Ōsaka, Japan
Ōsaka, Japan

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Global vacuum ejectors market is projected to grow at a CAGR of 3.7%, during 2016-2021, on the back of increasing semiconductor applications in consumer electronics industry, expansion in oil and refining and petrochemical sector and emerging applications of vacuum ejectors in pharmaceutical industry. A vacuum ejector is a mechanical device used to pump gases and vapors from a system to create vacuum. It works on venture-principle by converting pressure energy in a fluid/jet stream into velocity energy. Growing semiconductor industry coupled with increasing adoption of vacuum ejectors in refining and process industries, especially chemicals, is fueling growth in global vacuum ejectors market. Consumer electronics is the largest end user industry for vacuum ejectors globally, where it is utilized in semiconductor applications, especially for clamping, alignment, surface mounting and lifting. In addition, vacuum ejectors find application in industrial and process industry, refining and food and packaging industry, etc. Single stage vacuum ejectors are the most widely used type across the globe owing their large scale application in oil & gas, packaging, chemical and petrochemicals industries. Asia-Pacific is the largest market for vacuum ejectors, globally, followed by North America and Europe. SMC Corporation, Gardener Denver Inc., J. Schmalz GmbH, GEA Group, Mazda Limited are few of the largest players operating in the global vacuum ejectors market. Osaka Vacuum, Ltd., AB Progetti, Jet Vacuum Systems Pvt. Ltd., Körting Hannover AG, etc., are few other players that offer vacuum ejectors. Global Vacuum Ejectors Market report elaborates following aspects related to vacuum ejectors market globally: For more information about this report visit http://www.researchandmarkets.com/research/g4dgsh/global_vacuum To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/global-vacuum-ejectors-single-stage-vacuum-ejectors-and-multi-stage-vacuum-ejectors-market-competition-forecast-and-opportunities-2021---research-and-markets-300454242.html


Provided is a radial direction controller capable of handling changes in negative bearing stiffness according to the mounting orientation. This radial direction controller, which is a magnetic bearing device that lifts and supports a rotating body by electromagnets, is equipped with: a radial control circuit for controlling displacement of the axis of the rotating body in the radial direction; a negative bearing stiffness elimination circuit that is connected in parallel with the radial control circuit and outputs a signal about the negative bearing stiffness; converters that output current values for controlling the electromagnets, based on the output signals from these circuits; filters that extract the DC component from the current values; computing units that compute correction coefficients based on the extracted DC components and the bias current of the electromagnets; and multiplication units that multiply the computed correction coefficients with the signal output from the negative bearing stiffness elimination circuit.


Patent
Osaka Vacuum Ltd. | Date: 2015-07-15

A molecular pump (1A) includes a pump body (2) provided with a turbo molecular pump portion (2a), a control unit (4) provided with a control portion and a power supply portion, and a cooling unit (3) for cooling the pump body (2) and the control unit (4). A first temperature detecting portion (90) is provided in a first position, which is a position inside the control unit (4) and has a low temperature. A second temperature detecting portion (80) also serving as a humidity detecting portion is provided in a second position, which is a position inside the control unit (4) and has a high temperature. The control portion controls the operation of the cooling unit (3) in accordance with a relative humidity in the first position, calculated based on temperature information detected by the first temperature detecting portion (90) and based on temperature information and humidity information detected by the second temperature detecting portion (80) also serving as a humidity detecting portion.


Provided is a radial direction controller capable of handling changes in negative bearing stiffness according to the mounting orientation. This radial direction controller (10A), which is a magnetic bearing device (1) that lifts and supports a rotating body (2) by electromagnets (4a, 5a), is equipped with: a radial control circuit (11) for controlling displacement of the axis (Ax) of the rotating body (2) in the radial direction; a negative bearing stiffness elimination circuit (12) that is connected in parallel with the radial control circuit (11) and outputs a signal pertaining to the negative bearing stiffness; converters (61, 62, 63, 64) that output current values for controlling the electromagnets (4a, 5a), based on the output signals from these circuits (11, 12) ; filters (76, 77, 78, 79) that extract the DC component from the current values; computing units (81, 82, 83, 84) that compute correction coefficients (C) based on the extracted DC components and the bias current (10) of the electromagnets (4a, 5a); and multiplication units (55, 56, 57, 58) that multiply the computed correction coefficients (C) with the signal output from the negative bearing stiffness elimination circuit (12).


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Trademark
Osaka Vacuum Ltd. | Date: 2011-06-24

Vacuum pumps.


Trademark
Osaka Vacuum Ltd. | Date: 2012-03-20

Vacuum pumps (machines).


Trademark
Osaka Vacuum Ltd. | Date: 2012-03-20

Vacuum pumps (machines).


Trademark
Osaka Vacuum Ltd. | Date: 2012-03-20

Vacuum pumps (machines).


Trademark
Osaka Vacuum Ltd. | Date: 2012-05-08

Vacuum pumps (machines).


Patent
Osaka Vacuum Ltd. | Date: 2013-08-27

A molecular pump includes a pump body provided with a turbo molecular pump portion, a control unit provided with a control portion and a power supply portion, and a cooling unit for cooling the pump body and the control unit. A first temperature detecting portion is provided in a first position, which is a position inside the control unit and has a low temperature. A second temperature detecting portion also serving as a humidity detecting portion is provided in a second position, which is a position inside the control unit and has a high temperature. The control portion controls the operation of the cooling unit in accordance with a relative humidity in the first position, calculated based on temperature information detected by the first temperature detecting portion and based on temperature information and humidity information detected by the second temperature detecting portion also serving as a humidity detecting portion.

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