US 1927550 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
Sept. 19, 1933. F. F. KISHLINE SUSPENSION MEANS FOR HEAT CONTROL VALVES Filed Aug. 7, 1930 ATTOR EYS.
Patented Sept. 19, 1933' 1 o SUSPENSION MEANS FOR n'EA'r con'mop .Floyd 'F. Kishline, Detroit; Mich.; assignorv to,
. Graham-Paige Motors Corporation, a corpora- I tionofMiohiga n Q 7 I A t. 7' Application August-7,1930-Serial No.473,706; i. .v
r commend. 251-911 2 Thisinventionr relates to means for'mounting or journaling an exhaust control valve.
V The main objects of this invention are-to provide improved means for journaling a manifold heatcontrol-valve; to provide means forjournaling such a valvewhich will permit its Operation 7 .under widely differing conditions of temperature; to p rovide an improved mounting for the trunvnions of an exhaust gasdirecting valve in which yielding means automatically preserve-a snug fit at all times so astoprevent leakage and at the same time permit free rotation of the. valve rela- -tive to itsjournal bearings, I a I v e An illustrative embodiment of this invention is shown in the accompanyingdrawing, which Fig. 1 is a top plan view of an exhaust manifoldof=an internal combustion motor embodying m mprove v on- 1 .1;
Fig.; 2 is an enlarged vertical medial sectional view showing the'exhaust gas directingyalve-and drive shaft for rotating the same, the motive unit being shown in elevation.
is provided with a complementary-tapered face 1'1 j against which the bushing seats? h j The trunnion '11 is, also provided with a split bushing 18 axially 'slidable thereon whichis pro- "videdfwithla tapered face 19 for seatingagainst 60 a complementary tapered face of the bearing 13, The bushings15 and 18 are of identical con- Istruction and as shown in Fi ofthe drawing are provided lwith a saw out therethrough and at the diametrically opposite point'with a notch' 21, 6 -so that the bushings will decrease in diameteror "contact; aroundj'their trunnions when urged,
against the tapered faces oftheir respective bearv.
tings. The taperonthe face of these bushings is at an angle 'of 22 'degree's from the axis, as it has been found that with this. angle the bushings willcontr'a'ct around their trunnion's so as to snugly embrace them and atithe same time'will' not wedge (51' jam in the tapered faces of their respective bearings.
l and the outer end th'ereof is surrounded by one Fig. 3 is an enlarged fragmentarydetail view of ve 2. ich is i id y ecured-to showing the mounting of one of the compression o t 23 b a 1 1 w i e dS- u h springs. I V I i said sleeve and shaft. The end of the sleeve22 1?! Fig. 4-is'an enlarged View. infaoe elevation of h Surrounds the end l'l F a The trunnion 11 extendsib'eyond thebearing 13 av split bushingupon which ,each'end of "the valve is mounted. r.
In'the. construction shown in the drawing, an
'- -internal combustion motor "5-i's shownp'rovided with an' exhaust manifold 6 and-an intake manifold 7 which are joined together at their medial pointsas more'fully'shown anddescribed in my co-pending application, Serial Number 473,705,"
As disclosed in the above mentioned co-pendapplicationfmeans are provided for directing the exhaust gases into contact with the intake manifold for the purpose of raising 'its tem'perature'. This means comprisesa valve 8 integrally "drive-shaft 23 is formed on a shaft 9 so as to provide oppositely extending co-axialtrunnions wand; 11 whichp'ro- 'jectthrough and are journaled in bearings lzan d 13 formed in the end walls of thechamber which surrounds the valve 8. Anysuitable-meansmay be provided'for rotating the'shaft 9 and valve 8,
such as, for example, manual means as provided in my copending application or a thermo unit operating means such as illustrated in the drawing enclosedcin .thevhousing 34.
At the point where the trunnion val ye 8 a radially: extending annular'shoulder 14 is provided againstwhich abuts a bushing 15 rh e h s ner u t s ell -ttime. b in -p .1
10 .join'sthe 1 mentfsu'ch as housing Stand the other end of which bears n againstjthe'faceiof a fi'ange 35 which isrigidlyprovided with an axially= exteriding slot 25 for receiving 'a pin '26 inountedin the end' or the trunnion 11 so as tween.
The opposite endof the drive shaft 23 iseml "braced by one end'of a sleeve27, the other end of which surrounds shaft,28 by a pin v function and Vcoaction with the other elements andis rigidly'secured to a 29'. The "shaft 28 "and; its
are more fully set forthin the above mentioned oo-pending application. t q
which surrounds the ,The end' of 1 the, sleeve 27 provided with a" slot '30 which receives, .a pin 31 rigidlytmountedtransversely through the end of'the drive shaft 23 ,so' that relative r'otation'betweenithe sleeve?! and shaft 1 23"is preventedwhile permitting relativeaxial movement therebetween.
7 Meansare provided; for yleldingly urging the Y drive shaft23 axially toward the valve 8 10; seating the bushing 15'a'gainst its tapered hearing face 105 17 and comprises a helical compression spring'32 which surrounds the 'sleeve' 2'7. One end of the compression spring gbears, against'a fixed abutthe end wal1 33 of a thermo' -unit",
I anddrive $118,111 23 while permitting relative ax al movement. therebe- II claifni secured to the shaft 23 by a pin 36 which passes through the hub 37 of the flange and transversely through the shaft.
\ This spring 32' also serves as a torsion spring ,5 for rotatingthe shaft 23 and valve 8 as more fully set forth in my above-mentioned co-pending application.
Means are provided bushing '18 against its tapered bearing face 20 surrounds the protruding-end of the trunnion 11 i in spaced relation thereto. The spring 38 is mounted on a series of axially extendinglugs 39 which are struck from spring's'teel washers 40 and 41. The washers 40 and ilsurrouhd the trunnion 11 and the marginal edge of the openings therethrough are curved'inan axial direc- 'tion, so as to provide edge line contacts at the points 42 and 43 which bear against the end of 2 ing I8"respective1y'. In the operation 'of this device the apparatus isuassmbled as showni'in theedrawing with the spring 32 urging the shaft 23, valve 8 and trunnions l0 and 11, tothe left as viewed inFig.
2 of the drawing. The shoulder 14, againstwhichthe bushing 15 abuts,- urges thejtapered' face of thebushing l against the complementary tapered face ll of the bearing-1'2;, The'angle ofthe taper; and the strength of the tension of the spring 32 are soproportioned and arranged that thebushing willcbe squeezed snugly around the. trunnion and make a snug fit withboth i=7 he trunnion and the tapered face 17 at all times;
" The bushing -18 is urged against its tapered face ,20 by the spring 38 which is preferably of ,one-halfthe strength. of the spring32, thus equally distributing the tension of the spring 32 between thetwo bushingslii and 18, I j 7 By reason of the pinr3l being embraced in the slot 30, the shaft 23 is free to be moved axially with respect to the shaft 28 by the spring 32 ;.tion therebetween. l
I g The spring 38 is prevented from being injured shown in Fig. 4 of the drawing and provided g with the, interiorfnotch 21, these bushings will decrease in diameter when urged against their respective tapered faces and thereby snugly grip th'e trunnions upon which they are mounted.
Although but one specific embodiment of this 5 1- invention has been hereinshown and described, it will be understood'that. numerous details of the construction shown may be altered or omitted without departing from the spirit of this inventions as defined by the-following claims.
I 1. 'In combination, a valve, spaoed-trunnions on said valve, bearings forsaid trunnions, said bear- I ingshaving tapered fa'cesinclinedin the same di rection, complementary tapered, portions on said i trunnionslforseating against said tapered faces,
7 and yielding means for urging said tapered porfor yieldingly urging the.
and comprises a compression spring '38 whichings having tapered'ifaces, complementary tapered the collar 22 and/the outer face 44 of the bush while at the same time preventing relative rota-e By, flanging in the washers and the members against which they tions against said tapered'faces, said means operable in any position.
2. In combination, a valve, spaced trunnions on said valve theaxis of said trunnions being substantially horizontal, bearings for said trunnions, saidcbearings having tapered faces inclined in the, same direction, complementary tapered portions on said trunnions for seating against said tapered faces, said tapered portions being independently movable relative to each other, and yielding means .for. I ging said tapered portions against said tapered faces; t
3. .In combination, a valve, spaced trunnions on said valve, bearingsfor said trunnions, said bearportions on said trunnions for seating against said tapered faces, said tapered portions being independently movable relative to each other, a
spring urging said valve and one of said tapered portions against its bearing face, and a'second spring acting betweensaid'first' mentioned spring and the other of said tapered portions, for urging said other tapered portions against its bearing face. 4. In combination, a valve, co-axial oppositelyextending spaced trunnions on said ;valve the axis of said trunnions being substantiallyhorizontal, bearings having tapered faces forsaid trunnions, one of said trunnions having a tapered portionfforv seating against one of said bearing faces,
a spring urging said valve and trunnions axially to hold said tapered portion snugly against its bearing face, a tapered bushing axially slidable on the 'otherof said trunnions, an'da spring for urging said bushing against the "other of said tapered 1'10 bearing faces.
5. In combination, a valve, co-axial oppositely extending spaced trunnions on said valve, bearings having tapered faces for said trunnions, one '3 of said trunnions having a tapered portion for 1'15 seating-against one of said bearing faces, a spring urging said valve and trunnions axially to hold said'tapered portion snugly against itsbearing face, a tapered bushing axially slidable on the s other ofs'aidt-runnions, and a second spring-act- 'ing between said first mentionedspring andsaid bushing for urging said bushing axially'against its bearing face. r 7 i ,6. In combination,.a valve,co-axial oppositely ,1 extending spacedtrunm'ons. on said valve, bearings having, tapered faces for said trunnions, 'one' of saidtrunnions'havinga tapered portion for seating against one of said bearingfaces, a-spring urging said valve and trunnionsaxially to hold; said tapered portion snugly against its bearing 1 face, a tapered bushing axially slidable on" the other of said trunnions, and a second spring act- 1 ing between said first-mentioned spring and said bushing for urging said bushing axially againstgits bearing face,-- said second spring being 10f substantially half thestrength of said first mentioned spring.
-7. In combination, a valve, trunnions on. said valve, bearings for said trunnions, said bearings having tapered faces, complementary tapered bushings on 'saidtrunnions for seatingagainst said tapered faces, said bushings being split so as to decrease in diameter when urged against said tapered faces and springs for urging said bushv ings against said tapered faces. 8. In combination, a valve, trunnions on said valve, bearings for's'aid trunnions, said bearings having tapered faces, complementary tapered bushings .on said trunnions for seating against said tapered faces, said bushings being independplementary tapered portion on said shaft for seating against said tapered bearing face, a helical spring surrounding said shaft in spaced relation thereto, a washer engaged by one end of said spring and bearing against said shaft, the marginal edge of the opening in said washer being curved so as to have line contact with said shaft for transmitting a minimum of heat from said shaft to said spring. 7 FLOYD F. KISHLINE.