Hermetic type scroll compressor with regulation of lubricant to the inlet

A hermetic scroll compressor for circulating a fluid, comprising:

• a hermetic container having an internal frame dividing the interior of said container into upper and lower chambers;
• an inlet port and an outlet port formed in said container to communicate with said upper chamber;
• a scroll arrangement comprising a fixed scroll and an orbiting scroll disposed in said upper chamber, said scroll arrangement having an inlet side communicating with said inlet port and a discharge side communicating with a discharge portion of said upper chamber disposed above said scroll arrangement, said outlet port communicating with said discharge portion of said chamber;
• a drive shaft for moving said orbiting scroll so that said scroll arrangement circulates fluid from said inlet side to said discharge portion;
• feeding means for feeding lubricant into the fluid at said inlet side of said scroll arrangement to maintain a seal between said fixed and orbiting scrolls, said feeding means including a conduit communicating with a source of lubricant and with said inlet side;
• and
• control means for regulating the flow of lubricant to said inlet side as a function of the magnitude of pressure at said discharge side of said scroll arrangement, said control means including a valve disposed below said inlet side for opening and closing said conduit, a control member operably connected to said valve and slidably movable within a recess formed above said inlet side, said recess being in communication with said discharge side of said scroll arrangement, a yieldable biasing means for biasing said control member upwardly toward a valve opening state, and a connecting rod interconnecting said control member and said valve extending across said inlet side.