Title:
フィルタ装置
Document Type and Number:
Japanese Patent JP2004511731
Kind Code:
A
Abstract:
A filter device includes at least one filter unit ( 10 ), connectable to a hydraulic circuit ( 14 ), with at least one supply line ( 16 ), one discharge line ( 18 ), and at least one cooling unit ( 22 ). The cooling unit is connected to a secondary branch line ( 20 ), is connected to the hydraulic unit ( 14 ) parallel to the supply line ( 16 ), and is supplied with a hydraulic medium by a switching device ( 24 ) once a predetermined temperature threshold value of the hydraulic medium to be cooled is attained. A permanent supply ( 36 ) for the cooling unit ( 22 ) is provided in the direction of flow of the hydraulic medium in the supply line ( 18 ) before the switching device ( 24 ). This permanent supply ( 36 ), connected in parallel to the switching device ( 24 ), flows into the secondary branch line ( 20 ) to control the volume flow in reverse flow according to the fluid temperature. A partial flow of the hydraulic medium in the supply line directly reaches the cooling unit at low or reduced temperatures, at which the switching device has not yet been actuated to ensure that the cooling unit is permanently supplied with the hydraulic medium.
Inventors:
Birkendorf, Berner
Application Number:
JP2002534710A
Publication Date:
April 15, 2004
Filing Date:
October 06, 2001
Export Citation:
Assignee:
High Duck Filter Tehnik Gesell Shaft Mitt Beschlenktel Haftung
International Classes:
B01D35/02; B01D35/147; F15B21/041; F15B21/0423; F01M11/03; (IPC1-7): F15B21/04; B01D35/02
Attorney, Agent or Firm:
Takashi Ishida
Jun Tsuruta
Kumi Imaeda
Masaya Nishiyama
Higuchi Souji
Jun Tsuruta
Kumi Imaeda
Masaya Nishiyama
Higuchi Souji