| 摘要 |
To provide a thermostat housing of an internal combustion engine where the installation space is secured by integrally assembling an oil cooler or an oil filter and the operation factor of maintenance, etc is improved, a first flange F for fitting a thermostat housing 4 to an engine main body 3 and a second flange G for fitting an oil cooler 6 or an oil filter 8 are formed in such a manner as to cross each other, oil flow passages beta '' and gamma '' for supplying and taking out an oil to and from the oiler cooler 6 or the oil filter 8 are arranged to open to the flange surface F and the second flange G, and cooling water whose temperature is controlled by a thermostat 18 is allowed to flow out. <IMAGE>
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