Hydraulically balanced vane cell pump
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United States of America Patent
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Aug 18, 1998
Grant Date -
N/A
app pub date -
Jan 13, 1997
filing date -
Jan 11, 1996
priority date (Note) -
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Abstract
The invention relates to a vane cell pump with a control plate (8) and an end plate (6), between which a pump package (1) is located. The control plate (8) and the end plate (6) have suction and compression chambers (12, 12A and 13, 13A, respectively) opposite one another. While the control plate (8) controls the inflow and outflow of oil, the end plate (6) has a function of guiding the oil. According to the invention, the control edges (15, 15A, 16, 16A, 17, 17A, 18, 18A) on the end plate (6) are recessed relative to the control edges of the control plate (8). This provision enables more-economical manufacture.
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