KR (1) KR20050109597A (en)
CN (1) CN1777739A (en)
BR (1) BRPI0408558A (en)
CA (1) CA2519934A1 (en)
DE (1) DE10312580B4 (en)
MX (1) MXPA05010071A (en)
TW (1) TW200422512A (en)
WO (1) WO2004083610A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11116932B2 (en) * 2016-11-08 2021-09-14 Hamilton Medical Ag Expiratory valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879978A (en) * 1988-08-25 1989-11-14 Pierce Daniel H Poppet valve spring retainer
US5143351A (en) * 1991-08-29 1992-09-01 Pierce Daniel H Self-locking valve spring retainer
US5255640A (en) * 1993-03-09 1993-10-26 D.P.I. Bi-plastic self-locking valve spring retainer
US6273046B1 (en) * 1999-07-26 2001-08-14 Daniel H. Pierce Valve spring retainer with skirt
US6341588B2 (en) * 2000-03-28 2002-01-29 Fuji Oozx, Inc Valve spring retainer and a valve operating mechanism
US20020171060A1 (en) * 2001-04-03 2002-11-21 Haruki Kobayashi Valve spring retainer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368211A (en) * 1963-06-17 1964-07-31 Renault Improvements to the valve spring support cups
DE3201023A1 (en) * 1982-01-15 1983-07-28 Robert Bosch Gmbh, 7000 Stuttgart Valve spring retainer for valve operating mechanisms of internal-combustion engines
DE3902518A1 (en) * 1989-01-28 1990-08-02 Goetze Ag VALVE SEAL
DE4120892A1 (en) * 1991-06-25 1993-01-07 Bayerische Motoren Werke Ag Lightweight two=part valve spring retainer - consists of pad and reinforcing component
US5174256A (en) * 1991-11-25 1992-12-29 Dana Corporation Variable guide height valve seal
DE4301608A1 (en) * 1993-01-22 1994-07-28 Bosch Gmbh Robert Support assembly for engine valve spring
DE9300820U1 (en) * 1993-01-22 1993-03-11 Robert Bosch Gmbh, 7000 Stuttgart, De
JPH10317926A (en) * 1997-05-23 1998-12-02 Fuji Oozx Inc Spring retainer for internal combustion engine and manufacture thereof
JPH1138308A (en) * 1997-07-18 1999-02-12 Minolta Co Ltd Auxiliary light projecting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879978A (en) * 1988-08-25 1989-11-14 Pierce Daniel H Poppet valve spring retainer
US5143351A (en) * 1991-08-29 1992-09-01 Pierce Daniel H Self-locking valve spring retainer
US5255640A (en) * 1993-03-09 1993-10-26 D.P.I. Bi-plastic self-locking valve spring retainer
US6273046B1 (en) * 1999-07-26 2001-08-14 Daniel H. Pierce Valve spring retainer with skirt
US6341588B2 (en) * 2000-03-28 2002-01-29 Fuji Oozx, Inc Valve spring retainer and a valve operating mechanism
US20020171060A1 (en) * 2001-04-03 2002-11-21 Haruki Kobayashi Valve spring retainer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11116932B2 (en) * 2016-11-08 2021-09-14 Hamilton Medical Ag Expiratory valve

Also Published As

Publication number Publication date
KR20050109597A (en) 2005-11-21
CN1777739A (en) 2006-05-24
EP1606496A1 (en) 2005-12-21
DE10312580A1 (en) 2004-10-07
BRPI0408558A (en) 2006-03-21
MXPA05010071A (en) 2005-12-15
CA2519934A1 (en) 2004-09-30
WO2004083610A1 (en) 2004-09-30
DE10312580B4 (en) 2006-12-07
TW200422512A (en) 2004-11-01

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