impeller


Also found in: Dictionary, Thesaurus, Wikipedia.

impeller

[im′pel·ər]
(mechanical engineering)
The rotating member of a turbine, blower, fan, axial or centrifugal pump, or mixing apparatus. Also known as rotor.

impeller

impeller
The rotating member in a pump consisting of a disk with vanes attached to it; moves liquid by accelerating the liquid radially outward.

impeller

impeller
impeller
impeller
i. A part of a gas turbine engine used in the compressor section. It consists of a forged disc with radially opposed vanes on one or both sides, forming a convergent passage in conjunction with the compressor casing.
ii. A device that imparts motion to a fluid; specifically, in a centrifugal compressor, a rotary disc that is faced on one or both sides with radial vanes and accelerates the incoming fluid outward into a diffuser. Also called an impeller wheel.
iii. A vaned disc, which picks up and accelerates the air outwardly to increase the pressure in a supercharger of a reciprocating engine.
References in periodicals archive ?
The suitable elements number of inlet, outlet, volute, impeller and suction casing of self-priming system are 504000, 696000, 720480, 478998 and 272232, respectively (Fig.
From conservation of mass, impeller outlet radial velocity ([V.sub.r2]) can be determined using Equation 11.
Impeller sand cores in furan (left) and cold hardening phenol (right)
where [k.sub.0] is the impeller inlet coefficient, taking into account the cavitation and efficiency of centrifugal pump, and [k.sub.0] takes 4.0.
The hardened impeller and suction cover materials provide maximum wear resistance for long service life.
To achieve this objective, a low-volume, high-powered, and high-speed pump with a specific impeller diameter was designed.
The resulting pressure field, combining the pressure field of guide vanes and impeller blades, is characterized by a strong modulation process as illustrated in Figure 3 [19].
In instances where there is a high level of abrasive particles but low Chloride content (hence minimal corrosive effect), the use of standard pump materials combined with a hard iron impeller and Insert Ring will prolong the expected lifetime of the pump.
Each impeller was spin tested before being mounted onto the new rotor shaft
The fan testing apparatus, shown in Figure 2, allowed for the flow rate through the impeller to be restricted and the pressure just upstream of the impeller to be measured.
Under the terms of the contract with AES Ust-Kamenogorsk HPP PLC (Kazakhstan), Power Machines OJSC is to manufacture and supply a hydro turbine impeller completed with mounting attachments.
"Our [Impeller] Model 270 is the fifth new impeller introduced this year," company CEO, Carl Forsythe, pointed out.