Novel pump body

The utility model relates to the field of machinery, in particular to a novel pump body. The novel pump body comprises a pump case, wherein the inner part of the pump case comprises a first rotor and a second rotor, both the first rotor and the second rotor can rotate, and a clamping trapping region can be formed between the first rotor and the second rotor; a suction chamber is formed on the left side of the pump case, and a discharge chamber is formed on the left side of the pump case; an oil drain groove capable of communicating the trapping region with the outer parts of the pump body and a pump cover is formed in the pump case and adopts a pore structure. The novel pump body has the benefits that only a channel, namely the oil drain groove, is formed in the pump body and the pump cover at the end surfaces of the rotors; the trapping problem is solved due to the increase of a liquid drainage channel, noises are greatly lowered, and the condition that running is not smooth cannot occur. After the oil drain groove is formed, the inner part of a pump chamber keeps a certain amount of liquid. The oil drain groove has the effects as follows: (1) during gas transmission, liquid is mixed with gas, so that gas transmission is facilitated, and the purpose of oil-gas mixed transmission is achieved; (2) the lubrication of the pump chamber is realized.