Method and apparatus for determining cylinder liner projection
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United States of America Patent
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-
Feb 8, 1983
Grant Date -
N/A
app pub date -
Feb 17, 1981
filing date -
Feb 17, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of determining the projection of the upper end (15) of a cylinder liner (14) above the top surface (13) of a cylinder block structure (10). The cylinder liner (14) is caused to be fully inserted into the cylinder bore (11) by a press ring (32) acting on the upper end of the cylinder liner concurrently with the measurement of its position. The press ring is resiliently forced against the top surface (37) of the cylinder liner by a plurality of pressure springs (35) and a pressure plate (25). The pressure plate is urged into engagement with the cylinder block structure top surface (13) by a holddown bar (26). The measuring system utilizes a gage indicator (20) having a probe which is selectively engaged with the upper surface of the cylinder liner adjacent positions of force transfer between the press ring and cylinder liner. The probe is caused to determine the position of the cylinder block structure upper surface (13) selectively directly or indirectly. In effecting a direct determination, the probe is inserted through a zeroing hole in the pressure plate to determine the disposition of the lower surface of the pressure plate. In the direct method, the probe is brought into direct engagement with the cylinder block structure upper surface (13) as through recesses in the periphery of the pressure plate.
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