Patent ID: 6244385
Filing Date: 2001-06-12
Classification: F16H

Abstract:
A lubrication pressure controller comprising:a tank, which stores hydraulic oil;a pump, which sucks the hydraulic oil from said tank and discharges the hydraulic oil;a lubrication oil passage, which leads the hydraulic oil discharged from said pump to lubricated parts;a lubrication pressure regulating valve, which adjusts pressure of the hydraulic oil being supplied into said lubrication oil passage;a first discharge oil passage, which returns the hydraulic oil discharged in pressure adjustment performed by said lubrication pressure regulating valve to said tank;an oil cooler, which is provided in series with said lubrication pressure regulating valve at one point en route in said first discharge oil passage and cools the hydraulic oil returning to said tank;a cooler pressure regulating valve, provided between said lubrication pressure regulating valve in said first discharge oil passage and said oil cooler and which adjusts pressure of the hydraulic oil exhausted from said lubrication pressure regulating valve and supplied to said oil cooler and then said oil tank; anda second discharge oil passage, which returns the hydraulic oil discharged in pressure adjustment performed by said cooler pressure regulating valve into a suction oil passage located between said tank and said pump.