{"id":13756,"date":"2024-04-12T10:51:27","date_gmt":"2024-04-12T13:51:27","guid":{"rendered":"https:\/\/omel.com.br\/sopradores-caracteristicas-e-aplicacoes\/"},"modified":"2026-03-31T17:10:56","modified_gmt":"2026-03-31T20:10:56","slug":"blowers-characteristics-and-applications","status":"publish","type":"post","link":"https:\/\/omel.com.br\/en\/blog-en\/blowers\/blowers-characteristics-and-applications\/","title":{"rendered":"Blowers \u2013 Characteristics and Applications"},"content":{"rendered":"\n

What are blowers?<\/h2>\n\n\n\n

Blowers are fluid machines designed to move air or gas. The main focus of this type of equipment is flow generation, meaning the flow is established under low compression ratios.<\/p>\n\n\n\n

\"Soprador<\/figure>\n\n\n\n

Figure 1 \u2013 Roots Type Blower (OMEL)<\/p>\n\n\n\n

Types of blowers<\/h2>\n\n\n\n

Blowers can be divided into two main groups:<\/p>\n\n\n\n

Flow blowers<\/strong> \u2013 operate according to the principle of a dynamic machine, imparting acceleration to the fluid so it gains kinetic energy and subsequently converts it into pressure energy during its movement inside the casing. This energy conversion is based on Bernoulli\u2019s principle.<\/p>\n\n\n\n

Positive displacement blowers<\/strong> \u2013 also known as volumetric blowers, they move the fluid in defined volumes at each rotation. The most common type used in industry is the Lobe Positive Displacement Blower, widely known as the \u201cRoots\u201d blower.<\/p>\n\n\n\n

Lobe Positive Displacement Blowers (Roots)<\/strong><\/h2>\n\n\n\n

Roots type lobe blowers are rotary positive displacement machines that move the fluid through lobes inside the casing. The lobes do not compress the fluid (air or gas); they simply transfer it from suction, through the compression chamber, to discharge. Pressure is generated by system resistance and pressure losses.<\/p>\n\n\n\n

Operating principle and capacity<\/h2>\n\n\n\n

In Roots blowers, a shaft is coupled to a driving element (typically a motor) and a set of gears, which rotate the lobes in opposite directions. The internal clearances between lobes and casing are minimal. <\/p>\n\n\n\n

As they rotate, the lobes push the air or gas from the suction side toward the discharge, repeating the cycle continuously.<\/p>\n\n\n\n

\"Esquema<\/figure>\n\n\n\n

Figure 2 \u2013 Operating scheme of OMEL SRT trilobe Roots blower<\/p>\n\n\n\n

About the lobes<\/strong><\/strong><\/h3>\n\n\n\n

The lobes are one of the main components of a Roots blower.<\/p>\n\n\n\n

OMEL lobes are manufactured in high-strength nodular cast iron. Trilobe designs represent an evolution from bilobe configurations.<\/p>\n\n\n\n

\"Evolu\u00e7\u00e3o<\/figure>\n\n\n\n

Figure 3 \u2013 Lobe Evolution<\/p>\n\n\n\n

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\"Ilustra\u00e7\u00e3o<\/figure>\n\n\n\n

Trilobe Roots Blowers \u2013 OMEL<\/p>\n<\/div>\n\n\n\n

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Trilobe blowers provide better pressure distribution around the lobe and shaft, resulting in more balanced load distribution on bearings and seals, reducing mechanical stress and vibration while increasing service life.<\/p>\n\n\n\n

Additionally, trilobe design increases gas delivery frequency by approximately 30%, contributing to lower noise levels (around 5 dBA reduction) and more uniform airflow.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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OMEL Blower Line<\/h2>\n\n\n\n

Our blower range includes models: SRT, SR\/OF and VRT\/PA.<\/p>\n\n\n\n

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Advantages of OMEL Roots Blowers<\/h3>\n\n\n\n