Title: Method of making a piston with a gudgeon pin

Abstract: The invention relates to a piston assembly for compressor and the method of making the assembly. A piston body is molded with spaced apart downwardly open grooves formed with concave semicylindrically shaped summits and parallel side walls. The summits and sidewalls are formed with pimples. A connecting rod pin having a connecting rod attached thereto is press fitted into the grooves. The pimples may serve as weld pimples by being softened by a welding current. The pimples on the sidewalls may alternatively be mechanically swaged to press inwardly against the rod to hold it in its installed position.

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Inventors: Block, Albert (Glucksburg, DE, US)

Application Number: 857771
Filing Date: 1977-12-05
Publication_date: 1980-01-08
Assignee: Danfoss A/S (Nordborg, DK)
Primary Class(es): 29/888.05 29/513, 29/888.091, 228/136
Other Classes:
US Patent Ref:

212645	Feb, 1879	Baumann	29/509.
1296402	Mar, 1919	Kahn	29/513.
1318092	Oct, 1919	Lockwood	29/513.
1771751	Jul, 1930	Finley	403/154.
1810423	Jun, 1931	Hatch	403/154.
2362429	Nov, 1944	Blanchard	403/150.
2599082	Jun, 1952	Wells	92/260.
2752213	Jun, 1956	Swart et al.	92/260.
2944326	Jul, 1960	Stadthaus et al.	228/136.

Other Refs: 215246222561 of

Apr, 1973	DE
, 1911	GB

Primary Examiner: Crane, Daniel C.
Assistant Examiner:
Attorney: Easton; Wayne B.