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|1. (WO2017033543) ENGINE COOLING DEVICE|
|Applicants:||MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
|Title:||ENGINE COOLING DEVICE|
This engine cooling device includes: a circulation passage through which cooling water which is discharged from the outlet of a water jacket formed at a cylinder block is circulated to the inlet of the water jacket; a mechanically driven water pump that circulates the cooling water through the circulation passage; a thermostat that is provided in the circulation passage to circulate and block cooling water from a radiator; and a thermostat housing accommodating the thermostat. The thermostat housing includes: an inlet part serving as an inlet for the cooling water; an outlet part coupled to the inlet of the water jacket and serving as an outlet for the cooling water; a through-pump passage that guides the cooling water at the inlet part to the outlet part via the water pump; a short-cut passage that is formed separately from the through-pump passage and inside the thermostat housing, and connects the outlet part with the inlet part; and a flow passage switching valve that switches the connection state between the outlet part and the inlet part by the short-cut passage.