"gas expansion, aerodynamic noise, noise suppression, pressure reduction"@en . . "Za\u0159\u00EDzen\u00ED pro redukci tlaku p\u0159i n\u00EDzk\u00E9 hlu\u010Dnosti"@cs . "Za\u0159\u00EDzen\u00ED pro redukci tlaku p\u0159i n\u00EDzk\u00E9 hlu\u010Dnosti"@cs . "2008-11-03+01:00"^^ . "[490CDEC1FD9C]" . . . "Technick\u00E9 \u0159e\u0161en\u00ED se t\u00FDk\u00E1 za\u0159\u00EDzen\u00ED pro sni\u017Eov\u00E1n\u00ED akustick\u00E9 energie p\u0159i redukci vysok\u00FDch tlakov\u00FDch sp\u00E1d\u016F plynu na po\u017Eadovanou mez. Podstatou \u0159e\u0161en\u00ED je, \u017Ee za\u0159\u00EDzen\u00ED je tvo\u0159eno alespo\u0148 5 perforovan\u00FDmi kruhov\u00FDmi deskami, um\u00EDst\u011Bn\u00FDmi s rozte\u010D\u00ED ve v\u00E1lcov\u00E9 n\u00E1dob\u011B konstantn\u00EDho pr\u016Fm\u011Bru, p\u0159i\u010Dem\u017E perforace jednotliv\u00FDch desek je r\u016Fzn\u00E1. Princip sn\u00ED\u017Een\u00ED generovan\u00E9 akustick\u00E9 energie spo\u010D\u00EDv\u00E1 ve sn\u00ED\u017Een\u00ED rychlosti proud\u011Bn\u00ED dan\u00FDm otvorem, tedy rozd\u011Blen\u00EDm celkov\u00E9ho tlakov\u00E9ho sp\u00E1du na d\u00EDl\u010D\u00ED tlakov\u00E9 sp\u00E1dy reprezentovan\u00E9 jednotliv\u00FDmi \u0161krt\u00EDc\u00EDmi org\u00E1ny, nebo-li otvory, kter\u00E9 jsou \u0159azeny do s\u00E9rie za sebou. Tlakov\u00E9 sp\u00E1dy jsou v\u017Edy voleny stejn\u011B velik\u00E9, a to tak, aby rychlost proud\u011Bn\u00ED v jednotliv\u00FDch stupn\u00EDch byla v\u00FDrazn\u011B ni\u017E\u0161\u00ED, ne\u017E kritick\u00FD tlakov\u00FD sp\u00E1d. Navr\u017Een\u00E9 \u0159e\u0161en\u00ED je v\u00FDhodn\u00E9 p\u0159edev\u0161\u00EDm z hlediska jednoduchosti v\u00FDroby a i z hlediska dispozi\u010Dn\u00EDho uspo\u0159\u00E1d\u00E1n\u00ED. Oproti jednostup\u0148ov\u00E9 redukci tlaku lze dos\u00E1hnout sn\u00ED\u017Een\u00ED akustick\u00E9 energie a\u017E o 30 dB."@cs . . "Za\u0159\u00EDzen\u00ED pro redukci tlaku p\u0159i n\u00EDzk\u00E9 hlu\u010Dnosti" . . . . . . "352658" . . . "Technick\u00E9 \u0159e\u0161en\u00ED se t\u00FDk\u00E1 za\u0159\u00EDzen\u00ED pro sni\u017Eov\u00E1n\u00ED akustick\u00E9 energie p\u0159i redukci vysok\u00FDch tlakov\u00FDch sp\u00E1d\u016F plynu na po\u017Eadovanou mez. Podstatou \u0159e\u0161en\u00ED je, \u017Ee za\u0159\u00EDzen\u00ED je tvo\u0159eno alespo\u0148 5 perforovan\u00FDmi kruhov\u00FDmi deskami, um\u00EDst\u011Bn\u00FDmi s rozte\u010D\u00ED ve v\u00E1lcov\u00E9 n\u00E1dob\u011B konstantn\u00EDho pr\u016Fm\u011Bru, p\u0159i\u010Dem\u017E perforace jednotliv\u00FDch desek je r\u016Fzn\u00E1. Princip sn\u00ED\u017Een\u00ED generovan\u00E9 akustick\u00E9 energie spo\u010D\u00EDv\u00E1 ve sn\u00ED\u017Een\u00ED rychlosti proud\u011Bn\u00ED dan\u00FDm otvorem, tedy rozd\u011Blen\u00EDm celkov\u00E9ho tlakov\u00E9ho sp\u00E1du na d\u00EDl\u010D\u00ED tlakov\u00E9 sp\u00E1dy reprezentovan\u00E9 jednotliv\u00FDmi \u0161krt\u00EDc\u00EDmi org\u00E1ny, nebo-li otvory, kter\u00E9 jsou \u0159azeny do s\u00E9rie za sebou. Tlakov\u00E9 sp\u00E1dy jsou v\u017Edy voleny stejn\u011B velik\u00E9, a to tak, aby rychlost proud\u011Bn\u00ED v jednotliv\u00FDch stupn\u00EDch byla v\u00FDrazn\u011B ni\u017E\u0161\u00ED, ne\u017E kritick\u00FD tlakov\u00FD sp\u00E1d. Navr\u017Een\u00E9 \u0159e\u0161en\u00ED je v\u00FDhodn\u00E9 p\u0159edev\u0161\u00EDm z hlediska jednoduchosti v\u00FDroby a i z hlediska dispozi\u010Dn\u00EDho uspo\u0159\u00E1d\u00E1n\u00ED. Oproti jednostup\u0148ov\u00E9 redukci tlaku lze dos\u00E1hnout sn\u00ED\u017Een\u00ED akustick\u00E9 energie a\u017E o 30 dB." . "RIV/68407700:21220/09:02154521" . "21220" . "19437" . . . "\u00DA\u0159ad pr\u016Fmyslov\u00E9ho vlastnictv\u00ED" . . "The appliance is designed to reduce sound energy during reduction of pressure gradients of gases to a required limit. The appliance comprises at least 5 perforated circular disks located in a cylindrical vessel with an identical pitch. The diameter of perforation of the disks varies. The reduction of the generated sound energy is based on the reduction of flow rate through a given hole, i.e. distribution of the total pressure gradient into partial pressure gradients represented by individual choking elements (disks with holes) placed in series. The pressure gradients are selected identical to assure that the flow rate through individual stages will be considerably lower than the critical pressure gradient. The proposed design is advantageous above all due to easy production and to its configuration. Compared with single-stage pressure reduction this system can achieve a reduction of sound energy up to 30 dB."@en . "RIV/68407700:21220/09:02154521!RIV09-MSM-21220___" . "Praha" . "Low - Noise Appliance for Pressure Reduction"@en . "2009-03-23+01:00"^^ . "Za\u0159\u00EDzen\u00ED pro redukci tlaku p\u0159i n\u00EDzk\u00E9 hlu\u010Dnosti" . "Nov\u00FD, Richard" . . "1"^^ . "Low - Noise Appliance for Pressure Reduction"@en . . . . . . . "Z(MSM6840770011)" . "1"^^ .