Patent ID: 7186099

Claim:
A scroll machine comprising: a shell including a sidewall portion and a first end cap and a second end cap disposed at first and second ends of said sidewall portion, respectively; a partition plate disposed in said shell for defining a discharge chamber between said partition plate and said first end cap and an intake chamber between said partition plate and said second end cap; a first scroll member disposed within said shell, said first scroll member having a port and a first spiral wrap; a second scroll member disposed within said shell and having a second spiral wrap, said first and second spiral wraps being mutually intermeshed; a crankshaft drivingly attached to one of said first and second scroll members, said crankshaft including a lubrication passage extending therethrough; a motor drivingly connected to said crankshaft for causing said one of said first and second scroll members to orbit with respect to the other of said scroll members, whereby upon orbiting of said one of said first and second scroll members said first and second spiral wraps define a gas inlet to at least one subsequently enclosed space of progressively changing volume between a peripheral zone defined by said scroll members and said port; and an oil injection fitting extending through said shell and communicating with said lubrication passage in said crankshaft, wherein under normal operating conditions said shell is positioned so that said first end cap is positioned vertically lower than said second end cap and said partition plate forms at least part of an oil sump within said intake chamber of said shell.