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Quantitative and qualitative development - characteristic features domestic Motor industry. In 70th years in build has entered Volga automobile The factory - giant, and the ambassador has headed motor industry Complex of factories.
In 1980 the branch will provide release of 2,1-2,2 million automobiles, in that Number 800-825 of thousand cargo. Works on increase of capacity proceed, Speeds of movement, profitability, reliability, comfortableness, Passableness of automobiles, unifications of details, to decrease(reduction) of metal consumption and Cost, labour inputs of their service.
1. 2. A filter - sediment bowl
1./purpose(/assignment) of the filter of a sediment bowl / The filter - sediment bowl is established along the line Fuel between a tank and the fuel pump also it is intended For clearing fuel of mechanical impurity.
2. The/device of the filter of a sediment bowl / The filter - sediment bowl consists of the case 1 (rice 1), which Through a lining 2 it is connected with
3 ( to the fuel pump) And 5 ( from a fuel tank) . Filter - sediment bowl it is connected to the case 1 by means of Bolt 4. In the case of the filter of a sediment bowl 1 are located: Lining of the filtering element 6, filtering element 7, the rack of filtering element 8, a spring of a sediment bowl 9. In the bottom part of the case of 1 filter of a sediment bowl The drain fuse 10 is located. Filtering element of a fuel filter - sediment bowl (fig. 1) consists of the big number of aluminium plates 12 thickness of 0,15 mm which have ledges in 14 height 0,05 mm. Therefore between plates there is a crack In the width 0,05 mm and in apertures 13 passes only Pure(clean) gasoline, and a particle of sand and a dirty is larger than 0,05 mm Are late.
Fig. 1. A fuel filter - sediment bowl: 1 - the case; 2 - a lining; 3- to the fuel pump; 4 - a bolt of a cover; 5 - from a fuel tank; 6 - a lining Filtering element; 7 - filtering element; 8- The rack of filtering element; 9 - a spring of a sediment bowl; 10 - a drain fuse; 11 - fuses; 12 - a plate Filtering element; 13 - apertures in plates; 14 - ledges in plates; 15 - apertures in plates for racks
3. A/principle of work of the filter of a sediment bowl / Fuel through 5 (rice 1) from a fuel tank Gets in the case of 1 filter - sediment bowl, up to the top filling It(him). Water and large mechanical particles settle on a bottom Cases, and fuel passes through filtering element, Consisting of the plates 12 typed on the racks 8. Filtering The element of a fuel filter - sediment bowl (fig. 1) consists from The big number of aluminium plates 12 thickness 0,15 mm, Which have ledges in 14 height of 0,05 mm. Therefore between Plates there is a crack in width of 0,05 mm and in apertures 13 Passes only pure(clean) gasoline, and particles of sand and a dirty More largly 0,05 mm are late. Further in process of filling Cases of 1 filter - sediment bowl particles of sand and a dirty Filter - sediment bowl clean. A sediment merge through an aperture, Closed by a drain fuse 10. 3.
4. The filter of thin clearing 1./purpose(/assignment) of the filter of thin clearing / The filter of thin clearing of fuel is located after Filter - sediment bowl which deletes from fuel large Mechanical impurity and the smallest particles of water, and It is intended for removal(distance) of fine firm particles. 2. The/device of the filter of thin clearing / The device of the filter of thin clearing of fuel is shown on Fig. 2. Fig. 2. The device of the filter of thin clearing of fuel with Filtering element: and - ceramic; - paper; 1 - the case of the filter; 2 - a lining of the case; 3- Plastic glass - sediment bowl; 4 - filtering element; 5 - a spring The filter of thin clearing of fuel consists of the case The filter 1 in which are executed . The case 1 It is connected to a plastic glass a sediment bowl 3. For Prevention of outflow of fuel between the case 1 and The glass - sediment bowl 3 locates a lining of the case 2. Inside a glass - sediment bowl 3 it is located filtering Element 4, a spring 5. Filtering element can be ceramic (rice 2, ) Or paper (fig. 2, ).
3. A/principle of work of the filter of thin clearing fuel / Fuel through from a fuel tank (passing Through a filter - sediment bowl where fuel is cleared of particles of water And large mechanical particles) gets in plastic Glass - sediment bowl 3, up to the top filling in it(him). Filtering The element 4 represents a curtain from a special paper, Placed in the cardboard cylinder. Fuel passes through a curtain In an internal cavity of an element, it is cleared, and filtered Impurity are besieged on an external surface of a curtain. Filtering elements clear fuel of particles In the size 2-3 .
5. MAINTENANCE SERVICE And OPERATING REPAIR of the power supply SYSTEM the ENGINE
1. The/power supply system of the carburettor engine. Refusals and Malfunctions of the power supply system of the carburettor engine / Refusals and malfunctions of the power supply system of the carburettor engine can To depend on the carburettor, the fuel pump, a filter - sediment bowl, Fuel tank, and the air filter. Up to 10 % of refusals and Malfunctions of the engine falls to his(its) power supply system. Malfunctions of the carburettor are expressed in infringement of his(its) adjustment, Formation(education) or a gas mixture that does(makes) Start-up of the engine inconvenient, as and in that and other case combustible The mix loses ability to be ignited. External attributes a gas mixture are overheating and Faults in work of the engine, "shots" in the muffler and occurrence of a dark smoke. As attribute the gas mixture is served with flashes in inlet The pipeline owing to slow burning a mix, falling of capacity, Overheating of the engine, the overexpenditure of fuel (on 5-10 %) and formation(education) Grey - yellow strike on the bottom part of isolators ignitions. The reasons of malfunctions of the carburettor can be change of a level of fuel In to the chamber, change of through passage section of jets owing to Contaminations or deteriorations, a contamination of air channels of the carburettor, Malfunction , air, leaky The fuel valve the mechanism to a saddle (can on 10-20 % To raise(increase) the charge of fuel), a contamination , filters and Fuel tank and hit in them waters, reduction or the termination(discontinuance) Submissions of fuel, . . Refusal. Malfunctions of the fuel pump are characterized by reduction Productivity, pressure and created underpressure, and refusal - full Cessation of work of the pump. The reasons of malfunctions and refusals of the fuel pump can be: o air through connections between The pump and tank or through a pith lining of a sediment bowl, o break the fuel pump, o breakage or easing of elasticity of springs of valves fuel The pump or bad them owing to or
Hits of a dirty etc. Malfunctions of the filter and fuel tank are caused by their contamination Deposits of mechanical impurity, waters, and -infringement Tightness, a contamination and formation(education) in winter time ice . 1./diagnosing the general(common) technical condition of system A feed(meal) carburettor (and diesel) engines / Diagnosing of the general(common) technical condition of the power supply system Carburettor (and diesel) engines make a method road or Bench tests of the automobile. At road tests the charge of fuel is defined(determined) by a flowmeter, Included between the carburettor and the fuel pump, at movement The automobile with constant speed. For test choose a route appropriate to conditions of operation The given automobile. The automobile before test should pass THAT in Volume That. Besides it is desirable to define(determine) the automobile. It is defined(determined) on road with an equal surface at movement of the automobile with Rated load on inertia from speed of 50 kms / ? up to full Stops. Size depending on mark of a lorry Changes from 300 up to 600 m, buses - from 550 up to 750 m and automobile Automobiles - from 300 up to 600 m. If the size is insufficient, it is necessary to check up adjustment Brakes, bearings and pressure of air in trunks and to result them in The condition appropriate to the normative data. The control charge of fuel define(determine) for lorries at Constant speed of 30-40 kms / ? and for automobile - from 40 up to 80 kms / ?. For definition of the charge of fuel use also portable devices: o a flowmeter of model To - 427 (), o a tachometric flowmeter, the MOUTH - 1, o flowmeter -8910 () o flowmeter -71. The device To - 427 consists of the gauge/1/and recording device/2/ ( fig. 3). The gauge of a flowmeter is connected between the carburettor and fuel The pump. The principle of action of the device is based that fuel, passing Through the gauge, rotates the rotor established inside with two , Which at rotation interrupts a ray of light falling from electric Bulbs (taking place also//the gauge) on photoresistance. A feed(meal) of a bulb is made by a direct current a pressure(voltage) 12 In. In Result light pulses which are transferred, in accounting are formed The device of the registrar who is giving out the indications in volumetric units. Error of measurement of 2,5 %. The principle of action of flowmeter -8910 is based on measurement of difference Pressure upon a site of a highway before and after calibrated Aperture - throttle. An error of measurement of 3 %. Fig. 3. A flowmeter of model To - 427 Diagnosing of the power supply system on the stand racing drums (fig. 4) Excludes inconveniences of a method of road tests. The automobile Establish on the stand so that driving wheels leaned(based) on Racing drums. Drums of the stand will incorporate to the brake device, Absorbing the energy brought from the engine to wheels. At working The engine include transmission and driving wheels of the automobile rotate Racing drums. Before gauging of the charge of fuel preliminary warm up the engine and Transmission of the automobile during 15 mines at speed of 40 kms / ? on a straight line To transfer and at full opening a throttle, for what with the help Hydraulic brake create loading, simulating the specified conditions Movements of the automobile. After that check work of the fuel pump The device of design of model 527 (fig. 5) on developed by him(it) Pressure and tightness of the valve of the fuel chamber of the carburettor. Fig. 4. The circuit of the stand racing drums: 1 - account fuel vessels;/2-/the index of temperature of water;/3-/ The index of loading; 4 - a tachometer; 5 - measured devices:/6-/the crane, 7- Fuel pumps/8-/fuel tanks; 9 - the storage battery;/10 -/;/11-/the gauge of a tachometer; 12 - the brake device; /13 - / raising reducer;/14-/the gauge of loading a brake;/15-/ Racing drums;/16-/ temperatures of water The device consists of the manometrical head 7, /2/for fastening The device on the engine, hoses 5, the crane/4/and a set of unions /5./The device joins unions the carburettor and a tube going to To it(him) from the pump. Gauging of pressure make at small frequency of rotation Cranked shaft of the engine at open the crane. Results
