US20020112684A1 - Adhesively bonded valve cover cylinder head assembly - Google Patents

Adhesively bonded valve cover cylinder head assembly Download PDF

Info

Publication number
US20020112684A1
US20020112684A1 US10/051,417 US5141702A US2002112684A1 US 20020112684 A1 US20020112684 A1 US 20020112684A1 US 5141702 A US5141702 A US 5141702A US 2002112684 A1 US2002112684 A1 US 2002112684A1
Authority
US
United States
Prior art keywords
valve cover
cylinder head
adhesive
mating surface
valve
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
US10/051,417
Other languages
English (en)
Inventor
Bart Jones
Eugene Nykyforiak
David Bank
Ravi Ramanathan
David Recktenwald
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.)
Dow Global Technologies LLC
Original Assignee
Dow Global Technologies LLC
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 Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Priority to US10/051,417 priority Critical patent/US20020112684A1/en
Publication of US20020112684A1 publication Critical patent/US20020112684A1/en
Assigned to THE DOW CHEMICAL COMPANY reassignment THE DOW CHEMICAL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RECKTENWALD, DAVID W., NYKYFORIAK, EUGENE J., RAMANATHAN, RAVI, BANK, DAVID H., JONES, BART R.
Assigned to DOW GLOBAL TECHNOLOGIES, INC. reassignment DOW GLOBAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOW CHEMICAL COMPANY, THE
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure

Definitions

  • This invention relates to valve cover assemblies for internal combustion engines wherein the valve cover is bonded to the cylinder head by an adhesive.
  • the invention also relates to a valve cover for use in such an assembly having a cure-on-demand adhesive bonded thereon.
  • the invention also relates to processes for bonding valve covers to cylinder heads of internal combustion engines.
  • valve covers designed to protect the valves and internal components from a variety of external contaminants and to contain engine oil and combustion gases within the engine for proper disposal.
  • These covers are variously referred to as valve covers, rocker covers, cam covers and the like.
  • these valve covers have been made from metal materials such as steel, magnesium, or aluminum.
  • valve covers have been made from thermoset plastic materials or thermoplastic materials which can withstand the high underhood temperature environment, see for example, U.S. Pat. No. 5,492,086 U.S. Pat. No. 5,375,569, U.S. Pat. No. 5,746,168 and U.S. Pat. No. 5,363,759.
  • the valve covers are attached to the engine by bolting the valve cover to the cylinder head.
  • a gasket is disposed between the valve cover and the cylinder head.
  • valve cover assembly of a valve cover to an engine is labor intensive and requires costly mechanical fixing devices, such as bolts and threaded bolt holes.
  • the need to use threaded bolt holes also requires significant machining and cost.
  • traditional means of assembly requires the use of a gasket to seal between the valve cover and the cylinder head. This too requires significant labor. Further, gaskets tend to creep and crack with age resulting in leaks which impact engine performance and require costly repairs.
  • valve cover that can be affixed to an engine without the need for gaskets and costly mechanical fixation means, such as bolts and threaded bolt holes.
  • an engine assembly which has a valve cover affixed to the cylinder head of the engine wherein the valve cover is affixed without the need for gaskets and costly mechanical fixation means.
  • costly mechanical fixation means refers to mechanical means of attaching a valve cover to a cylinder head that requires expensive parts, a significant amount of labor, costly machining or a combination thereof.
  • the invention is a valve cover assembly comprising a valve cover wherein the valve cover has a mating surface adapted to be attached to a cylinder head of an internal combustion engine having a continuous bead of adhesive disposed on the perimeter of the mating surface.
  • the valve cover does not have bolt holes adapted to serve the primary function of holding the valve cover in place.
  • the adhesive is a cure-on-demand adhesive adapted to hold the valve cover in place.
  • the invention is an engine assembly comprising one or more valve covers which preferably do not have bolt holes adapted to hold the one or more valve covers in place, wherein each valve cover has a mating surface and one or more cylinder heads wherein each cylinder head has mating surfaces adapted to fit to the mating surfaces of the valve covers wherein each valve cover is adhesively bonded to a cylinder head along such mating surfaces.
  • a continuous layer of adhesive is disposed between the mating surfaces of each valve cover and the cylinder head to which each valve cover is bonded. The continuous layer of adhesive forms a seal between the mating surface of each valve cover and cylinder head.
  • the invention is a method for bonding a valve cover to a cylinder head comprising
  • valve cover and the cylinder head each have mating surfaces adapted to be mated, a continuous bead of adhesive on the mating surface of the cylinder head or the valve cover;
  • the inventions provide means of assembling a valve cover to an engine without the need for expensive mechanical attachment means the need for a gasket and or the need to specially prepare the mating surface of either the valve cover or the cylinder head.
  • the invention allows assembly of an engine with a significant reduction in the amount of labor needed to assemble the engine. Further, the invention allows assembly of an engine without the need to exert compression on either the gasket or the valve cover to hold it in place.
  • FIG. 1 shows an exploded view of a conventional valve cover cylinder head assembly.
  • FIG. 2 shows an exploded view of a valve cover cylinder head assembly of the invention.
  • FIG. 3 shows a cut away view exploded view of a valve cover and cylinder head assembly.
  • FIG. 4 shows an unexploded cut away view of the valve cover cylinder head assembly.
  • FIG. 5 illustrates a valve cover having ports.
  • FIG. 6 illustrates a cut away view of a sealing lid for the ports of the valve cover of FIG. 5.
  • FIG. 7 illustrates another method of attaching a sealing lid for the port to the valve cover illustrated in FIG. 5.
  • FIG. 8 shows a two-part valve cover.
  • FIG. 9 shows an exploded view of the two-part valve cover and the engine head.
  • FIG. 10 shows the two-part valve cover attached to the cylinder head using an adhesive.
  • valve cover includes the following terms: valve covers, cam covers, rocker covers and cylinder head covers.
  • a valve cover refers to the cover, which is placed over a cylinder head to protect be cylinders and internal engine components from damage due to exposure to outside elements and to contain engine oil and exhaust gases in the engine.
  • the valve covers that are useful in this invention can be of any shape or size that performs the desired function.
  • the valve cover can be made from any conventional material commonly used for valve covers, for instance a metal, a plastic or a plastic based composite. Preferred metals include steel, aluminum and magnesium.
  • Plastic based materials can be thermoset plastics and thermoplastic materials. The plastic based materials can be reinforced with common reinforcement materials such as glass fibers and the like.
  • thermoset materials are those based on epoxy, polyester, divinylbenzenes, and dicyclopentadiene resins.
  • thermoplastic materials are polybutylene terephthalate, polyetherimides, polyphenylene ether/polyamide resins, polyether sulfone resins, polyether ether ketone resins, liquid crystal polymers, polyarylsulfone resins, polyamideimide resins, polyphthalimide resins, nylon 6, 6 and nylon 6 polyamide resins, polypropylene, syndiotactic polystyrene, and blends thereof.
  • the thermoplastic material is a blend of nylon 6, 6 or nylon 6 with syndiotactic polystyrene.
  • thermoplastic resins are nylon 6, 6 and nylon 6 polyamide resins, syndiotactic polystyrene and blends thereof.
  • plastic materials are preferred because plastic materials are generally lighter than metals and provide greater design flexibility over metals.
  • valve covers are bonded to the cylinder head using an adhesive composition.
  • Any adhesive that after cure can withstand the conditions of use of an automobile engine can be used.
  • Preferably such adhesive does not decompose or delaminate at temperatures of up to about 280° F. (138° C.), more preferably up to about 290° F. (143° C.), even more preferably up to about 320° F. (160° C.) and most preferably up to about 375° F. (191° C.).
  • the adhesive must be able to withstand exposure to hydrocarbon materials, engine oil, calcium chloride, brake fluid, glycol coolants, windshield washer solvents and the like, at the above-mentioned temperatures and the pressures to which the internal combustion engine reaches internally.
  • the adhesive must be able to bond to the material used to make the valve cover and to the material from which cylinder heads are prepared, such as, cast iron, aluminum and magnesium.
  • the adhesive used is a structural adhesive which is an adhesive which has sufficient cohesive strength to hold the valve cover in place during normal operating conditions.
  • the cohesive strength measured in Lap Shear mode according to ASTM D3165-91 or in tensile mode according to ASTM D638 Type 4 is 250 psi (1724 kPa) or greater, more preferably 500 (3447 kPa) or greater and most preferably 1000 psi (6895 kPa) or greater.
  • the adhesive used can be cured via a variety of known mechanisms including heat cure, infrared cure, ultraviolet cure, chemical cure, solvent loss and moisture cure.
  • the adhesive can be a cure-on-demand adhesive which requires a separate operation to cause the adhesive to begin to cure. In one embodiment this is achieved by using an encapsulated curing agent which needs to be ruptured.
  • this is achieved by removing a protective coating to expose the adhesive to ambient conditions.
  • Cure can be initiated by exposing the adhesive to heat, infrared or ultraviolet light sources, or to shearing forces and the like.
  • the adhesive is a high temperature epoxy resin, a polyimide, a hi-bred polyimide/epoxy resin adhesive, a silicone, a fluorosilicone, an alkylborane initiated acrylic adhesive system, or an epoxy novolac/nitrile rubber adhesive
  • High temperature adhesive means an adhesive which when cured can withstand exposure to the temperatures mentioned above without decomposing or delaminating from the substrate.
  • valve cover can be designed in any manner that is suitable to perform its function.
  • a valve cover useful in the invention has a mating surface that is adapted to be mated with a mating surface of a cylinder head such that the two mating surfaces can form a tight seal therebetween with the aid of the adhesive.
  • Any suitable design of the mating surfaces can be used.
  • the two mating surfaces may be flat all along the surfaces to be mated, they may form a lap joint, a scarf joint or a tongue in groove joint or the like.
  • the invention is a valve cover having disposed on the its mating the surface a continuous bead or film of adhesive.
  • continuous bead or film of adhesive means a bead or film of adhesive that is disposed around the periphery of the mating surface and the end of the adhesive bead or film connects with the beginning of the adhesive bead or film.
  • the continuous bead or film of adhesive upon cure is capable of forming an air and liquid tight seal between the valve cover and cylinder head. This function allows the adhesive bead or film to replace gaskets as the sealing means between valve covers and cylinder heads.
  • the adhesive may be applied to the valve cover in the immediate vicinity of the location where the valve cover is to be contacted with the cylinder head or it may be applied in a location remote from the place where are the valve cover and a cylinder head are to be contacted.
  • Remote refers to one or both of time and location.
  • a cure-on-demand adhesive must be used.
  • the valve cover can contain an integral mechanical fastening means which is adapted to hold the valve cover in place on the cylinder head until the adhesive cures.
  • integral mechanical fastening means as used herein means a simple means to hold the valve cover and cylinder head together for a relatively short period of time while the adhesive cures. Such mean is not designed to hold the parts together during operation of an engine.
  • integral means that the fastening means is part of the valve cover, cylinder head or both. Examples of such fastening means include integral spring clips, snap fit mechanisms, screws, bolts and the like.
  • Such fastening means can be strategically located along the valve cover and the cylinder head interface or can be located along the entire cylinder head valve cover interface.
  • the mechanical fastening means is a snap fit means.
  • the mechanical fastening means is located on the inside portion of the valve cover and cylinder head, wherein inside portion refers to the inside of the engine and valve cover. This is preferred because the fastening means cannot be seen from the exterior of the engine.
  • the valve cover may have protruding from its mating surface a leg or protrusion adapted to guide the valve cover or hold the valve cover along its mating surface in proper relationship to the cylinder head.
  • the cylinder head may have a matching indentation or groove adapted to work with the leg or protrusion to aid in holding the valve cover and cylinder head in proper alignment.
  • one or more bolts and bolt holes can be included in the valve cover for a purpose other than attachment purposes, such as alignment purposes or for attaching other items to the valve cover.
  • a bolt or screw can have a matching female threaded receptacle in the cylinder head.
  • the primary function of such bolts or screws is to attach peripheral items to the valve cover.
  • valve covers have gaskets mounted on ports in the valve cover designed to seal about the port.
  • the port is used to insert a peripheral item into the valve cover area, such as a spark plug or coil.
  • a bolt or screw can be used to hold the peripheral item in place in the port.
  • Such a bolt or screw can provide compression on the gasket which seals the port on the valve cover.
  • the invention is an engine assembly wherein the valve cover as described herein is bonded to a cylinder head with the adhesives disposed between the valve cover and the cylinder head.
  • the adhesive is in the form of a continuous bead or film such that it forms a seal along the entire juncture between the valve cover and cylinder head.
  • the valve cover of the invention may further comprise one or more ports to allow access to the cylinder head.
  • a port is an opening in the valve cover that provides for the access.
  • each port must have a means for covering and sealing the access ports.
  • ports are covered with a cover that seals the valve cover to prevent or significantly reduce the transmission of gas and liquids through the valve cover during operation of the engine.
  • reduced transmission means that the majority of the gasses and liquids that would be transmitted, if no seal is present, would not be transmitted.
  • the port can be any shape or size to meet the needs of providing access on demand and allowing sealing of the valve cover during operation.
  • the port can comprise the entire top of the valve cover wherein the cover of the port is the top of the valve cover.
  • the top is attached to the rest of the valve cover using any means which allows formation of a seal between the cover and the rest of the valve cover.
  • the port or cover has a male ridge about the perimeter of the port or the cover and the other of the cover or the port has a female groove which matches the ridge and which forms a seal when the ridge is united with the groove.
  • the male ridge and female grooves can contain a means for locking or holding the ridge in the groove so as to insure sealing.
  • the one or more ports can be smaller and the cover can be any kind of cover that seals the port as desired.
  • the valve cover can have a port for each cylinder.
  • the cover can comprise the female portion of a screw on cap with matching threads on the port having a male receptacle for the screw on cap.
  • the cap can also be attached in a sealing manner to the port by any means of attachment, such as a device which has a protrusion on the port which matches the cover and which allows the cover with matching grooves to be attached to the port by twisting and locking the groove in the protrusion.
  • the port preferably protrudes from the valve cover to facilitate attachment of the cover, for instance in the form of a male screw top or locking device.
  • the valve cover can contain one or more recessed areas having female threads that the cover screws into.
  • the cover on the port of the valve cover or the valve cover can also incorporate other functional devices that can work with the engine. Any device which can be located on a valve cover and perform its' necessary function can be located on the valve cover or cover of a port. Examples of devices which may be incorporated into the valve cover or port cover include coils, pcv (positive crankcase ventilation), systems, fuel rails, fuel injectors and the like. In the case of coils, pcv systems and fuel injectors it is preferable that there be a port and associated device or an associated device attached to the valve cover for each cylinder.
  • the port cover can be made of any material that can handle the conditions to which the valve cover is exposed. Preferably the valve cover and the port cover are made of the same material.
  • the adhesive is applied to the valve cover or the cylinder head by contacting the adhesive in a conventional fashion with the mating surface to form a continuous bead or film.
  • the adhesive may be coated, extruded brushed or the like, onto the surface.
  • the adhesive is applied to the mating surface of the valve cover.
  • the adhesive is applied as a continuous bead or film along the mating surface of the valve cover.
  • the adhesive can be applied immediately before contacting the valve cover with the cylinder head or it can be applied in remote location from the location where the valve cover is bonded to the cylinder head or at an earlier time with respect to the bonding operation.
  • any adhesive which meets the performance criteria defined above may be used.
  • an appropriate cure-on-demand adhesive may be used.
  • the cure-on-demand adhesive is exposed to conditions such that it will cure and thereby bond the valve cover to the cylinder head and form a seal between them. Such conditions can be applied prior to contacting the cylinder head with the valve cover or after such contacting. It is well within the average level of skill in the art to determine which operation may be used to cure the adhesive and when it should be performed. In one embodiment the operation may be an operation that is inherent in the assembly of an automobile or in the running of an automobile.
  • the valve cover may include an integrated acoustic management system designed to prevent the noise inherent in the operation of an internal combustion engine from escaping the engine compartment.
  • the valve cover can comprise two parts one being an outer shell and the other being an inner shell adapted such that the inner shall is located within the outer shell such that there is a gap between the two.
  • the gap may simply contain air which can attenuate certain sound waves thereby reducing the noise that can be heard outside the engine.
  • the gap can be filled with a sound deadening material such as shoddy pad, nonwoven mat, elastomeric material or foam material.
  • the valve cover may have bound to its inner surface a sound attenuating material such as the elastomer or foam.
  • valve cover of the invention can comprise a coating or film on the exterior or interior which functions to improve the barrier properties of the valve cover to hydrocarbons.
  • a coating of film can reduce the fugitive hydrocarbon emission from an automobile. Any coating or film which prevents the transmission of hydrocarbons through the valve cover may be used.
  • a preferred coating is a carbon-silica based plasma deposited coating as described in U.S. Pat. No. 5,298,587; U.S. Pat. No. 5,320,875; U.S. Pat. No. 5,433,786 and U.S. Pat. No. 5,494,712 incorporated herein by reference.
  • FIG. 1 shows an exploded view of a conventional valve cover cylinder head assembly.
  • the figure shows three main parts, a cylinder head ( 10 ), a gasket ( 11 ), and a valve cover ( 12 ).
  • FIG. 1 shows that the gasket ( 11 ) is disposed between the valve cover ( 12 ) and the cylinder head ( 10 ).
  • the cylinder head ( 10 ) has a plurality of machined bolt holes ( 13 ) adapted for receiving a plurality of bolts ( 14 ) in a manner such that the bolts ( 14 ) and bolt holes ( 13 ) in the cylinder head ( 10 ) secure the valve cover ( 12 ) in place with the gasket ( 11 ) disposed between them.
  • the machined bolt holes ( 13 ) have machined threads to hold the bolts ( 14 ) in place.
  • the valve cover ( 12 ) and the gasket ( 11 ) have a plurality of bolt holes, ( 17 and 18 respectively), which line up with the machined bolt holes ( 13 ) of the cylinder head ( 10 ).
  • the bolts ( 14 ) go through spacers ( 15 ) and washers ( 16 ) before going through bolt holes ( 17 ) and ( 18 ) of the valve cover ( 12 ), and the gasket ( 11 ) and screw into the threaded machined bolt holes ( 13 ) of the cylinder head ( 10 ).
  • a large number of bolts ( 14 ) are needed to affix this valve cover ( 12 ) onto the cylinder head ( 10 ).
  • the bolts ( 14 ) function to compress the gasket ( 11 ) to enhance the seal.
  • the assembly of the cylinder head ( 10 ) and the valve cover ( 12 ) requires significant machining and labor.
  • FIG. 2 shows and exploded view of a valve cover cylinder head assembly.
  • the figure shows a cylinder head ( 20 ) and a valve cover ( 21 ) having a continuous bead of adhesive ( 22 ) located between them.
  • the valve cover ( 21 ) has integral snap fit clips ( 23 ) adapted to hold the valve cover ( 21 ) in place on the cylinderhead ( 20 ) while the adhesive bead ( 22 ) cures.
  • the cylinder head ( 20 ) has matching indentations ( 24 ) which match with the snap fit clips ( 23 ) which receive the clips ( 23 ) and function to hold the valve cover ( 21 ) in place.
  • the mating surface of the cylinder head ( 25 ) adapted to mate with the corresponding mating surface of the valve cover (not shown).
  • FIG. 3 shows a cut away view exploded view of a valve cover ( 21 ) and cylinder head ( 20 ) assembly.
  • the exploded view shows the cut away of a cylinder head ( 20 ) a valve cover ( 21 ) and located therebetween is an adhesive bead ( 22 ).
  • the adhesive bead ( 22 ) is located between the mating surface of the cylinder head ( 25 ) and the mating surface of the valve cover ( 26 ).
  • the cylinder head ( 20 ) has an indentation ( 24 ) adapted to mate with the snap fit clips ( 23 ) of the valve cover ( 21 ).
  • FIG. 4 shows an unexploded cut away view of the valve cover ( 21 ) cylinder head ( 20 ) assembly. Shown is a cylinder head ( 20 ) with a valve cover ( 21 ) adhesively bound together by a continuous bead of adhesive ( 22 ) along the mating surface of the cylinder head ( 25 ) and the mating surface of the valve cover ( 26 ). Also shown is a snap fit clip ( 23 ) integrated with the valve cover ( 21 ) and engaged with the cylinder head ( 20 ) by the indentation ( 24 ) adapted to hold the snap fit clip ( 23 ) in place. The snap fit clips ( 23 ) are located in the inside of the valve cover ( 20 ) and cylinder head ( 20 ) assembly. This is desirable for cosmetic reasons.
  • FIG. 5 illustrates a valve cover ( 30 ) having ports ( 31 ) with raised lips ( 32 ), which raised lips are designed to work with sealing lids ( 33 ) to seal the valve cover.
  • FIG. 6 illustrates a cut away view of the raised lip ( 32 ) and corresponding sealing lid ( 33 ). Also shown is the port ( 31 ).
  • FIG. 6 shows a snap fit seal which has a female indentation ( 34 ) on the outside of the lip ( 32 ) which is adapted for receiving a male protrusion ( 35 ) on the sealing lid ( 33 ).
  • FIG. 7 illustrates another method of attaching the sealing lid ( 33 ) to the valve cover ( 30 ).
  • the lip ( 32 ) has a female screw line ( 37 ) that is adapted to receive the male screw line ( 36 ) of the sealing cap ( 33 ). Screwing the sealing lid ( 33 ) on the lip ( 32 ) allows for sealing the port ( 31 ) of the valve cover ( 30 ) from the exterior.
  • FIG. 8 shows a two part valve cover ( 40 ) where the upper portion ( 41 ) can be separated from the lower portion ( 42 ) to allow access to enclosed engine parts.
  • FIG. 9 shows an exploded view of the two piece valve cover ( 40 ) and the engine head ( 43 ). Shown is the upper portion ( 41 ) of the valve cover ( 40 ) having a female opening ( 45 ) which is located about the entire perimeter of the upper portion ( 41 ) of the valve cover ( 40 ) and adapted to receive the male protrusion ( 44 ) of the lower portion ( 42 ) of the valve cover ( 40 ). The male protrusion ( 44 ) extends about the perimeter of the lower portion ( 42 ) of the valve cover ( 40 ).
  • the female opening ( 45 ) has indentations ( 46 ) perpendicular to the indentation of the female opening ( 45 ) adapted to receive perpendicular protrusions ( 47 ) on the male protrusion ( 44 ) of the lower portion of the valve cover ( 42 ).
  • the perpendicular protrusions ( 47 ) are perpendicular to the direction of the male protrusion ( 44 ).
  • the indentations ( 46 ) and the perpendicular protrusions ( 47 ) serve to lock the upper portion ( 41 ) of the valve cover ( 40 ) to the lower portion ( 42 ) of the valve cover ( 40 ). Also illustrated is the area where adhesive is to be applied ( 47 ).
  • FIG. 10 shows the two-part valve cover ( 40 ) attached to the engine head ( 43 ) using an adhesive ( 49 ).
  • FIG. 10 also shows the upper portion ( 41 ) and the lower portion ( 42 ) of the valve cover ( 40 ) assembled wherein the male protrusion ( 44 ) of the lower portion ( 42 ) is located within the female opening ( 45 ) of the upper portion ( 41 ) and locked by the perpendicular protrusions ( 47 ) of the male protrusion ( 44 ) being located in the indentations ( 46 ) of the female opening ( 45 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Connection Of Plates (AREA)
US10/051,417 2001-01-18 2002-01-17 Adhesively bonded valve cover cylinder head assembly Abandoned US20020112684A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/051,417 US20020112684A1 (en) 2001-01-18 2002-01-17 Adhesively bonded valve cover cylinder head assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26257001P 2001-01-18 2001-01-18
US10/051,417 US20020112684A1 (en) 2001-01-18 2002-01-17 Adhesively bonded valve cover cylinder head assembly

Publications (1)

Publication Number Publication Date
US20020112684A1 true US20020112684A1 (en) 2002-08-22

Family

ID=22998069

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/051,417 Abandoned US20020112684A1 (en) 2001-01-18 2002-01-17 Adhesively bonded valve cover cylinder head assembly

Country Status (10)

Country Link
US (1) US20020112684A1 (fr)
EP (1) EP1354130A1 (fr)
JP (1) JP2004525291A (fr)
KR (1) KR20040014449A (fr)
CN (1) CN1650100A (fr)
BR (1) BR0206715A (fr)
CA (1) CA2435318A1 (fr)
MX (1) MXPA03006435A (fr)
RU (1) RU2003125279A (fr)
WO (1) WO2002057611A1 (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030214082A1 (en) * 2002-05-15 2003-11-20 Dow Global Technologies, Inc. Automotive valve cover with integral positive crankcase ventilation
US20050005890A1 (en) * 2003-07-10 2005-01-13 Dow Global Technologies Inc. Engine intake manifold assembly
US20050061280A1 (en) * 2003-09-19 2005-03-24 Jialanella Gary L. Adhesively bonded engine and transmission parts
US6913498B1 (en) * 2003-11-13 2005-07-05 Brunswick Corporation Marine propulsion system with a polymer composite oil sump structure
US20070074696A1 (en) * 2005-10-05 2007-04-05 Obidi T Y Alignment feature for casting and method
US20070261661A1 (en) * 2006-05-10 2007-11-15 Ford Global Technologies, Llc Modular Engine Cover
US7316215B1 (en) 2005-11-21 2008-01-08 Hayes Lemmerz International, Inc. Valve cover assembly for a vehicle engine and method for producing same
US20090169142A1 (en) * 2007-12-31 2009-07-02 Uwe Grass Bearing device
US7662482B2 (en) 2004-09-01 2010-02-16 Dow Global Technologies, Inc. Adhesion promoter
US20110017166A1 (en) * 2009-07-23 2011-01-27 Briggs & Stratton Corporation Rocker cover system
US8056522B1 (en) 2009-08-06 2011-11-15 Gary Mikle Carter Automotive valve cover
US20160319770A1 (en) * 2015-04-29 2016-11-03 Electro-Motive Diesel, Inc. Valve cover assembly
US20160319786A1 (en) * 2013-12-13 2016-11-03 Volvo Truck Corporation Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover
USD810144S1 (en) 2016-11-09 2018-02-13 Holley Performance Products, Inc. Engine valley cover
USD810143S1 (en) 2016-11-09 2018-02-13 Holley Performance Products, Inc. Valve cover
USD811439S1 (en) 2016-11-09 2018-02-27 Holley Performance Products, Inc. Engine valley cover
USD811440S1 (en) 2016-11-09 2018-02-27 Holley Performance Products, Inc. Engine valley cover
USD812102S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Engine valley cover
USD812104S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Valve cover
USD812103S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Valve cover
USD812644S1 (en) * 2016-11-09 2018-03-13 Holley Performance Products, Inc. Set of engine valve covers
USD813910S1 (en) 2016-11-09 2018-03-27 Holley Performance Products, Inc. Valve cover
USD818503S1 (en) * 2016-11-09 2018-05-22 Holley Performance Products, Inc. Set of engine valve covers
USD823897S1 (en) * 2016-11-09 2018-07-24 Holley Performance Products, Inc. Set of engine valve covers
US20190145518A1 (en) * 2017-11-16 2019-05-16 Electro-Motive Diesel, Inc. Coupling mechanism
US10393064B2 (en) * 2016-04-14 2019-08-27 Mahle Filter Systems Japan Corporation Seal structure for internal combustion engine
US11353112B2 (en) 2018-09-28 2022-06-07 Federal-Mogul Motorparts Llc Gasket and grommet installation assembly

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004010617B4 (de) * 2004-03-02 2008-04-24 Aktiebolaget Skf Verbindung zwischen einem Elastomerteil und einem Bauteil und Verfahren zum Herstellen der Verbindung
DE102005033904A1 (de) * 2005-07-15 2007-01-18 Dichtungstechnik G. Bruss Gmbh & Co. Kg Gehäuseverbundteil für ein Kraftfahrzeugaggregat
DE102005048953B4 (de) * 2005-10-13 2010-02-25 Woco Industrietechnik Gmbh Zwei-Komponenten-Zylinderkopfhaube
DE202006017242U1 (de) * 2006-03-31 2007-08-02 Hengst Gmbh & Co.Kg Verbrennungskraftmaschine mit einem durch Verklebung befestigten Kunststoff-Bauteil, und dementsprechendes Kunststoff-Anbauteil
DE202006014707U1 (de) * 2006-09-21 2008-02-14 Mann+Hummel Gmbh Dichtung für eine dichte Verbindung zweier Formteile
DE102008037104B4 (de) * 2008-08-08 2020-12-03 Deutz Ag Kurbelgehäuseentlüftungsanschluss an einer Brennkraftmaschine
DE102011079166A1 (de) 2011-07-14 2013-01-17 Mahle International Gmbh Brennkraftmaschine
US8720905B2 (en) * 2012-05-17 2014-05-13 GM Global Technology Operations LLC Sealed t-joint assembly
CN107524520B (zh) * 2017-08-18 2022-05-03 奇瑞汽车股份有限公司 喷油器的降噪结构
CN114263669A (zh) * 2021-12-27 2022-04-01 中铭谷智能机器人(广东)有限公司 一种隐藏式暗扣螺丝锁紧装置及锁紧方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8311084D0 (en) * 1983-04-23 1983-05-25 Massey Ferguson Perkins Ltd Machine cover
JPS61218754A (ja) * 1985-03-25 1986-09-29 Toyoda Gosei Co Ltd シリンダヘツドカバ−ガスケツト
DE3519205A1 (de) * 1985-05-29 1986-12-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Befestigung einer abdeckhaube an einem zylinderkopf
JPS62157267A (ja) * 1985-12-28 1987-07-13 Tsuchiya Mfg Co Ltd 合成樹脂製のロツカカバ−取付方法
US5364914A (en) * 1988-10-05 1994-11-15 Imperial Chemical Industries Plc Moulding composition comprising a thermoset component and thermoplast component
US5298587A (en) 1992-12-21 1994-03-29 The Dow Chemical Company Protective film for articles and method
US5433786A (en) 1993-08-27 1995-07-18 The Dow Chemical Company Apparatus for plasma enhanced chemical vapor deposition comprising shower head electrode with magnet disposed therein
US5363759A (en) 1993-10-12 1994-11-15 Ambrosio George A D Hand-operated can press
US5365901A (en) 1993-11-15 1994-11-22 Freudenberg-Nok General Partnership Low creep flange and engine cover assembly
US5375569A (en) 1994-01-26 1994-12-27 General Electric Company Multi polymer structures for internal combustion engines
US5492086A (en) 1994-09-15 1996-02-20 Durox Company, Inc. Valve cover
DE29603254U1 (de) 1996-02-23 1997-07-17 Bosch Gmbh Robert Zylinderkopfhaube einer Brennkraftmaschine
EP0860602B1 (fr) * 1997-02-21 2001-11-21 Dichtungstechnik G. Bruss GmbH & Co. KG Procédé de fabrication d'un couvercle de culasse d'un moteur à combustion interne et couvercle de culasse

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6860010B2 (en) * 2002-05-15 2005-03-01 Dow Global Technologies, Inc. Method of forming an automotive valve cover with integral positive crankcase ventilation
US20030214082A1 (en) * 2002-05-15 2003-11-20 Dow Global Technologies, Inc. Automotive valve cover with integral positive crankcase ventilation
US20050005890A1 (en) * 2003-07-10 2005-01-13 Dow Global Technologies Inc. Engine intake manifold assembly
US7556002B2 (en) 2003-09-19 2009-07-07 Dow Global Technologies Inc. Adhesively bonded engine and transmission parts
US20050061280A1 (en) * 2003-09-19 2005-03-24 Jialanella Gary L. Adhesively bonded engine and transmission parts
US6913498B1 (en) * 2003-11-13 2005-07-05 Brunswick Corporation Marine propulsion system with a polymer composite oil sump structure
US7662482B2 (en) 2004-09-01 2010-02-16 Dow Global Technologies, Inc. Adhesion promoter
US20070074696A1 (en) * 2005-10-05 2007-04-05 Obidi T Y Alignment feature for casting and method
US7316215B1 (en) 2005-11-21 2008-01-08 Hayes Lemmerz International, Inc. Valve cover assembly for a vehicle engine and method for producing same
US20070261661A1 (en) * 2006-05-10 2007-11-15 Ford Global Technologies, Llc Modular Engine Cover
US7389760B2 (en) 2006-05-10 2008-06-24 Ford Global Technologies, Llc Modular engine cover
US20090169142A1 (en) * 2007-12-31 2009-07-02 Uwe Grass Bearing device
US8166940B2 (en) * 2007-12-31 2012-05-01 Mahle International Gmbh Internal combustion engine with a camshaft bearing device
US8251030B2 (en) 2009-07-23 2012-08-28 Briggs & Stratton Corporation Rocker cover system
WO2011011211A3 (fr) * 2009-07-23 2011-04-21 Briggs & Stratton Corporation Système de couvre-culbuteur
US20110017166A1 (en) * 2009-07-23 2011-01-27 Briggs & Stratton Corporation Rocker cover system
US8056522B1 (en) 2009-08-06 2011-11-15 Gary Mikle Carter Automotive valve cover
US20160319786A1 (en) * 2013-12-13 2016-11-03 Volvo Truck Corporation Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover
US10119508B2 (en) * 2013-12-13 2018-11-06 Volvo Truck Corporation Cover of an internal combustion engine assembly having a common rail, engine assembly and automotive vehicle including such a cover
US20160319770A1 (en) * 2015-04-29 2016-11-03 Electro-Motive Diesel, Inc. Valve cover assembly
US10393064B2 (en) * 2016-04-14 2019-08-27 Mahle Filter Systems Japan Corporation Seal structure for internal combustion engine
USD812104S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Valve cover
USD811440S1 (en) 2016-11-09 2018-02-27 Holley Performance Products, Inc. Engine valley cover
USD812102S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Engine valley cover
USD811439S1 (en) 2016-11-09 2018-02-27 Holley Performance Products, Inc. Engine valley cover
USD812103S1 (en) 2016-11-09 2018-03-06 Holley Performance Products, Inc. Valve cover
USD812644S1 (en) * 2016-11-09 2018-03-13 Holley Performance Products, Inc. Set of engine valve covers
USD813910S1 (en) 2016-11-09 2018-03-27 Holley Performance Products, Inc. Valve cover
USD818503S1 (en) * 2016-11-09 2018-05-22 Holley Performance Products, Inc. Set of engine valve covers
USD823897S1 (en) * 2016-11-09 2018-07-24 Holley Performance Products, Inc. Set of engine valve covers
USD810143S1 (en) 2016-11-09 2018-02-13 Holley Performance Products, Inc. Valve cover
USD810144S1 (en) 2016-11-09 2018-02-13 Holley Performance Products, Inc. Engine valley cover
US20190145518A1 (en) * 2017-11-16 2019-05-16 Electro-Motive Diesel, Inc. Coupling mechanism
US11353112B2 (en) 2018-09-28 2022-06-07 Federal-Mogul Motorparts Llc Gasket and grommet installation assembly

Also Published As

Publication number Publication date
WO2002057611A1 (fr) 2002-07-25
JP2004525291A (ja) 2004-08-19
RU2003125279A (ru) 2005-01-10
BR0206715A (pt) 2004-02-17
MXPA03006435A (es) 2004-05-24
EP1354130A1 (fr) 2003-10-22
KR20040014449A (ko) 2004-02-14
CA2435318A1 (fr) 2002-07-25
CN1650100A (zh) 2005-08-03

Similar Documents

Publication Publication Date Title
US20020112684A1 (en) Adhesively bonded valve cover cylinder head assembly
US6543404B2 (en) Adhesively bonded engine intake manifold assembly
US20020144808A1 (en) Adhesively bonded radiator assembly
US7771641B2 (en) Component part with integrated seal
US7827950B2 (en) Valve cover assembly and method of construction
US7360519B2 (en) Engine intake manifold assembly
US20090173310A1 (en) Vehicle engine and snap-on engine cover assembly therefor and method of assembly of the cover assembly to the engine
JPH07180610A (ja) エンジンカバー組立体
US6536775B1 (en) Boundary gasket with integral bolt thread seals
US20070012271A1 (en) Cylinder head cover for a cylinder head of an internal combustion engine
US7040274B1 (en) Process for attaching the oil sump to an engine block of a combustion engine
US8141531B2 (en) Valve cover with decoupled NVH isolation and sealing features
US20030037743A1 (en) Casing cover having a device for assuring sealing forces
US20030024638A1 (en) Adhesively bonded water conductor assembly
US20230349466A1 (en) Gasket including elastomeric joints
JP3490533B2 (ja) インテークマニホルド用ガスケット
MXPA01007507A (en) Method for mounting the oil pan on an engine block of an internal combustion engine, internal combustion engine in which the oil pan is fastened to the engine block according to said method, and flange connections produced according to the inventive meth
JPS6263160A (ja) カバ−部材

Legal Events

Date Code Title Description
AS Assignment

Owner name: THE DOW CHEMICAL COMPANY, MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JONES, BART R.;NYKYFORIAK, EUGENE J.;BANK, DAVID H.;AND OTHERS;REEL/FRAME:016018/0382;SIGNING DATES FROM 20010402 TO 20020219

Owner name: DOW GLOBAL TECHNOLOGIES, INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DOW CHEMICAL COMPANY, THE;REEL/FRAME:016018/0311

Effective date: 20020524

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION