Scroll apparatus with reduced inlet pressure drop

A scroll type fluid machine, comprising:

• (a) a first rotary shaft;
• (b) a second rotary shaft having a second rotation axis eccentric to a first rotation axis of said first rotary shaft;
• (c) a first scroll which is provided with a first base and a first spiral member erected on a front surface of said first base and which is rotatable around said first rotation axis;
• (d) a second scroll which is provided with a second base and a second spiral member erected on a front scroll surface of said second base and which is rotatable around said second rotation axis;
• (e) means for moving one said scroll with respect to the other scroll;
• (f) a body housing having an internal space for housing therein said first scroll and said second scroll;
• (g) a suction port open into said internal space in said body casing for allowing fluid into said space, said space being in fluid communication with a compression volume formed between said first spiral member and said second spiral member;
• and
• (h) said first scroll being provided with a suction bore perforating through said first base from a rear surface thereof to the front surface, open at an outer peripheral portion of said front surface, allowing fluid communication between said internal space of said body casing and a suction side of said compression volume.