Method and apparatus for measuring engine compression ratio, clearance volume and related cylinder parameters
Patent
·
OSTI ID:6838228
A method is described of quantifying leakage from a cylinder of an internal combustion engine having a piston disposed to reciprocate within the cylinder and a crankshaft rotatably coupled to the piston, the method comprising the steps of: (a) monitoring rotation of the crankshaft, (b) monitoring pressure within the cylinder while the crankshaft is rotating and the piston is reciprocating within the cylinder, (c) identifying displacement volumes of the piston within the cylinder as a function of rotation of the crankshaft, and (d) quantifying leakage from the cylinder as a function of monitored pressure and identified displacement volumes.
- Assignee:
- Jodon Engineering Associates, Inc., Ann Arbor, MI
- Patent Number(s):
- US 4633707
- OSTI ID:
- 6838228
- Country of Publication:
- United States
- Language:
- English
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