JPH0428284U

JPH0428284U -

Info

Publication number: JPH0428284U
Application number: JP6897790U
Authority: JP
Priority date: 1990-06-30
Filing date: 1990-06-30
Publication date: 1992-03-06

Description

[Brief explanation of the drawing]

第１図は、この考案の第１実施例における圧力
制御電磁スプール弁の断面正面図、第２図は、こ
の考案の第２実施例における圧力制御電磁スプー
ル弁の断面正面図、第３図は、従来の技術におけ
る圧力制御電磁スプール弁の断面正面図である。１……スプール弁部、２……リニアソレノイド
部、３……スプールハウジング、４……滑動孔、
４ａ……縮径部、５……スプール、６……蓋栓、
７……大径孔部、８……第１環状溝、９……第２
環状溝、１０……第３環状溝、１１……第４環状
溝、１２……第５環状溝、１３……第６環状溝、
１４ａ，１４ｂ，１４ｃ……ドレン通路、１５…
…出力通路、１６……供給通路、１７……先端小
径部、１８……第１ランド部、１９……環状溝部
、２０……第２ランド部、２１……後端小径部、
２２……滑動穴、２３……通孔、２４……絞り、
２５……フリーピストン、２６，２７……圧縮コ
イルばね、２８……スリーブ、４０……第１ソレ
ノイドハウジング、４０ａ……ヨーク部、４１…
…フランジ部、４２……ソレノイド、４３……円
筒状突出部、４４……第２ソレノイドハウジング
、４５……スリーブ、４６……転がり軸受、４７
……弁棒、４８……プランジヤ、４９……中空穴
、Ａ……油圧作動部、Ｐ……ポンプ、Ｔ……タン
ク。 FIG. 1 is a cross-sectional front view of a pressure control electromagnetic spool valve in a first embodiment of this invention, FIG. 2 is a cross-sectional front view of a pressure control electromagnetic spool valve in a second embodiment of this invention, and FIG. FIG. 2 is a sectional front view of a conventional pressure control electromagnetic spool valve. 1...Spool valve part, 2...Linear solenoid part, 3...Spool housing, 4...Sliding hole,
4a... Reduced diameter part, 5... Spool, 6... Lid stopper,
7...Large diameter hole portion, 8...First annular groove, 9...Second
Annular groove, 10... Third annular groove, 11... Fourth annular groove, 12... Fifth annular groove, 13... Sixth annular groove,
14a, 14b, 14c...Drain passage, 15...
...output passage, 16...supply passage, 17...tip small diameter part, 18...first land part, 19...annular groove part, 20...second land part, 21...rear end small diameter part,
22...Sliding hole, 23...Through hole, 24...Aperture,
25... Free piston, 26, 27... Compression coil spring, 28... Sleeve, 40... First solenoid housing, 40a... Yoke part, 41...
...Flange portion, 42...Solenoid, 43...Cylindrical protrusion, 44...Second solenoid housing, 45...Sleeve, 46...Rolling bearing, 47
... Valve stem, 48 ... Plunger, 49 ... Hollow hole, A ... Hydraulic operation part, P ... Pump, T ... Tank.

Claims

[Scope of utility model registration request]

The valve body has a sliding hole that communicates with the output passage, drain passage, and pressure oil supply passage, and the valve body is fitted into the sliding hole so as to be slidable in the axial direction, and corresponds to the output passage, drain passage, and pressure oil supply passage. , and a spool having a land portion formed to selectively throttle and open the output passage into a drain passage and a pressure oil supply passage depending on the axial position of the spool, and an elastic force that urges the spool in one direction. a means for urging the spool in the other direction;
A pressure control electromagnetic spool valve comprising a free piston whose protruding end side contacts a fixed portion of the valve body.