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4-3-blok-cilindrov.html
4.3. Block of cylinders
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Fig. 2.6. Details of the block of cylinders and krivoshipno-shatunny mechanism of the SR20DE engine:
1 — a cover of a chain of a drive of the mechanism of a gazoraspredeleniye; 2 — an arm of fastening of the generator;
3 — the water pump; 4 — the block of cylinders; 5 — the holder of a back cuff of a cranked shaft; 6 — persistent half rings; 7 — a flywheel; 8 — a back cover; 9 — a cranked shaft; 10 — the loose leaf of the radical bearing; 11 — a cover of the radical bearing; 12 — a bed of radical bearings of a cranked shaft;
13, 14 — the maslootrazhatelny screen; 15 — an aluminum case; 16 — a maslouspokoitelny guard;
17 — a steel stamped case; 18 — a stopper of a drain opening; 19 — a cover; 20 — a rod and a rod cover; 21 — loose leaves of the bottom head of a rod; 22 — lock rings; 23 — a piston finger; 24 — the plug of the top head of a rod; 25 — the piston; 26 — piston rings; 27 — a maslopriyemnik with the filter of the oil pump; 28 — a sealing ring
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Fig. 2.7. Measurement of height of the block of cylinders
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Fig. 2.5. Details of the block of cylinders and krivoshipno-shatunny mechanism of GA14DE and GA16DE engines: I\with a mechanical transmission; II\with an automatic transmission;
1 — the block of cylinders; 2 — the holder of a back cuff of a cranked shaft; 3 — a drain stopper of cooling liquid of the block of cylinders; 4 — an arm; 5 — loose leaves of radical bearings of a cranked shaft; 6 — persistent half rings of a cranked shaft; 7 — a cranked shaft; 8 — covers of radical bearings of a cranked shaft; 9 — the plug of a drive of the oil pump; 10 — an asterisk of a cranked shaft;
11 — segment shponka; 12 — a cover of the bottom head of a rod;
13 — shatunny loose leaves; 14 — a rod; 15 — lock rings;
16 — a piston finger; 17 — the piston; 18 — a maslosjemny ring; 19 — the bottom kompressionny ring; 20 — the top kompressionny ring; 21 — a back cuff of a cranked shaft; 22 — a back cover; 23 — a flywheel; 24 — the bottom cover; 25 — a back cover; 26 — a conducted disk
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The block of cylinders pig-iron, is cast for a single whole with cylinders (fig. 2.5 and 2.6). Cylinders on diameter are divided into three dimensional groups (tab. 2.1). The nominal height of the block of cylinders of GA engines makes And = 213,95 — 214,05 mm (fig. 2.7).
Table 2.1 Dimensional groups of cylinders
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Diameter of the piston, mm
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Engine model
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GA14DE
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GA16DE
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SR20DE
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1-dimensional group
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73,60-73,61
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76,00-76,01
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86,00-86,01
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2nd dimensional group
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73,61-73,62
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76,01-76,02
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86,01-86,02
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3rd dimensional group
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73,62-73,63
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76,02-76,03
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86,02-86,03
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In the SR20DE engine the cast bed of radical bearings providing additional rigidity of the block of cylinders, and more difficult design of the oil pallet consisting of aluminum and steel cases and a maslootrazhatel are applied.
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Fig. 2.8. Marking of dimensional groups of diameters of cylinders on the block of GF14DE and GA16DE engines: 1 — numbers of dimensional groups of diameters of cylinders; 2 — numbers of dimensional groups (categories of the sizes) loose leaves of bearings of a cranked shaft; 3 — number of dimensional group of diameter of the cylinder No. 1; 4 — number of dimensional group (category of the size) bearing No. 1 loose leaves
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Marking of dimensional groups of diameter of cylinders is put on the block of cylinders (fig. 2.8 and 2.9)
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Fig. 2.9. Marking of group of diameter of cylinders on a surface of the block of cylinders of the SR20DE engine
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