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A lubrication system for a turbine generator includes a sump having a first chamber that receives oil from the turbine generator and a second chamber from which filtered lubrication oil is supplied to the turbine generator. The chambers are interconnected by a partition wall having a flapper valve i

A lubrication system for a turbine generator includes a sump having a first chamber that receives oil from the turbine generator and a second chamber from which filtered lubrication oil is supplied to the turbine generator. The chambers are interconnected by a partition wall having a flapper valve in the wall allowing unfiltered oil to bypass the filtration loop should a malfunction occur in a pump that pumps oil through the filtration loop. The flapper valve allows unfiltered oil to travel directly from the first chamber to the second chamber and thence to be pumped through the turbine generator by one or more pumps contained within the second chamber.

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In a lubrication system for supplying lubricant to a turbine generator, the improvement comprising: a) a sump having a first chamber and a second chamber; b) a first inlet port in said first chamber receiving lubricant from said generator; c) a first outlet port in said first chamber supplying lubri

In a lubrication system for supplying lubricant to a turbine generator, the improvement comprising: a) a sump having a first chamber and a second chamber; b) a first inlet port in said first chamber receiving lubricant from said generator; c) a first outlet port in said first chamber supplying lubricant to a second inlet port in said second chamber via a filter; d) said first and second chambers being separated by a partition wall having an opening therethrough; and e) a two-way valve in said opening that senses differential pressure based upon differences in respective levels of lubricant in said first and second chambers and opens in a direction causing flow of lubricant in a direction from a chamber having a higher level of lubricant into a chamber having a lower level of lubricant. A lubrication system for supplying lubricant to a machine, comprising: a) a sump having a first chamber and a second chamber; b) a first inlet port in said first chamber receiving lubricant from said machine; c) a first outlet port in said first chamber supplying lubricant to a second inlet port in said second chamber via a filter; d) said first and second chambers being separated by a partition wall having an opening therethrough; e) a two-way valve in said opening that senses differential pressure based upon differences in respective levels of lubricant in said first and second chambers and opens in a direction causing flow of lubricant in a direction from a chamber having a higher level of lubricant into a chamber having a lower level of lubricant; f) a first pump between said first outlet port and said second inlet port; g) multiple pumps in said second chamber that pumps lubricant to said machine; and h) said first pump having a higher flow capacity than said multiple pump.