Motors: expansible chamber type – Constantly open throttled exhaust with controlled motive...
Patent
1979-07-05
1981-08-04
Maslousky, Paul E.
Motors: expansible chamber type
Constantly open throttled exhaust with controlled motive...
91173, 91459, 92 24, 92 95, 92100, F01B 720, F01B 1900, F16J 302, F15B 13044
Patent
active
042815860
ABSTRACT:
A pneumatically actuated adjusting device, particularly for throttle flap adjustment on mixture-compressing combustion engines, with a diaphragm held between a housing upper portion and a housing lower portion. This diaphragm forms a vacuum-charged working chamber with the housing upper portion. With the housing lower portion it forms a chamber open to ambient atmosphere. A guide bushing projects from the housing upper portion on the atmosphere vented side of the diaphragm and is rigidly connected to it. The diaphragm is also rigidly connected to two concentric spaced diaphragm plate pairs. The outer diaphragm plate pair is connected to a pipe moving inside the guide bushing. This pipe has one or several recesses, with a ball in every recess. Indentations in the guide bushing have diameters corresponding to the ball diameter, with the depth determining the stroke of the first adjustment stage. The inner diaphragm is rigidly connected to a control piston inside the pipe. This control piston has a recess. After moving the ball into recess, the stroke of the pipe is lengthened. The pipe may project outwardly through the guide bushing from the housing and is loaded by a compression spring in a direction opposite to the applied vacuum pressure.
REFERENCES:
patent: 2015374 (1935-09-01), Baker
patent: 2163982 (1939-06-01), Mercier
patent: 2361206 (1944-10-01), Hoppe
patent: 2465714 (1949-07-01), Elliott
patent: 2585837 (1952-02-01), Randol
patent: 3437014 (1969-04-01), Deibel et al.
patent: 4111099 (1978-09-01), Fischer
patent: 4181065 (1980-01-01), Benjamin
Frohberg Gunther
Kuhlen Ernst
Maslousky Paul E.
Pierburg GmbH & Co. KG
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