Internal-combustion engines – Multiple cylinder – Cylinders in-line
Patent
1982-08-24
1983-12-06
Hershkovitz, Abraham
Internal-combustion engines
Multiple cylinder
Cylinders in-line
92 31, 92 71, F02B 7526
Patent
active
044186568
ABSTRACT:
A rotory motion transformer (10) is disclosed which has a cylindrical housing (12) and a rotatable shaft (36). A cam (14) having ascending and descending segments (22-28) forming lobes (30, 32) is included in the housing and axially aligned with the shaft. Equal angular pistons (42-48) are spaced about the shaft (36) and are keyed therewith while remaining axially slidable thereto. The pistons (42-48) have helicoid faces on the surfaces facing the cam (14), the helicoid faces on the pistons mating with the ascending segments of the cam (14). Spring means (52-58) are provided to bias the pistons against the cam (14). When the pistons (42-48) rotate over the cam surface the space between each piston and the cam increases and decreases in volume periodically for each rotation. Intake port means (15, 16) adjacent the lobes (30, 32) provide fluid flow into the rotary transformer (10). Exhaust port means (17, 18) provide for removing fluid from the rotary transformer (10). The spaces between pistons (42-48) and cam (14) are regularly opened and closed to the intake ports (15, 16) and exhaust ports (17, 18) to transfer fluid and accomplish the desired pump air motor action.
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