EP 0633831 A1 19950118 - PNEUMATIC MIXER AND CONVEYOR.
Title (en)
PNEUMATIC MIXER AND CONVEYOR.
Title (de)
MISCH- UND DRUCKLUFTFÖRDERGERÄT.
Title (fr)
TRANSPORTEUR ET MELANGEUR PNEUMATIQUE.
Publication
Application
Priority
- DE 4211139 A 19920403
- EP 9300764 W 19930330
Abstract (en)
[origin: WO9319914A1] A pneumatic mixer and conveyor, in particular for mixing and conveying mortar or concrete, comprises a mixing tank (18) which can be filled with the material to be mixed and conveyed, is connected to a conveyor pipe (12), contains a motor-driven agitator (14) and to which compressed air may be applied. It also comprises a driving motor (20) and a screw-type compressor (32) that can be driven by the driving motor for generating compressed air. The agitaor may be driven by means of a hydraulic motor (30) to which pressure oil may be supplied by at least one hydraulic pump (24, 26) driven by the driving motor (20). The screw-type compressor (32) is arranged in a lubricating and cooling oil circuit that contains an oil/air reservoir (34) with an air separator (36) and oil sump (38). In order to obtain a light-weight design which is easy to mount and to service, the hydraulic circuit of the agitator drive and the lubricating and cooling oil circuit of the screw-type conveyor (32) have a common oil tank, formed by the oil sump (38) of the oil/air reservoir, as well as a common oil cooler (50) and oil filter (52).
IPC 1-7
IPC 8 full level
CPC (source: EP)
B28C 5/085 (2013.01); B28C 5/123 (2013.01)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9319914 A1 19931014; AT E142553 T1 19960915; DE 4211139 A1 19931007; DE 59303765 D1 19961017; EP 0633831 A1 19950118; EP 0633831 B1 19960911
DOCDB simple family (application)
EP 9300764 W 19930330; AT 93907853 T 19930330; DE 4211139 A 19920403; DE 59303765 T 19930330; EP 93907853 A 19930330