WO1998003776A1 - Coaxial valves arrangement - Google Patents

Coaxial valves arrangement Download PDF

Info

Publication number
WO1998003776A1
WO1998003776A1 PCT/GB1997/001953 GB9701953W WO9803776A1 WO 1998003776 A1 WO1998003776 A1 WO 1998003776A1 GB 9701953 W GB9701953 W GB 9701953W WO 9803776 A1 WO9803776 A1 WO 9803776A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
given circumference
valves
area
inlet
Prior art date
Application number
PCT/GB1997/001953
Other languages
French (fr)
Inventor
Martyn Shane Finney
Original Assignee
Martyn Shane Finney
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 Martyn Shane Finney filed Critical Martyn Shane Finney
Priority to AU36274/97A priority Critical patent/AU3627497A/en
Publication of WO1998003776A1 publication Critical patent/WO1998003776A1/en

Links

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • F01L1/285—Coaxial intake and exhaust valves

Definitions

  • This invention relates to a one-in-one (valve within a valve) concept .
  • Valves are well known for allowing or releasing fluids, air or other gases to enable supply and demand.
  • Two or more valves only utilise a certain area within the given circumference, therefore an area of waste is still present .
  • the one-in-one valve concept utilises a greater area within the given circumference, therefore minimising the area of waste present .
  • the one-in-one valve can utilise less area within that given circumference, therefore enabling the given circumference to be reduced if required.
  • Figure 2 shows the valves in the closed position for firing.
  • Figure 3 shows the exhaust valve open.
  • Figure 4 shows the outer (inlet) valve open.
  • Figure 5 shows both valves closed for compression.
  • the drawing comprises of head casting 1, with the portway above the other, proportionate to size required.
  • Valve seat 2 valve guides 3, outer valve (inlet) 4, inner valve (exhaust) 5, exhaust slots 6, which can be variable if required.
  • Spring seat 7, bonded to the outer valve (inlet) 4.
  • the outlet valve spring 9 is of less strength than the inlet valve spring 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The one-in-one valve allows more free flowing fluids, air or other gases, because of the one-in-one valve's size within a given circumference. The one-in-one valve is based upon a valve within a valve which can take more or less area within a given circumference as required. With the exhaust spring being of a different strength this enables the one-in-one valve to operate independently. The exhaust slots on the outer valve can be modified to a desired shape, length or width dependent upon the height of the exhaust port.

Description

COAXIAL VALVES ARRANGEMENT
This invention relates to a one-in-one (valve within a valve) concept .
Valves are well known for allowing or releasing fluids, air or other gases to enable supply and demand.
Two or more valves only utilise a certain area within the given circumference, therefore an area of waste is still present .
The one-in-one valve concept utilises a greater area within the given circumference, therefore minimising the area of waste present .
In applications where minimal size is of an optimum and two or more valves are used within a given circumference, the one-in-one valve can utilise less area within that given circumference, therefore enabling the given circumference to be reduced if required.
A particular embodiment of the invention will now be described by way of example, with reference to the accompanying drawing (it should be noted that the illustration provided is one for an automotive application, but the concept could be used in a wide variety of devices); Figure 1 illustrates the concept's assembly.
Figure 2 shows the valves in the closed position for firing. Figure 3 shows the exhaust valve open. Figure 4 shows the outer (inlet) valve open. Figure 5 shows both valves closed for compression. Referring to Figure 1 the drawing comprises of head casting 1, with the portway above the other, proportionate to size required. Valve seat 2, valve guides 3, outer valve (inlet) 4, inner valve (exhaust) 5, exhaust slots 6, which can be variable if required. Spring seat 7, bonded to the outer valve (inlet) 4. Outlet valve stem seal 8. The outlet valve spring 9 is of less strength than the inlet valve spring 10. Outer (inlet) spring retainer 11, inner (outlet) spring retainer 12.
In figure 3 the inner valve (exhaust) 5 is open but the outer valve (inlet) 4 is still closed as the inlet valve spring 10 is stronger than the outlet valve spring 9.
In Figure 1 it should be noted that the exhaust port can be altered in size dependent upon the size of the exhaust slots 6.

Claims

1 Two or more valves only utilise a certain area within the given circumference, therefore an area of waste is still present .
The one-in-one valve concept utilises a greater area within the given circumference, therefore minimising the area of waste present .
2 In applications where minimal size is of an optimum and two or more valves are used within a given circumference, the one-in-one valve can utilise less area within that given circumference, therefore enabling the given circumference to be reduced if required.
3 With the springs being of different strengths the inner valve spring is of less strength and this enables it to work independently of the outer valve (inlet).
4 The valve stems at the top can be pressed for opening the valves. Also, the base of the valves can be used by vacuum.
5 Each port can be used as an inlet or outlet, therefore widening it's choice of applications.
6 For automotive purposes this would only necessitate the use of one cam.
PCT/GB1997/001953 1996-07-22 1997-07-16 Coaxial valves arrangement WO1998003776A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36274/97A AU3627497A (en) 1996-07-22 1997-07-16 Coaxial valves arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9615368A GB2315519A (en) 1996-07-22 1996-07-22 Coaxial lift valves, eg for i.c.engines
GB9615368.9 1996-07-22

Publications (1)

Publication Number Publication Date
WO1998003776A1 true WO1998003776A1 (en) 1998-01-29

Family

ID=10797304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/001953 WO1998003776A1 (en) 1996-07-22 1997-07-16 Coaxial valves arrangement

Country Status (3)

Country Link
AU (1) AU3627497A (en)
GB (1) GB2315519A (en)
WO (1) WO1998003776A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025069A1 (en) * 2000-09-25 2002-03-28 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
CN107023340A (en) * 2017-05-23 2017-08-08 湖北科技学院 A kind of automobile engine
WO2017207056A1 (en) * 2016-06-02 2017-12-07 Volvo Truck Corporation Valve arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111894693A (en) * 2020-06-30 2020-11-06 中国北方发动机研究所(天津) Efficient high-compactness air exchange system of diesel engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835818A (en) * 1938-03-28 1939-01-04 Valve system, especially for combustion engines
GB816392A (en) * 1954-07-02 1959-07-15 Alfred Johann Buchi Improvements in or relating to valves more particularly for internal combustion engines
WO1983001485A1 (en) * 1981-10-19 1983-04-28 Alternative Combustion Eng Multiple concentric intake/exhaust valve system for an internal combustion engine
AT390998B (en) * 1986-07-28 1990-07-25 Fuerbass Paul Cylinder head for a four-stroke internal combustion engine
US5357914A (en) * 1993-08-24 1994-10-25 Acro-Techn Inc. Vented valve mechanism for internal combustion engines
FR2706529A1 (en) * 1993-06-14 1994-12-23 Dupuis Jacques Nested valves system for a heat engine with rockers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804465A (en) * 1955-07-26 1958-11-19 Rene Bouteleux Cylinder head for internal combustion engine
GB949190A (en) * 1959-09-26 1964-02-12 Alfred Johann Buchi Valve control mechanism for internal combustion piston engines
GB892544A (en) * 1960-10-29 1962-03-28 Roland Joseph Colton Concentric triple valves for internal combustion engines
DE2529074C2 (en) * 1975-06-30 1982-01-28 Josef 7906 Blaustein Schaich Device for the formation of mixture zones in the compression chamber of a four-stroke reciprocating engine
RO74461A2 (en) * 1978-09-26 1983-02-01 Intreprinderea De Autoturisme,Ro DEVICE FOR MODIFYING DISTRIBUTION PHASES TO INTERNAL COMBUSTION ENGINES
US4957073A (en) * 1981-10-19 1990-09-18 Bergeron Charles W Multiple concentric intake/exhaust valve system for an internal combustion engine
US5140954A (en) * 1991-05-17 1992-08-25 Kubsch William N Concentric valve structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835818A (en) * 1938-03-28 1939-01-04 Valve system, especially for combustion engines
GB816392A (en) * 1954-07-02 1959-07-15 Alfred Johann Buchi Improvements in or relating to valves more particularly for internal combustion engines
WO1983001485A1 (en) * 1981-10-19 1983-04-28 Alternative Combustion Eng Multiple concentric intake/exhaust valve system for an internal combustion engine
AT390998B (en) * 1986-07-28 1990-07-25 Fuerbass Paul Cylinder head for a four-stroke internal combustion engine
FR2706529A1 (en) * 1993-06-14 1994-12-23 Dupuis Jacques Nested valves system for a heat engine with rockers
US5357914A (en) * 1993-08-24 1994-10-25 Acro-Techn Inc. Vented valve mechanism for internal combustion engines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025069A1 (en) * 2000-09-25 2002-03-28 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
US6971344B2 (en) 2000-09-25 2005-12-06 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine
WO2017207056A1 (en) * 2016-06-02 2017-12-07 Volvo Truck Corporation Valve arrangement
US10794334B2 (en) 2016-06-02 2020-10-06 Volvo Truck Corporation Valve arrangement
CN107023340A (en) * 2017-05-23 2017-08-08 湖北科技学院 A kind of automobile engine
CN107023340B (en) * 2017-05-23 2023-02-28 湖北科技学院 Automobile engine

Also Published As

Publication number Publication date
AU3627497A (en) 1998-02-10
GB9615368D0 (en) 1996-09-04
GB2315519A (en) 1998-02-04

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