Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You and Your Team.

Learn More →

Month in the Patent Office

Month in the Patent Office These abstracts of British Patent Specifications are taken, by permission, from the officially prepared abridgments classified in Groups. Sets of Group abridgments can be obtained from the Patent Office, 25 Southampton Buildings, W.C.2, sheet by sheet as issued, at a subscription of 10s. per Group. Copies of the full specifications are obtainable at the same address, price 1s. each. tractor assembly. As shown in FIG. 1, the induction GROUP XXVII manifolds 224, which are attached to the flanges 75, 600,376. Radial engines; cooling; lubricating. FIG. 9, on the cylinder heads, arc located between the United Aircraft Corporation. October 3, 1945, rocker boxes and thus keep the diameter of the No. 25714. Convention date, September I, 1944. engine to a minimum. The supercharger 36, FIG. 12, (Classes 7 (ii), 7 (iv) and 7 (vi).) with a vaned diffuser 230 has an inducer 274 and A multi-row radial air-cooled aircraft engine, impeller 228 driven from the crank-shaft through a FIGS. 1 and 2, having in the embodiment shown four spring drive and hydraulic damper unit 206 (see radial rows and seven helical banks, has each of its Group XXIV), a gear 240 attached to said unit, and banks supplied by a separate magneto 116 through the ignition harness 117 and a separate induction through cither two low-speed fluid couplings 234 (one only of which is shown) and gears 244, 250 and manifold 224 from the supercharger casing 36. The 326 or two high-speed fluid couplings 247 (one only engine is made up of six main parts, namely the pro­ of which is shown) and gears 242, 248 and 326. A fuel peller shaft housing 30, magneto drive housing 32, feed valve 276 in web or boss 278 discharges fuel, as crank-case 34, supercharger 36, accessory drive hous­ metered and proportioned to airflow by the car­ ing 38 and auxiliary drive housing 39. The propeller is scavenged by pump 46, FIG. 3, which also scavenges burettor, into the spinner cup 280 which is carried by shaft 40, FIG. 3, is supported in the housing 30 by a the nose and magneto sections 30, 32, and discharges and rotates with the impeller 228. The fuel passed bearing and thrust ball race 48, 50 and bearings 62 into the main scavenger oil line 103. Each crank-case through nozzles 282 into the airstream and valve 276 and 64 and is connected to the crank-shaft 58 through section is scavenged by a separate internal gear shuts when the fuel pressure exceeds a predetermined sun-and-planet gearing 52, 54, 56 and 60. The gear 54 pump. value. The accessory drive housing 38 contains seven having its teeth cut helically so as to produce a rear- Cooling of the engine is effected by a series of air radial shafts and mountings for engine accessories wardly acting thrust component, has in its rear face a baffles shown in FIGS. 1 and 13. The inner cowl 57 such as oil pumps, tachometers, etc. All the shafts, plurality of equi-spaced pistons 78 which bear against extends backwardly in gores 53 which bridge the one of which 346 is shown, arc driven from the bevel the fixed ring 80 and gear 54 is splined to the casing gap between the cylinders wholly at the front and gear 294 which is splined at 313 to the shaft 308 which 30 at 72, 74. Oil from a pump is forced into the partially at the rear. Radial bulkheads 59 connect runs through the hollow impeller shaft and is splined cylinders behind the pistons 78 to balance the thrust one longitudinal edge of the gores 53 to the outer at 310 to the crank-shaft 58. The cooling fan 364 component, and as the engine torque is directly edge of the crank-case and extend from one side which has turbine blades 365 between the ring shrouds proportional to the oil pressure in these cylinders, of the front cylinder in one bank to the opposite 367 and 368 is driven by low- or high-speed fluid engine torque may be read directly from a pressure side of the rear cylinder in an adjacent bank couplings 372 or 375 and a series of gears 398, 400 gauge connected to said cylinders. The magneto forming air ducts 55. Inter-cylinder baffles 65 are and 382 which drive the gear 380 carried by the spider housing 32, no . 9, has seven magneto mountings 115 also supplied. 378 splined to the shaft 308 at 313. and seven magneto driving shafts 118 which are The power take-off shaft which geared to the crank-shaft 58. The crank-case, FIGS. 9 may be used to drive an auxiliary and 11, is composed of a number of parts 124, 126, supercharger, a second propeller 128, 130 and 132 which arc held together by the bolts 134. The valve cam rings 150 which are geared direct or a second fan, etc., is keyed to the shaft 336 which is driven by to the crank-shaft 58 by gears 164, 168, 170 to run the sun-and-planet gearing 406, at one-sixth engine speed, each carry a three-lobe inlet 408 and 410. and exhaust cam track 154 and 156 respectively which operate the rocker arms 155 and 157 through the Lubricating.—Oil is supplied tappets 146 and push-rods 81 and 83. The crank­ from a tank, having its con­ shaft (see Group XXIV) is carried by five bearings nexions at 301, 303, FIG. 2, to a 208, the centre one of which is flanged to locate the pump which forces oil through shaft axially and transmit thrust to the crank-case. the strainers 306, FIG. 12, to the The two outer bearings are pressed and pinned in the interior of the crank-shaft and by holes 131 of the partitions 163. The centre three a passage to the top crank-case bearings arc carried in disks 138 which are axially passage 104. Oil is fed to the split and have keys 139 inserted between their faces rocker boxes through the push- which engage the partitions 162. The disks 138 arc rods, FIG. 9. Drain oil from made of a material with a higher coefficient of thermal the rocker boxes of the top expansion than the crank-case so that for easy cylinders is returned to the crank- assembly they arc made with a sliding fit which case through the push-rod cover tightens to a force fit when the engine warms up. tubes and the other rocker boxes The cylinder liner 214 has a cooling muff 216 and a are drained down the line of cylinder head of aluminium alloy shrunk on it and each bank by pipes 271 and be­ the rocker boxes 218 and 220 arc diametrically tween the banks by pipes 273 to the opposed so that the cylinders may be reversed when front oil sump 281 and the rear oil the engine parts arc to be used as a pusher instead of sump 279, FIG. 26. The front sump November 1950 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Month in the Patent Office

Aircraft Engineering and Aerospace Technology , Volume 22 (11): 1 – Nov 1, 1950

Loading next page...
 
/lp/emerald-publishing/month-in-the-patent-office-mCjLyWcNJS
Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb031971
Publisher site
See Article on Publisher Site

Abstract

These abstracts of British Patent Specifications are taken, by permission, from the officially prepared abridgments classified in Groups. Sets of Group abridgments can be obtained from the Patent Office, 25 Southampton Buildings, W.C.2, sheet by sheet as issued, at a subscription of 10s. per Group. Copies of the full specifications are obtainable at the same address, price 1s. each. tractor assembly. As shown in FIG. 1, the induction GROUP XXVII manifolds 224, which are attached to the flanges 75, 600,376. Radial engines; cooling; lubricating. FIG. 9, on the cylinder heads, arc located between the United Aircraft Corporation. October 3, 1945, rocker boxes and thus keep the diameter of the No. 25714. Convention date, September I, 1944. engine to a minimum. The supercharger 36, FIG. 12, (Classes 7 (ii), 7 (iv) and 7 (vi).) with a vaned diffuser 230 has an inducer 274 and A multi-row radial air-cooled aircraft engine, impeller 228 driven from the crank-shaft through a FIGS. 1 and 2, having in the embodiment shown four spring drive and hydraulic damper unit 206 (see radial rows and seven helical banks, has each of its Group XXIV), a gear 240 attached to said unit, and banks supplied by a separate magneto 116 through the ignition harness 117 and a separate induction through cither two low-speed fluid couplings 234 (one only of which is shown) and gears 244, 250 and manifold 224 from the supercharger casing 36. The 326 or two high-speed fluid couplings 247 (one only engine is made up of six main parts, namely the pro­ of which is shown) and gears 242, 248 and 326. A fuel peller shaft housing 30, magneto drive housing 32, feed valve 276 in web or boss 278 discharges fuel, as crank-case 34, supercharger 36, accessory drive hous­ metered and proportioned to airflow by the car­ ing 38 and auxiliary drive housing 39. The propeller is scavenged by pump 46, FIG. 3, which also scavenges burettor, into the spinner cup 280 which is carried by shaft 40, FIG. 3, is supported in the housing 30 by a the nose and magneto sections 30, 32, and discharges and rotates with the impeller 228. The fuel passed bearing and thrust ball race 48, 50 and bearings 62 into the main scavenger oil line 103. Each crank-case through nozzles 282 into the airstream and valve 276 and 64 and is connected to the crank-shaft 58 through section is scavenged by a separate internal gear shuts when the fuel pressure exceeds a predetermined sun-and-planet gearing 52, 54, 56 and 60. The gear 54 pump. value. The accessory drive housing 38 contains seven having its teeth cut helically so as to produce a rear- Cooling of the engine is effected by a series of air radial shafts and mountings for engine accessories wardly acting thrust component, has in its rear face a baffles shown in FIGS. 1 and 13. The inner cowl 57 such as oil pumps, tachometers, etc. All the shafts, plurality of equi-spaced pistons 78 which bear against extends backwardly in gores 53 which bridge the one of which 346 is shown, arc driven from the bevel the fixed ring 80 and gear 54 is splined to the casing gap between the cylinders wholly at the front and gear 294 which is splined at 313 to the shaft 308 which 30 at 72, 74. Oil from a pump is forced into the partially at the rear. Radial bulkheads 59 connect runs through the hollow impeller shaft and is splined cylinders behind the pistons 78 to balance the thrust one longitudinal edge of the gores 53 to the outer at 310 to the crank-shaft 58. The cooling fan 364 component, and as the engine torque is directly edge of the crank-case and extend from one side which has turbine blades 365 between the ring shrouds proportional to the oil pressure in these cylinders, of the front cylinder in one bank to the opposite 367 and 368 is driven by low- or high-speed fluid engine torque may be read directly from a pressure side of the rear cylinder in an adjacent bank couplings 372 or 375 and a series of gears 398, 400 gauge connected to said cylinders. The magneto forming air ducts 55. Inter-cylinder baffles 65 are and 382 which drive the gear 380 carried by the spider housing 32, no . 9, has seven magneto mountings 115 also supplied. 378 splined to the shaft 308 at 313. and seven magneto driving shafts 118 which are The power take-off shaft which geared to the crank-shaft 58. The crank-case, FIGS. 9 may be used to drive an auxiliary and 11, is composed of a number of parts 124, 126, supercharger, a second propeller 128, 130 and 132 which arc held together by the bolts 134. The valve cam rings 150 which are geared direct or a second fan, etc., is keyed to the shaft 336 which is driven by to the crank-shaft 58 by gears 164, 168, 170 to run the sun-and-planet gearing 406, at one-sixth engine speed, each carry a three-lobe inlet 408 and 410. and exhaust cam track 154 and 156 respectively which operate the rocker arms 155 and 157 through the Lubricating.—Oil is supplied tappets 146 and push-rods 81 and 83. The crank­ from a tank, having its con­ shaft (see Group XXIV) is carried by five bearings nexions at 301, 303, FIG. 2, to a 208, the centre one of which is flanged to locate the pump which forces oil through shaft axially and transmit thrust to the crank-case. the strainers 306, FIG. 12, to the The two outer bearings are pressed and pinned in the interior of the crank-shaft and by holes 131 of the partitions 163. The centre three a passage to the top crank-case bearings arc carried in disks 138 which are axially passage 104. Oil is fed to the split and have keys 139 inserted between their faces rocker boxes through the push- which engage the partitions 162. The disks 138 arc rods, FIG. 9. Drain oil from made of a material with a higher coefficient of thermal the rocker boxes of the top expansion than the crank-case so that for easy cylinders is returned to the crank- assembly they arc made with a sliding fit which case through the push-rod cover tightens to a force fit when the engine warms up. tubes and the other rocker boxes The cylinder liner 214 has a cooling muff 216 and a are drained down the line of cylinder head of aluminium alloy shrunk on it and each bank by pipes 271 and be­ the rocker boxes 218 and 220 arc diametrically tween the banks by pipes 273 to the opposed so that the cylinders may be reversed when front oil sump 281 and the rear oil the engine parts arc to be used as a pusher instead of sump 279, FIG. 26. The front sump November 1950

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Nov 1, 1950

There are no references for this article.