Tokyo Roki Co., Ltd.

Nikki Co., Ltd.

Takatsugu Kurosawa

Kosaku Ishida

Masashi Iwasaki

Kazuo Tanaka

Tadashi Ichikawa

Tomoaki Fukuoka

Takayuki Idehara

Koji Kawayoko

Takaya Kohara

Yoshinori Maehira

Yoshitaka Nakamura

Yoshitaka Watanabe

Masaya Wada

Kazuki Shirakura

Yuta Endo

Jun Takashima

Yuka Yorita

Takayuki Hoshi

An oil separator includes a plurality of separation discs rotatable together with a spindle and layered in an axis direction of the spindle, a nozzle that protrudes from a lower circumferential face of the spindle and configured to rotate the spindle by injection of an oil, a lower case has a gas inflow part into which blow-by gas flows, an oil discharge part into which an oil after separation is discharged, an upper case that sections together with the lower case a housing chamber in which spindle, separation discs and nozzle are housed, and a sectioning member that sections the housing chamber into a primary separation chamber, configured to primarily separate the oil mist, and a secondary separation chamber that secondarily separates the oil mist included in the gas after primary separation, and forms between the nozzle and the separation discs a communication opening that guides the gas being treated.

Oil separator

A purpose of the present invention is to improve the oil removal rate in an oil separator that separates and removes oil from gas including the oil as an impurity. The oil separator according to the present invention is characterized by including a first filter member () in a cylindrical shape made with a cylindrical filter material having an air permeability, and positioned such that the target gas flows in from a hollow part as well as a central axis is in an up-down direction, and a second filter member () made with a filter material having air permeability and wrapped around the first filter member () along an outer surface thereof with a predetermined spacing from the outer surface of the first filter member ().

[Problem to be Solved] To enhance the performance for separation of oil mist from blow-by gas. [Solution] A filter elementwhich is to be attached to an oil separator unitincludes a core. This core is a double tube having an internal cylindrical memberand an external cylindrical member, and a space between the internal cylindrical member and the external cylindrical member is used as a separation chamber. An injection holefor injecting blow-by gas while increasing its flow velocity is provided in the internal cylindrical member. A surface which is an inner wall surface of the external cylindrical member and which faces the injection hole is a spraying surface onto which the blow-by gas injected from the injection hole is sprayed. Moreover, an opening for oil discharge from which oil OL condensed on the spraying surface is discharged, and an opening for discharge from which the blow-by gas from which oil mist has been separated is discharged are provided in the core.

Oil mist separator

There is provided a filter device for gas including: a cylindrical filter case formed to be airtight; a hollow filter which is formed with an opening in a bottom part thereof, a top part of which is obstructed, and which is placed inside the filter case in such a manner that a central axis thereof substantially aligns with a central axis of the filter case; and a flow controlling plate which is attached roundly between an outlet in the top part of the filter case and the top part of the hollow filter on an inner peripheral wall of the filter case, wherein gas introduced through an inlet in a bottom part of the filter case is introduced into a hollow part of the hollow filter, and also passes through a space between an outer periphery of the hollow filter and the inner peripheral wall of the filter case, and then is discharged through the outlet.

Filter device for gas

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Yokohama, Japan

Takatsugu Kurosawa