RU1822462C - Arrangement for lubricating cams of distribution shaft - Google Patents

Abstract

Using internal combustion engines. The inventive device comprises a motor housing 1, a camshaft (RV) 2. a bearing housing 3, valves 4 support bolts 5 and valve actuating levers (RPK) 6. RV 2 has bearing surfaces 7, cams 8, holes 9 and 10. RPK 6 on the upper side has a working surface 11 and a closed protrusion 12 forming an oil bath 13, at the bottom of which an annular storage insert 14 is installed, made of porous material, for example, sponge rubber, porous cermets, felt, etc. On the inner upper wall corps 3 you the cells 15 are filled in which the oil storage inserts 16 are laid, also made of porous material. This design of the PB and RPK allows to increase their operational durability due to the fact that during the start of the engine, when the oil from the pump has not yet reached the lubrication points of PB 2, the lubrication of the working surfaces of PB 2 and RPK 6 is carried out with oil stored during operation the engine in the oil bath 13 RPK 2 and in the storage inserts x 16. 1 zppf-ly, 7 ill. ё 00 th

Description

The invention relates to mechanical engineering and can be mainly used in gas distribution mechanisms of piston internal combustion engines of vehicles (tractor vehicles and others)

The aim of the invention is to increase the operational life of the working surfaces of camshaft cams and valve actuators in contact with each other by accumulating oil during operation of the internal combustion engine and draining it into the oil bath of the lever after stopping the engine for use during subsequent engine starting

On fi | 1 and 2, a device for lubricating the working surfaces of the camshaft cams and valve actuators is shaken; respectively transverse and longitudinal (B-B) zZrezy, in Fig. 3 in cross section shows the position 1 of the lubrication device in which the top of the cam is out of contact with the lever, in Fig. 4 shows a top view of the lever when the valve is water (view B in Fig. 3) , Fig. 5 shows a view of the porous insert of the drive mounted internally on the bearing housing.

The device for lubricating the slave cams on the front of the cam and the drive roar of the drive contains a piston with 1 piston inner double piston casing 1 1 camshaft 2 housing 3 camshaft bearings and cape valves 4 adjusting support bolts and drive rods 6 are spring loaded kgpanop

Distribution va / i with bearing surfaces 7 cams Into central oil passage 9 and radial holes 10 in cams

The levers b on the upper side have a working surface 11 and a closed protrusion 12 whose top is located above the working surface 11 by an amount A. This forms an oil bath 13 for the cam 8 of the camshaft, on the bottom of which, around the working surface 11, an annular storage insert 14 for oils

On the inner upper wall of the housing 3, the cells 15 are made open downward, inside which are installed the upper insert storage 16 for oil

Storage inserts 14 and 16 are made of porous or fibrous materials, for example, porous ceramics or cermets (sintered and pressed metal powder), pumice stones, thin wires from metal rubber, pressed wire channels (sponge

10

fifteen

twenty

25

thirty

35

40

45

fifty

55

zina warriors / yuka foam rubber and other materials; materials satisfying / slop oil and heat resistance

Depending on the material of the storage inserts 14 and 16, their fastening to the body 3 and the lever 6 is carried out in an appropriate way, for example, by gluing by welding by mechanical fastening and by each other methods. Cells 15 in the housing 3 can be made without (genok ()

The device for winding works as follows

During the operation of the engine, the camshaft 2 rotates and the oil from the pump flows through the channels in the DGITIELCH housing to the central PM 9 hole and then to the radio} die tube 10 in the cams. lever 6 fills the oil panels 13 of the levers 6 and the drives 14 located in the bottom of the flap and also distributes the plugs i to the top inserts of the nakppin pi 16 and penetrates them into the porous (. roe about naktpm w b in it

When the rotation of the spreader 2, the cams 8 provide the return movement of the reach 6 nm rrug (| erg (their heads are the opomnons of the bombs 5 i1 toon MTVE but they provide a wrench-ratchet movement of the NTM 4 valve

(n () h ho / iMt vio number of bodies, rods of the lever b yogotsar n n HI (j t oil bath 13 r ci) i (i drives 1 (1 f, i right i / tiM ii iy ,; i p4 ivnet In the bosom of cont) Mg) work tj tir ere cam with ITCH 11 ITIL 1 1 lil T (j OK ПН1СТ СМЛ1КИИ 0 (г-, м И И Т Т С1 Л - ДСШН And averaging .chn, whether i, in turn, reduces the number of cam faces and pi 14 n OF and increases the operational durability of the cams.

 stopping days. like flax and oil-suck feeds may and. gas distribution lubricants gk mshima is excellent). Oil from the oil production of the milk channels of the gas supply is limited to j-JHIUM located in j. in tv-lubrication systems goes down, from the engine cards through leaks to the main drive; (through the lubrication points and through the lubrication points below the camshaft

The oil that is stored during the operation of the engine / 1 (oil pump) in the upper porous insert accumulators 16 after the engine (oil pump) is stopped, flows to the cams 3 of the distributor 2 and then enters the oil baths of the 13 levers 6; into bath 13 when the engine and oil pump were running.

This ensures that the working surface 11 of the lever with oil is coated with oil and reliable lubrication of the working surfaces of the camshafts and levers during engine start-up, which reduces wear on the working surfaces and increases their operational durability; this ultimately reduces the cost of operating the vehicle, increasing its resource.

When the engine is restarted for some time (several seconds), the lubrication system is filled and at that time the friction surfaces of the cams and levers do not receive lubrication from the oil pump, but thanks to the oil baths on the levers filled with oil, the working surfaces of the cams and levers are greased generously this previously stored grease. After filling the system with lubricant, the operating mode of the gas distribution lubrication starts.

Formulas of the invention

Claims (2)

1. Device for lubricating camshaft cams and drive levers of valves, comprising a bearing housing, a camshaft with cams and levers of an actuator of valves with oil located under a camshaft a bath in the contact zone with the cams, characterized in that, in order to increase the operational durability of the working surfaces of the camshaft cams and drive levers in contact with each other valves by accumulating oil while the engine is running and draining it into the lever oil bath after stopping the engine for use during subsequent engine start-up, on the upper inner The bearings are mounted on the wall of the bearing housing against camshaft cams, oil storage inserts made of porous or fibrous materials. 2. The device according to claim 1, characterized in that the oil storage inserts are additionally mounted on the valve drive levers. 66 tz 6 Щ17) (. g Editor Fb / .Ј Compiled by L. Ivachev Tehred M. Morgenthal G AT rtsr. 5 Proofreader L. Pilipenko