Multi-way coolant valve and heat pump system having the same

A heat pump system comprising:

• a multi-way coolant valve comprising:
• an outer housing comprising exactly four inlets, a first outer inlet, a second outer inlet, a third outer inlet, and a fourth outer inlet, and exactly two outlets, a first outer outlet and a second outer outlet;
• an inner housing rotatably provided within the outer housing and configured to define a coolant flow path, wherein the inner housing is partitioned into two stages through which coolant flows, wherein the inner housing is configured to be operated in a plurality of modes comprising a first mode, a second mode, a third mode, and a fourth mode in which the inner housing is rotated at corresponding angles within the outer housing;
• and
• a driver connected to a rotation center of the inner housing and configured to selectively rotate the inner housing within the outer housing, wherein as the inner housing rotates by a preset interval according to a selected mode of a vehicle, the first outer inlet or the second outer inlet selectively communicates with the first outer outlet and the third outer inlet or the fourth outer inlet selectively communicates with the second outer outlet,
• wherein the inner housing comprises:
• an inner body having a cylindrical shape with an open upper and an open lower side,
• a first partition wall configured to partition the inner body into a first inner body and a second inner body along a height direction,
• a pair of second partition walls disposed in parallel at both sides of the inner body to define a first inner chamber within the first inner body,
• a third partition wall configured to divide an interior of the second inner body into second, third, and fourth inner chambers spaced apart at a first preset angle circumferentially around a second rotation center, and
• a plurality of penetration holes disposed along exterior circumferences of the first inner body and the second inner body;
• a first line having a first end connected to the first outer inlet provided in the multi-way coolant valve and a second end connected to a first radiator;
• a second line having a first end connected to the first outer outlet provided in the multi-way coolant valve and a second end connected to the first radiator, the second line being provided with a battery module and a chiller connected to an air conditioner unit;
• a third line having a first end connected to the second outer inlet provided in the multi-way coolant valve and a second end connected to the second line connecting the first radiator and the battery module;
• a fourth line having a first end connected to the third outer inlet provided in the multi-way coolant valve and a second end connected to a second radiator;
• a fifth line having a first end connected to the second outer outlet provided in the multi-way coolant valve and a second end connected to the second radiator, the fifth line being provided with an electrical component and an oil cooler;
• and
• a sixth line having a first end connected to the fourth outer inlet provided in the multi-way coolant valve and a second end connected to the fifth line, wherein a heat-exchanger included in the air conditioner unit is provided at a location where the sixth line is connected to the fifth line.