Leaked fuel gas return-flow structure for engine
An engine and gas technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of reduced engine lubrication performance, increased engine size, easy occurrence of sand sintering, etc., to achieve improved sealing performance, improved lubrication performance, The effect of preventing sand sintering
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[0050] The embodiments of the present invention will be described in detail below with reference to the drawings.
[0051] figure 1 with 2 The first embodiment is shown. in figure 1 with 2 Among them, 2 is the engine; 4 is the cylinder block; 6 is the cylinder head; 8 is the crankshaft; 10 is the connecting rod; 12 is the piston; 14 is the camshaft; 16 is the combustion chamber; 18 is the air inlet; 20 is the air outlet; 22 is the crankcase; 24 is the oil tank; 26 is the cylinder front cover; 28 is the intake manifold; 30 is the intake passage; 32 is the throttle valve; 34 is the air outlet manifold; 36 is the air cleaner.
[0052] The cylinder head 6 is fastened on the top surface of the cylinder block 4 by a plurality of first and second cylinder head mounting bolts 40-1 and 40-2 via a cylinder head gasket 38. These bolts 40-1 and 40-2 pass through the first and second cylinder head side bolt holes 42-1 and 42-2 in the cylinder head 6 and then pass through the cylinder head m...
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