Novel four -way reversing valve

The utility model provides a novel four -way reversing valve. Including four interfaces of ABCD, inside is provided with horizontal separators, two parts about divideing into the inner space, and separate A interface and B interface through vertical septum in the top space, horizontal separators the left side symmetry be equipped with M, the A interface is answered to two pore pairs of N, the right symmetry is equipped with X, the B interface is answered to two pore pairs of Y, four -way reversing valve is last be provided with about two pistons, horizontal separators below be provided with vertical flow distribution plate, divide into M hole and X hole a set of, N hole and Y hole are another group, the positive and negative both sides of flow distribution plate bottom respectively be provided with a set of baffle, the baffle be the L shape, a set of not grade positive D interface of positive C interface that blocks, another group blocks back D interface and does not keep off back C interface. The utility mod