Cooling system for internal combustion engines

Patent · Tue Jul 26 04:00:00 EDT 1988

OSTI ID:6846743

Itakura, M

A cooling system for an internal combustion engine is described comprising: a head-side water jacket and a block-side water jacket made independent of each other; and a radiator and a cooling fan shared between the two water jackets. The improvement comprises: a first cooling water conduit for connecting the outlet of the head-side water jacket and the inlet of the radiator; a mixing valve having two water inlets and one water outlet; a second cooling water conduit for connecting one of the water inlets of the mixing valve and the outlet of the radiator; a third conduit for connecting the water outlet of the block-side water jacket and the remaining one of the water inlets of the mixing valve; a water pump, a fourth conduit branched midway from the second conduit and connected with the water inlet of the head-side water jacket; an auxiliary water pump; a fifth conduit branched midway from the third conduit and connected with the first conduit; one-way valve; and a control unit for controlling the mixing ratio of the mixing valve, the displacement of the auxiliary water pump and the operation of the cooling fan.

• Assignee: Aisin Seiki Kabushiki Kaisha, Kariya
• Patent Number(s): US 4759316
• OSTI ID: 6846743
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BLOWERS
CONTROL EQUIPMENT
CONTROL SYSTEMS
COOLING SYSTEMS
DESIGN
ENERGY SYSTEMS
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
OPERATION
OXYGEN COMPOUNDS
PUMPS
SLEEVES
VALVES
WATER