Pneumatic beater

Details Pneumatic beater Pneumatic beater

1997-12-18

1999-04-13

Lopez, F. Daniel

Motors: expansible chamber type

With motive fluid valve

For exhausting contracting working chamber to expanding...

91268, 91272, F15B 13042

Patent

active

058933174

ABSTRACT:
Pneumatic beater, the beating piston (18) of which is conducted in a movable fashion inside a housing (2) and can be pre-stressed on one side of the piston (18) by means of a pressurizing space (40) against the restoring force of a pressure spring (26) which is provided in a spring space (28) on the other side of the piston (18) inside the housing (2), and in which the connecting channel (42) for the compressed air from the pressurizing space (40) into the spring space (28), which channel can be freed by means of an automatic, quick-acting ventilation valve (48), is conducted directly through the piston (18). Inside the spring space, the channel (42) is extended by means of a pipe (34) which contains the valve arrangement (48). In a first form of implementation, the pipe (34) is solidly affixed to the housing and extends into a bore (30) in the piston, which is conducted over the pipe (34) in a sliding fashion. From the channel (42), the transfer air goes directly out through openings (46) in the wall of the pipe (34) which are freed by the valve arrangement (48) directly into the spring space (28). The direct flow path through the piston makes possible a largely loss-free transfer of air from one cylinder space into the other, which makes possible a more effective impact from the beater.

REFERENCES:
patent: 3853037 (1974-12-01), Denzler et al.
patent: 3917233 (1975-11-01), Blower
patent: 4996907 (1991-03-01), Kroger
patent: 5070769 (1991-12-01), Fehr
patent: 5183121 (1993-02-01), Koudelka

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