| 摘要 |
<p>A compressor is provided with two parallel compressor sections (1A, 1B). A compression space (C) is defined by an airtight space enclosed by the heads (9) of pistons (8), cylinders (7) and a head cover (3). Delivery spaces (22) communicating with one another through holes (25) surround each of the cylinders (7). An electromagnet for driving each of the pistons (7) includes two field cores (17) united integrally, and coils wound on the cores are supplied with half waves of AC current so that the directions of excitation of the two cores can be opposite to each other.</p> |
