Oiling device and abnormality detection method of the same
AssigneeKobelco Compressors Corporation
InventorsJumpei Oga, Toshiyuki Miyatake, Iori Yoneda
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Abstract
An oiling device includes a passage system that circulates and feeds oil to an oiling object. A control unit includes a storage unit that has stored therein a first abnormality pressure set value that differs according to oiling temperature; the first abnormality pressure set value is set to a lower pressure as the oiling temperature is higher. The control unit executes an abnormal stop of the oiling object when an oiling pressure detected by an oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to an oiling temperature detected by an oiling temperature detecting unit.
Claims13
An oiling device comprising:
- a passage system that circulates and feeds oil to an oiling object;
- an oiling pressure detecting unit that detects an oiling pressure that is a pressure of the oil fed to the oiling object through the passage system;
- an oiling temperature detecting unit that detects an oiling temperature that is a temperature of the oil fed to the oiling object through the passage system;
- and
- a control unit that executes an abnormal stop of the oiling object, wherein
- the control unit includes a storage unit that has stored therein a first abnormality pressure set value that is predetermined and varies according to the oiling temperature such that the first abnormality pressure set value decreases as the oiling temperature increases, and
- the control unit executes the abnormal stop of the oiling object when the oiling pressure detected by the oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to the oiling temperature detected by the oiling temperature detecting unit.
An oiling device comprising:
- a passage system that circulates and feeds oil to an oiling object driven;
- an oiling pressure detecting unit that detects an oiling pressure that is a pressure of the oil fed to the oiling object through the passage system;
- an oiling temperature detecting unit that detects an oiling temperature that is a temperature of the oil fed to the oiling object through the passage system;
- and
- a control unit, wherein
- the control unit includes a storage unit that has stored therein a first abnormality pressure set value that is predetermined and varies according to the oiling temperature such that the first abnormality pressure set value decreases as the oiling temperature increases, and
- when the oiling pressure detected by the oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to the oiling temperature detected by the oiling temperature detecting unit, the control unit considers that there is an abnormality in an oiling state and outputs a signal.
An abnormality detection method of an oiling device, comprising:
- detecting an oiling pressure that is a pressure of oil fed from the oiling device to an oiling object driven;
- detecting an oiling temperature that is a temperature of the oil fed to the oiling object;
- and
- determining that there is occurrence of an abnormality in an oiling state when the oiling pressure falls below an abnormality pressure set value that varies according to the oiling temperature such that the abnormality pressure set value decreases as the oiling temperature increases.
Dependencies are inferred from the claim text.