EP 0272229 A1 19880622 - Motor piston compressor unit.
Title (en)
Motor piston compressor unit.
Title (de)
Motor-Kolbenverdichtereinheit.
Title (fr)
Groupe motocompresseur à piston.
Publication
Application
Priority
AU 958286 A 19861219
Abstract (en)
A motor-compressor set (1) has a compressor crank case (4) containing two, opposed and rigidly connected piston heads (23 and 24). Each has a central poppet valve whose disc (33) occupies most of the area of the piston. The rim of the piston has a flexible seal (32) which does not require lubrication and seals against the piston wall during the piston's compression stroke, and allows air to flow past the piston during the aspiration close when the piston poppet valve is also open. The compressor is driven by an electric motor 2 having its stator (6) keyed to the crank-case wall and cooled by separate air flow paths provided by two fans (14, 16) leading to a common discharge orifice (15). The set has a high efficiency and is capable of providing non-polluted compressed air at pressures up to 150 p.s.i. Because it is light, it is also readily portable.
IPC 1-7
IPC 8 full level
F04B 39/16 (2006.01); F04B 27/02 (2006.01); F04B 35/04 (2006.01); F04B 39/00 (2006.01); F04B 41/00 (2006.01)
CPC (source: EP)
F04B 27/02 (2013.01); F04B 35/04 (2013.01); F04B 39/0016 (2013.01)
Citation (search report)
- WO 8303640 A1 19831027 - SCOTT & FETZER CO [US]
- DE 2821389 A1 19781130 - GRILLINI MARCO
- DE 3211318 A1 19821028 - GRENCO SPA [IT]
- US 1295529 A 19190225 - LAWHEAD JAMES W [US]
- DE 817013 C 19511015 - BAYER WILLY
- US 4190402 A 19800226 - ICKES CHARLES W [US], et al
- EP 0127585 A2 19841205 - AIREL ITALIANA [IT]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 87850245 A 19870814; JP 26194087 A 19871019