SU1495473A1 - Ic-engine - Google Patents

Abstract

This invention relates to the automatic regulation of internal combustion engines. The purpose of the invention is to increase the efficiency of the engine at idle and low loads. Each additional valve box 15 is equipped with intake and exhaust valves. In decompressors (D) 5, made in the form of connections, valves and rods are installed. The connecting tube of the combustion chamber 25 of each of the disconnected cylinders 2 is connected to the intake manifold 4 through a flap and is designed as an ejector 21. The passive nozzle of the ejector is connected to the collector 4, the diffuser is connected to the connecting nozzle, and the active nozzle 19 through one of the additional boxes 15 connected to one of the D 5. The latter is installed in the chamber 25 of the combustion of the non-switchable cylinder. The valve timing phases of each pair of cylinders connected to each other through an ejector 21 are shifted by 180 ° in the angle of rotation of the crankshaft. Valve stem D 5 and valve connecting pipe of cylinders of one pair are kinematically connected. As a result of this implementation, the fuel consumption at low and medium speeds is reduced and the engine power is increased due to the pressurization of air into the non-switchable cylinders. In addition, it is easier to start the engine during operation D, which reduces the capacity of the battery for starter operation. Oil leakage through the piston group is prevented during long-term operation with the cylinders disconnected, which prevents shunting of spark plugs and reduces oil consumption. 13 il.

Description

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The L1P111body body chamber of the 25 combustion chamber every) of the open; 1 sylated or 1) 2 is connected to the inlet port; 1: 1) 4) through the damper and is designed as an ejector 2i. Passive sleep The ejector is associated with KO.I-. leKTOpoM 4, the diffuser is connected to the connector: 1 nozzle and active sleep. 19 through one of the additional boxes 15 is connected to one of the D 5. The copper box is installed in the combustion chamber 25 of the non-switchable cylinder. The gas distribution phases of each pair of cylinders connected to each other through an ejector 21 are shifted by 180 but the angle of rotation of the crankshaft. Itok, k.tanana D 5 and the basement of the connecting cable of the cylinders of one pair

connected between (battle). As a result of this airflow, the fuel consumption is reduced at low and medium speeds and the engine power increases due to the air iia being lowered and medium speeds and the engine power is increased due to the air pressure B. the cylinders are not disconnected. engine start during operation D, which reduces the battery capacity for starter operation. 1 prevents oil knobs through the normal grinder during long work with open cylinders, which excludes shunt crankshaft whose ignition and reduces oil consumption. 13 yl.

The invention relates to the control governor; 1 kg km1. burnout

and, eh, invention rioiibiuieHiie eksmy

michioeti on |) idle idle l;) yes n ma-.YYH loads.

Pa () 1P. I shows the scheme of l.wigage.t internal combustion; in fig. 2 - de- Komiipeccop in a shriek but ..: 1zheppi; on (|) 3k / kikisha decompressor box in the process of forcing air into the intake manifold; in fig. 4 - the same, in the papo process. of the opening of the pumped out port (from the inlet manifold 1 azamn from the intake manifold during the work stroke in the disconnected center; in fig. 5 - the same with the ball inlet and outlet valves; Mopiyusp Nf n the clock) asymptops Gr engine depending on the frequency vrap1, e-1P1Y, where the curve and characterizes the effective single circuit with all workers chi. pshdrah, curve and characterizes the effective monyoet nr all workers) n1.nh cylinders, krnva b --- effective power of the dapny engine with two disconnected cylinders, crnva and - effective power of the known engine with two disconnected cylinders, curve c - fuel consumption of lime 1101Ч a) engine and the curve d - at the dap engine with two switched off cy.tindramn; on fng. 7-9 - arrangement of intake manifold, lecturer d1I1gatel in three projections; pas figs. 10 is a diagram of the installation of the valve in the intake manifold; pa fi1. 1 1 - scheme of connection of the valve with t ha mn; in fig. 12 is a circuit of a compressor decompressor with a throttled valve; on phpg. 13 --- order of operation of the cylinders of the dvngatel and camshaft timing.

Engine 1 consists of a Hiarynno-norshnevy rpvHHbi, crankshaft shaft and a cylinder block 2, the head of which is installed25

20 block 3 with gas distribution bodies. Yun and Mr. BiiycKiHjiM count. 1 sector 4.

In the combustion chambers of the disconnected nipples, the arrester decompressors 5 are installed. In addition, the engine intake manifold has an ivionKii {per connectors;) 1x branch pipes; yuchaemyh11lindrov. The dampers do not access the fuel-air circuit into the engine cylinders and connect them to the atmosphere through an additional pipe 7. Pi i4arn 8 unshadowed curtain shutter

30 and 9 are associated with the accelerator pedal and. synchro deflection from the backside of the carburetor. Lower end K) lever ;; H.Provisions of zap.kopkami and | 1i and its extreme last-minute (et.kvkn zarriggy) go. Southeastern 11 valve 12 Dec 11 | | essor.

Nozzle 13 decompressor right. moan

ara.mirovanny rezinotkanev) 1 m a hose 14 to the clan box 15 a decompressor. In the boxed box of ustachs, - | е1; s two, ie, non-stackable k.chapans. The inlet K / ianan 16 connects the inlet 13 of the decompressor with the high pressure Ko. by lecturer

40

Clanan 17 in (} and |) time of the cycle “zhgpsl- connects the disconnected cylinder with nef.irKucj-readable cylinder (ohm (-p. Fig. 3 decree; b o, i-kami), in which the data is given. p.mspk fr the same time as the “suction. k.lanach 17” goes through :; hose 18, active sound 9. installed in the di (|) (}) narrow part. 20 e: .4 (Vector 21, made on the connecting pipelines of the vacuum pipe 1 of the collector 11 eotk. 1K) of tea of my own section, is associated with the decompressor 5.

K. A box can be open: a, not both e-flaped, or with ui; ip; i-tion valves (cfinr. 5) ii; ui with traditional disc-shaped valves.

During the opening, the anana 22 carburetor, us1K) c, 1pp1 1y pa f. Flange 23, is connected through the inlet 24 n to the ejector with the chamber 25 oh a11i.

The engine is running as follows.

At the revolutions of the medium vyit (in Fig. 6 above 3500 rpm) the engine operates in the usual way. The intake manifold flaps are open, the carburetor air-fuel mixture enters all cylinders, and the additional pipes 7 connecting the manifold with the atmosphere are hermetically closed. The decompressors in the cylinders to be shut off (in the second and third) are turned off, their gas distribution organs are closed.

At low, idle and medium speeds (up to 3500 rpm.) The accelerator pedal is in the initial position (idle speed) or pressed at half its maximum stroke. At the same time, the decompressor valves are open, and the valves 6 in the connecting pipes of the cylinders to be shut off isolate them from the carburetor and connect the cylinders to the atmosphere through an additional pipe 7. Then in the second and third cylinders (Fig. 13) during the stroke "suction enters clean air. After closing the valve in the switchable cylinder, clean air is compressed. When the pressure in it increases, air flows through the decompressors into the valve box. Here, the valve 16 is tightly closed with air flow, and the valve 17 is opened and the pressurized air flows out with great speed through the active nozzle 19 of the ejector 21. The moment of air compression in the third cylinder of the engine coincides with the suction of the fuel-air mixture in the first cylinder, compression in the second cylinder is the same as suction in the fourth cylinder. Therefore, the decompressor of the third cylinder is connected by a hose with an ejector of the first cylinder, and the decompressor of the second cylinder is connected with an ejector of the fourth cylinder (Fig. 9).

The compressed air supplied from the active nozzle allows an increase in the weight charge in the combustion chamber of the non-shut-off cylinder. The ejector works as a supercharger, it allows to increase the air pressure in the manifold of the non-shut-off cylinder, since double volume of air is supplied to the ejector (one piston suction volume of the operating cylinder, and the second is supplied by the cylinder turned off through the decompressor). Thus, with the same fuel consumption, the power of the two working cylinders increases due to the injection of air into them.

During the working stroke, a vacuum would occur in the disconnected cylinder, since all the air in the compression process is forced through the passive nozzle into the ejector. But this does not occur, since when a slight vacuum develops in the combustion chamber of the disconnected cylinder, the valve 17 is closed (with exhausted air), and the valve 16 is opened and in

a measure of combustion from the exhaust manifold sucks in the hot exhaust gases of the cylinders. At the same time, the resistance of downward movement of the piston decreases (exhaust gases 5 have an overpressure of 0.3-0.6 atm) and the temperature of the non-shut off cylinders is kept in the range of 40-60 ° C. This prevents overcooling of non-switchable cylinders when they are turned off and allows them to immediately start operation at optimum temperatures at the moment they are put into operation.

Thus, the power of two cylinders (with disconnection of the first two and third 5 cylinders) is not half of the engine power, but more (Fig. 6) due to the increase in pressure of the fuel-vacuum mixture in the working cylinders at the time of the suction stroke, as well as an increase in pressure in the disconnected cylinders due to the increased pressure during the stroke "working stroke in the disconnected cylinders. The stroke of the valves of the connecting pipes and carburetor valves is synchronized. When the engine is running on two 5-cylinder cylinders, the stroke of the carburetor flaps is made smaller than when working on four cylinders. In addition, the accelerator pedal travel range when the damper 6 moves from the position "closed connect, 1 branch pipe in position" the additional branch pipe 7 is closed is made minimal (equal to 1-2 °), which is achieved by the ratio of the arms leverage and Z accelerator pedals with levers 8 flaps.

5 Air is supplied to the additional ports 7 through the air filter.

The use of the proposed engine allows you to reduce fuel consumption at low and medium speeds and to increase engine power due to the pressurization of air into the non-shut off cylinders. In addition, it is easier to start the engine during operation of the decompressor (the resistance of engine cranking decreases sharply), which reduces the capacity of the battery.

5 batteries for starter operation. Oil leakage through the piston group is prevented during long-term operation with the cylinders off, which prevents the ignition of spark plugs and reduces the oil consumption.

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Claims (1)

The formula isopreteni.ch The engine is 1b of internal concoction | 1a1111, containing an open air, (yuchaemye according to the fuel-air mixture and non-mailable cylinder lines, the kama () whose combustion is provided with each organ gazorustra Zana with inlet 0 a manifold, and with the aid of a gas outlet nozzle with an exhaust manifold, and the gas exchange phases of which are displaced in the rotation angle of the crankshaft, at least one valve installed in the intake manifold to stop the mixture being supplied to switchable qi. and kinematically connected with the help of an accelerator pedal, which is characterized by the fact that, in order to increase efficiency on idling and low loads, the engine is equipped with additional valve boxes with inlet and outlet valves and decompressors installed in each branch pipes with valves and rods installed in them, connecting chamber tube the combustion of each of the cylinders to be shut off is connected to the intake manifold through a flap and is in the form of an ejector, the passive nozzle of which is connected to the intake manifold, the diffuser is connected to the connecting pipe, and the active sonlo is connected to one of the decompressors and the latter is installed in the combustion chamber of the detachable qi; 1indra. moreover, the valve timing phases of each pair of interconnected cylinders are shifted through the ejector by 180 ° but the rotation angle of the crankshaft and the valve of the decompressor valve and the valve of the connecting pipe of the cylinders of one pair are kinematically connected to each other. f.z 1000 that 2600 jrOO 4 200 5000 5800 FIG. 30 / ip. ,, 0/77 / (p. 7 B-1 . eight /five CPU2.9 3o / fp. FIG. YU / rs five X L FIG. P / 2 FIG. 12 r 3- -2f360 °) chi. i3