Scroll-type fluid machine having the eccentric shaft inserted into the moving scroll

A scroll-type fluid machine comprising:

• a fixed scroll having a fixed scroll portion;
• a moving scroll including a moving scroll portion and a projecting portion projecting to said fixed scroll side with said moving scroll having a shaft hole at a center thereof, said moving scroll portion of said moving scroll being slidably engaged with said fixed scroll portion of said fixed scroll without rotating on an axis of said moving scroll to form at least one compression space;
• a moving scroll shaft eccentrically connected to a driving shaft of a motor, said moving scroll shaft being inserted into said shaft hole of said moving scroll;
• at least one moving scroll bearing disposed in said shaft hole for supporting said moving scroll shaft;
• and
• a discharge opening formed at a center of said fixed scroll for discharging fluid compressed in said compression space through a discharge space being in connection with said discharge opening, said discharge space being formed by a height of said projecting portion of said moving scroll which is lower than a height of said moving scroll portion of said moving scroll for discharging the fluid without being expanded again through said discharge space to achieve a high efficiency for the fluid machine.