US2991774A - Combination intake manifold and tappet cover gasket - Google Patents

Description

July 11, 1961 R, s, RAREY A59-774 COMBINATION INTAKE MANIFOLD AND TAPPET COVER GASKET Filed Aug. 18, 1958 3 Sheets-Sheet 1 #fray/VEVS.

July 11, 1961 R. s. RAREY 2,991,774

COMBINATION INTAKE MANIFOLD AND TAPPET COVER GASKET Filed Aug. 18, 1958 3 Sheets-Sheet 2 gli@ INVENTOR. ajerzz Ware?.

R. S. RAREY July 11, 1961 COMBINATION INTAKE MANIFOLD AND TAPPET COVER GASKET Filed Aug. 18, 1958 3 Sheets-Sheet 5 Q Q NN a a NHJU Q WN wmw Sw \W MN N um NN k mML ML N .ya (s. MW n MS. i f m w .Mw *IWW v 2,991,774 Y COMBINATION vINTAKE.'MANIFOLD 'AND TAPPET COVERY GASKET K 'Ro'bert'S. Rarey, Birmingham, Mic'l1.,'a$ign,0r to Chrysler Corporation, Highland Park, VMich., a 'corporation lof Delaware Filed Auge-18, 1958', Ser. No. 755,477 10`Clain1s. .(Cl. 12S-55) rlhis invention relates to V-typeinternal ycombustion enginesutilizingunitary-.structures of intake manifold gaskets and tappet', chamber covers, and further relates to the mounting @sunface structure of said-engines for accom- -modating these Iunitary structures, .thebroad features ...of

-which aredisclosed in my copending-jointV application with Frederick R. Shrimpton Serial No. 749,703, `filed lluly'21, .1958, now Patent No. 2,941,521, and ownedby applicants assignee.

Heretofore, intake manifold Ygaskets vand tappet chamber covers and the gaskets therefor, for use-on-V- engines --were individually produced and individually` assembledon the engine. Such individual production and assembly inherently :results in increased machinery and labor costs which is .to be` a'voided in competitive industry. Thesep- Varate structureon the engine required for the mounting of manifold gaskets and tappet chamber covers and gaskets vdid notheretofore utilize the intake manifold mounting surfaces of the heads which, it has been discovered, `pro- `vides a convenient and adequate surface for the attachment of the tappet chamber cover'to the engine and Velimi- '1 nates the-need for side anges on-the engine for mounting said cover. Furthermore, it has been discovered that by castingorY machining, the upper portions ofthe end walls lof the engine block yand the intake manifold mounting surfaces of the heads into a substantially continuous mounting wall the aforementioned combined structure could be readily lmade to lit on said continuous Wall and be :clamped thereto to'simultaneously provide intake manifold gaskets and a tappet chamber cover for said engine. An object of this invention is to provide an `integral structurecapable of being produced by a single stamping `operation and which can adequately serve as .intake vmanifold gaskets and a tappet chamber-cover for a V-engine. Another object is to eliminate theneed for separate Uintake manifold gaskets and tappet chamber covers and the gaskets for said covers.

Another object is to combine engine block and engine head structure to provide a substantially continuous vmounting Wall for the unitary structure of intake manivfold gaskets and a tappet chamber cover.

. Further objects and advantages will become apparent with reference to the following drawings and description, in-which:

FIGURE l represents a top elevational view of the unitary structure of intake manifold lgaskets and tappet -of aV-engineshowing the intake manifold and .combined vstructureof intake manifold gaskets .andtappet chamber cover in place; `FIGURE 7 represents a sectional longitudinalview of the V-engine of FIGURE 6 with the intake manifold re- ,Unitedl States ICC Y Y .2 l moved taken along rline 7-7 of FIGUREtSCin;the,.dire`c :tion of thearrows; and

FIGURE 8 is an end view of the assembled V-engine :with .the .intakemanifold and .the unitary struc'stui'le of yintake manifold gasket and `tappet chambercoverin posi- -manifold 24, vand apertures 18 are located to coincide with hot spot crossover conduits 22 of intakemanifold '24 (seeFIGURE 6). :Aperturas 16 and 18.a1so correspond in position to kconduits 21 and .23 respectively in heads 26 of a V-engine 28. An air .coolant chamber.27 for exhaust passage 23 which connects to `hot lspot crossover conduit 22 partially surrounds conduit 23 in each of said heads 26. `Encircling each of the aperturesl and18 and manifold clamping .bolt .apertures 32 in intake manifold gaskets 12 is a bead 30 raised from the. upper surface of structure 10 and extending continuouslyr around the entire periphery of said structure adjacent thefouter edge thereof.

End flanges l34 integral with the opposite upturned ends 35 of cover 14 and extending vat an` angle .therefrom-,are provided with clamping bolt apertures 36. Clamping bars 40 .having clamping bolt apertures 41 therein corresponding in position to apertures 36 in endflanges 34 are. adapted to beV mounted on said end flanges as shownin FIGURE 5. Support walls 38- integral with block .33 of V-.engine 28 and spanning the cylinder banks 50I and. 52 .of .said engine are provided with threaded clamping bolt receiving apertures 31 which correspond in position to the clamping bolt apertures of end anges 34 and. clamping bars 40. In the assembled condition -shown in FIGURESS and 8, clamping bars 40 are mounted on endilanges 34 whichflanges are mounted on walls 38. This assembly is secured to support walls 38 by bolts .4Z-which bolts pass through the aligned apertures-41 and,36 andere threadably secured in apertures 131 in Walls 38.

As shown in the broken awayportion of the. gasket of FIGURE 5, the upper portions of the end walls of engine 28 forming support walls 38 andthe intake manifold mounting walls 39 of heads 216 formI a continuousmounting surface upon which the unitary structure 10 is mounted. Suppont walls 38 and intake manifold .mounting Walls 39 also denne the perimeter of the ,opening `through the block leading into the tappet chamber 37- shown in FIGURE 5. Bead 30 -which projects upfrom the structure 10` is `designed to create an .oiltight .seal by becoming crushed under the intake manifold 24and bars 40 as said manifold and bars are clamped by boltsto said mounting walls 39 and Ysupports 38 respectively.

Stifening ribs 44 -and 46 areformed in trough 14-of the cover by pressing grooves insaid trough. These ribsvprevent the cover from vibrating too violently during .engine operation which vibration might cause-a .defect in the seal formed by bead 30. It is noted that trough 14 is designed so as to accommodatethe lowest portion of the intake manifold, Aand 'the abovementionedstiiening ribs also prevent said trough from vibrating against said manifold portion. Y

I claim: 1. A .Combination structureof intake manifoldvgasket's and a 'valve tappet chamber cover comprising a 'trough like body having narrow -flanges 'at 'the opposite longitudi.

nal ends thereof and having side anges extending longitudinally thereof, said side anges each having a plurality of intake aperatures and a single exhaust crossover aperture, therein, a single bead extending continuously around said combination structure adjacent the periphery thereof and a plurality of ribs in said body providing stiffness thereto.

2. A unitary structure of intake manifold gaskets and 'a valve tappet chamber cover comprising a trough like body having ribs extending longitudinally thereof and a plurality of transverse'ribs intersecting said longitudinal ribs, a flange on each end of said trough having spaced apertures therethrough for receiving clamping bolts, a manifold iange on eaoh side of said trough and integral therewith, each said manifold ange having two pairs of s ide by side intake apertures spaced therealong, a single exhaust crossover aperture in each said manifold iiange nintermediate said pairs of intake apertures, a plurality of `clamping bolt apertures spaced along each said manifold ange, and a continuous sealing rib adjacent the periphery of said structure and the peripheries of fthe apertures therethrough.

" 3. A unitary structure providing intake manifold gaskets and a valve tappet chamber cover comprising a trough like body having a manifold ange on each longitudinal edge thereof, each said manifold ange having `therein two pairs of side by side intake apertures and a single crossover aperture located between said pairs of intake apertures, a single bead extending around said structure and around each aperture therein adjacent the peripheries thereof, a longitudinal rib in the bottom of said body and a plurality of transverse ribs in said body intersecting said longitudinal rib and providing stiffness to said body.

n 4. In a V-engine having a cylinder block with opposed cylinder banks and heads and an intake manifold posi- `tioned on said heads intermediate and spanning said banks, a unitary structure comprising a trough like body "having opposite end anges seating on said block and having side flanges seating on said heads, said end and side anges being coextensive to surround said trough like body, a plurality of stiifening ribs running longitudi- `nally and transversely of said body, a pluarlity of aper- .tures in said side flanges for coinciding with apertures in said heads, and a continuous bead-like projection on the upper face of said anges extending around the periphery of said coextensive anges and around the peripheries of each of said apertures in said side flanges.

5. In a V-engine having a block wit-h opposed cylinder Abanks and heads extending therefrom an an intake manifold positioned on said heads intermediate said banks, 'an integral structure comprising a trough like body, said 'body having opposite end flanges extending outwardly from said body in a plane substantially parallel to the bottom of said body and seating on said block, opposite side flanges integral with said body and diverging from each other at a substantially right angle and seating on said'heads, said anges being coextensive to surround said trough like body, a plurality of stifening ribs running longitudinally and transversely of said body, a plurality of apertures in said side flanges for coinciding with apertures in said heads, and a continuous bead-like projection on the upper face of said flanges extending around the 'periphery of said structure and around the peripheries of `said apertures in said side flanges.

i 6. In a V-engine, a block having opposed cylinder banks and having heads on said block and extending ftherefrom, an intake manifold lying intermediate said "banks and said heads and having conduits positioned on said heads, each of said heads having conduits therein `corresponding in position to said manifold conduits, each of said heads having au intake manifold mounting wall thereon, said block having a support .wall at each end Qthereofconnecting said cylinder banks, said support walls rsaid intake manifold mounting Walls forming a sub- 4 stantially continuous supporting wall, and a unitary strucv ture of intake manifold gaskets and a tappet chamber cover mounted on said continuous supporting wall to 1provide a seal between said intake manifold and said eads.

7. In a V-engine, a block having opposed cylinder banks and having heads on said block and extending therefrom, a tappet chamber intermediate said banks, an intake manifold having conduits therein, each of said heads having conduits therein corresponding in4 position to said manifold conduits, each of said heads having an intake manifold mounting wall thereon, said block having a support wall at each end thereof connecting said cylinder banks, said support walls and said intake manifold mounting walls forming a substantially contin nous supporting Wall, and a unitary structure of intake manifold gaskets and a tappet chamber cover mounted on said continuous supporting Wall, said manifold gaskets of said structure having apertures therein corresponding in position to the conduits of said intake mani- Vfold and said heads, said intake manifold being mounted on said intake manifold gaskets and secured to said intake 'manifold mounting Walls.

8. In a V-engine, a block having a tappet chamber therein, an opening in the top of said block communi- ',cating with said tappet chamber, opposed cylinder banks and heads extending vangularly from said block, an intake manifold positioned intermediate said banks, 4said manifold having intake conduits spaced therein, each of said heads having conduits therein corresponding Yin spaced position to said intake manifold conduits, each of said heads having an intake manifold mounting wall there 'on, a support wall at each end of said block connecting 'said cylinder banks, said intake manifold mounting walls on said heads and said support walls on said block forming a continuous mounting wall defining saidropening in said block, a unitary structure of intake manifold gaskets and a tappet chamber cover mounted on said continuous mounting wall, said manifold gaskets having apertures therein corresponding in position to lthe conduits of said intake manifold and said heads, and a continuous sealing bead raised up from the upper surface of said -combined struc-ture and extending peripherally around said unitary structure and the apertures therein and spaced from the edges of said unitary structure and said apertures, said manifold being mounted on said gaskets and secured to said'heads.

9. In a V-engine, a block having a tappet chamber therein, an opening in the top of said block communicating with said tappet chamber, opposed cylinder banks and heads extending an gularly from said block, an intake manifold positioned intermediate said banks, said manifold having intake conduits spaced therein, each of said heads having conduits therein corresponding in spaced position to said intake manifold conduits, each of said heads having an intake manifold mounting wall thereon, a support wall at each end of said block connecting said cylinder banks, said intake manifold mounting walls on said heads Aand said support walls on said block forming a continuous mounting wall defining said opening in said block, a unitary structure of intake manifold gaskets and a tappet chamber cover mounted on said continuous mounting wall, said cover having end anges resting on said support walls of said block, said manifold gaskets having apertures therein corresponding in position to the conduits of said intake manifold and said heads, a continuous sealing bead raised up from the upper surface of said combined structure and extending peripherally around said unitary structure and the apertures therein and spaced from the edges of said unitary structure and said apertures, said manifold being mounted on said gaskets and secured to said heads, and a clamping bar mounted on each said end ange of said cover and secured to said ,support .walls on said block.

10. A sheet like member having a trough therein, end

5. portions integral with said trough and curving upwardly and outwardly from the bottom thereof to define narrow end anges extending substantially parallel to the bottom of said trough, side portions integral with said trough and curving upwardly from the bottom thereof forming side anges, said end anges lying lbelow said side anges, a plurality of stiifening ribs in the bottom of said trough, a plurality of apertures in each said side flange, the ends of said side anges being directly connected to the ends of said end anges to form a continuous tlange, and a continuous sealing bead projecting upwardly from the surface of said sheet like member adjacent the periphery thereof and encircling said member and each of said apertures in each said side ange.

References Cited in the ile of this patent UNITED STATES PATENTS OTHER REFERENCES Ford Passenger Car Shop Manual, 1949-50-51, page 32, copyright 1950.

Images