Base of IC engine
An internal combustion engine and oil technology, which is applied in the direction of engine lubrication, mechanical equipment, engine components, etc., can solve the problems of low connection rigidity, reduced connection rigidity, and reduced rigidity of the base 104, and achieves the effect of improving rigidity and shortening size.
Inactive Publication Date: 2006-08-30
SUZUKI MOTOR CORP
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Problems solved by technology
[0016] As a result, the side wall 110 of the main oil passage 116 and the auxiliary oil passage 114, that is, the connection rigidity to the second side wall 110-2 on the exhaust side is low, and the rigidity of the base 104 may decrease.
[0017] Moreover, when the auxiliary machine installation boss 128 is formed on the outside of the main oil passage 116 and the auxiliary oil passage 114, the auxiliary machine installation boss 128 protrudes from the exhaust side second side wall 110-2 and rests on the base. Dimensions in the width direction of 104 (refer to Figure 5 L1) is increased in size, and the rigidity of connection with the above-mentioned side wall 110 of the auxiliary machine mounting boss 128, that is, the second side wall 110-2 on the exhaust side is reduced.
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[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0032] Figure 1-Figure 4 An embodiment of the invention is shown. exist figure 1 Among them, 2 is a cylinder block of an internal combustion engine not shown, and 4 is a base.
[0033] A base 4 is fixed to the lower surface 2f of the cylinder block 2 of the internal combustion engine.
[0034] like Figure 1-Figure 4 As shown, the base 4 includes: a plurality of bearing caps 6 mounted on the lower surface 2f of the above-mentioned cylinder block 2 and rotatably supporting a crankshaft (not shown); wall 10 ; an oil filter 12 installed on the outside of the side wall 10 ; an auxiliary oil passage 14 extending along the axial direction of the crankshaft and supplying oil to the oil filter 12 ; The main oil passage 16 supplies the oil that has passed through the oil filter 12 to each part of the lubricated part of the internal combustion engine....
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This lower block for an internal combustion engine is provided with a plurality of bearing caps attached on a lower surface of a cylinder block and rotatably supporting a crankshaft, the sidewall communicating with the bearing cap and constituting a part of a crank case, an oil filter attached on an outer surface of the sidewall, the sub oil gallery extending along the axial direction of the crankshaft in order to supply oil to the oil filter, and a main oil gallery arranged in parallel with the sub oil gallery in order to supply the oil passing through the oil filter to respective parts of the internal combustion engine. The sub oil gallery and the main oil gallery are vertically overlapped with each other and arranged along an inner surface of the sidewall.
Description
technical field [0001] The present invention relates to a base of an internal combustion engine, in particular to a base of an internal combustion engine capable of shortening the lateral dimension of the base and enhancing the rigidity of the side wall by using auxiliary oil passages. Background technique [0002] The oil in the oil pan of the internal combustion engine first passes through the oil filter and is pumped by the oil pump; then from the oil pump through the auxiliary oil passage formed on the base, it is pressed to the oil filter; and then from the oil filter The oil cooler is supplied through the oil filter bracket; after passing through the oil cooler, it reaches the main oil passage formed on the base, and supplies oil from the main oil passage to the lubricated parts of the internal combustion engine. [0003] [Patent Document 1]: Japanese Patent Laid-Open No. 6-346716 (page 1, figure 1 ); [0004] [Patent Document 2]: Japanese Patent Laid-Open No. 8-1354...
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IPC IPC(8): F01M11/03F01M1/06F02F7/00
Inventor 青木干典
Owner SUZUKI MOTOR CORP