JPS61175534U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a thermostat according to this invention installed in a thermostat housing, Fig. 2 is a schematic explanatory drawing showing an example of a cooling device, and Figs. 3 and 4 are a diagram showing a conventional thermostat. FIG. 3 is a view similar to FIG. 1, showing a state where the radiator outlet side valve is closed, and FIG. 4 is a view where the bypass side valve is closed. In the figure, 1: radiator, 2: engine, 3: cylinder, 4: water jacket, 5: water pump, 6,
20: Thermostat, 7: Thermostat housing, 8: Bypass, 9: Bypass outlet, 10
: Wax, 11: Cylinder, 12: Needle,
13: first frame, 14: first valve body, 15
: second frame, 16: compression spring, 17: second
Valve body, 21: Cooling water induction cylinder.

Claims (1)

[Scope of utility model registration request] In a cooling system for a water-cooled engine vehicle in which a bypass is provided between the cooling water passage from the water jacket outlet to the radiator inlet and the cooling water passage from the radiator outlet to the water pump inlet, wax sealed inside the cooling system is In a bottom bypass type thermostat, the bypass and the cooling water passages on the radiator outlet side are selectively opened and closed depending on the cooling water temperature using valves installed at both ends of a cylinder that reciprocates in response to changes in volume due to temperature. A thermostat equipped with a cooling water guide cylinder so that cooling water from the cylinder is guided around the cylinder.