Compressor having injection function

A compressor having an injection function, the injection function including:

• suctioning a low-pressure working fluid;
• injecting an intermediate pressure working fluid into a compression chamber in a process of compressing the low-pressure working fluid;
• and discharging a high-pressure working fluid, the compressor comprising:
• the compression chamber including a compression chamber partitioning member;
• an intermediate pressure chamber guiding the intermediate pressure working fluid before the injection to the compression chamber,
• wherein the intermediate pressure chamber and the compression chamber face each other with the compression chamber partitioning member interposed between the intermediate pressure chamber and the compression chamber,
• the intermediate pressure chamber includes:
• an intermediate pressure chamber inlet through which the intermediate pressure working fluid flows in;
• an injection port inlet of an injection port through which the intermediate pressure working fluid is injected into the compression chamber;
• and
• a liquid reservoir formed at a position below the intermediate pressure chamber inlet,
• the liquid reservoir including the compression chamber partitioning member,
• the compressor further comprising:
• a check valve preventing backflow of the intermediate pressure working fluid from the compression chamber to the intermediate pressure chamber provided in the injection port;
• the intermediate pressure chamber including the compression chamber partitioning member and an intermediate pressure chamber partitioning member;
• and
• the check valve installed on a boundary surface between the intermediate pressure chamber partitioning member and the compression chamber partitioning member.