EP 1240429 A1 20020918 - MULTI-PISTON ENGINE, SUCH AS A PUMP OR COMPRESSOR, WITH IMPROVED VIBRATIONAL BEHAVIOUR
Title (en)
MULTI-PISTON ENGINE, SUCH AS A PUMP OR COMPRESSOR, WITH IMPROVED VIBRATIONAL BEHAVIOUR
Title (de)
MEHRZYLINDERMASCHINE, WIE EINE PUMPE ODER EIN KOMPRESSOR, MIT VERBESSERTEN SCHWINGUNGSEIGENSCHAFTEN
Title (fr)
POMPE A PISTONS MULTIPLES ET A COMPORTEMENT VIBRATOIRE AMELIORE
Publication
Application
Priority
- FR 0003456 W 20001208
- FR 9915969 A 19991217
Abstract (en)
[origin: US6814548B2] The invention relates to a piston engine which is essentially comprised of an engine shaft and a set of modules, each of which comprises a cylinder and a piston powered by the engine shaft in the cylinder, each module resulting in vibratory excitation of the engine at a determined fundamental frequency. Rather than introducing phase differences between the various vibratory excitations, as is the case in prior art, the invention introduces a frequency offset between the fundamental frequencies thereof in order to avoid a high-amplitude vibration at a common excitation frequency, arising from the spectral spread thus obtained.
IPC 1-7
IPC 8 full level
F04B 1/04 (2006.01); F04B 1/047 (2006.01); F04B 1/053 (2006.01); F04B 11/00 (2006.01); F04B 27/04 (2006.01); F04B 39/00 (2006.01); F04B 53/14 (2006.01)
CPC (source: EP US)
F04B 11/005 (2013.01 - EP US); F04B 11/0091 (2013.01 - EP US); F04B 39/0055 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0144659 A1 20010621; AT E307289 T1 20051115; DE 60023346 D1 20060302; DE 60023346 T2 20060706; EP 1240429 A1 20020918; EP 1240429 B1 20051019; FR 2802577 A1 20010622; FR 2802577 B1 20020308; JP 2003517534 A 20030527; US 2003059314 A1 20030327; US 6814548 B2 20041109
DOCDB simple family (application)
FR 0003456 W 20001208; AT 00993434 T 20001208; DE 60023346 T 20001208; EP 00993434 A 20001208; FR 9915969 A 19991217; JP 2001545723 A 20001208; US 14958802 A 20021003