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Title:
OIL CHANGER
Document Type and Number:
Japanese Patent JP2674735
Kind Code:
B2
Abstract:

PURPOSE: To measure oil flow highly accurately while preventing erroneus measurement which is caused by air mixed into oil, by disposing in the particu lar parts of pipelines a flow meter for measuring the oil flow and air sensors for detecting air mixed into the oil.
CONSTITUTION: Pipelines 5, 9, and 10 provided with at least an oil pump 12 and opening/closing valves 8a and 8b, and a first oil reservoir 3 and a second oil reservoir 4 are disposed. While used oil in an oil-using part is recovered into the second oil reservoir 4 unused oil in the first oil reservoir 3 is supplied to the oil-using part. In the particular parts of the pipelines 5, 9, and 10 a flow meter 11 for measuring oil flow and air sensors 6a and 6b for detecting air in the oil are disposed. Flow signals from the flow meter 11 are input to a control part, and normally they are counted. However, in case a specific signal is input, counting is inhibited.


Inventors:
Tetsuya Tsunoda
Application Number:
JP15469594A
Publication Date:
November 12, 1997
Filing Date:
July 06, 1994
Export Citation:
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Assignee:
Yamada Corporation
International Classes:
F01M11/04; G01F1/74; B67D7/04; G01F15/06; G01F23/74; (IPC1-7): B67D5/04
Domestic Patent References:
JP642327A
JP520719Y2
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)