JPH0434485U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案実施例のポンプ吐出圧制御装
置１０の構成図を示す。第２図は、第１図におけ
るフイルタ手段１９の拡大断面図を示す。第３図
は、他の実施例のフイルタ手段１９の拡大断面図
を示す。第４図は、他の実施例のフイルタ手段１
９の拡大断面図を示す。第５図は、他の実施例の
フイルタ手段１９の拡大断面図を示す。 １０……ポンプ吐出圧制御装置、１１……オイ
ルポンプ、１２……入口通路（入口）、１３……
出口通路（出口）、１４……バイパス弁、１４ｂ
……背圧室、１５……制御通路、１７……ソレノ
イド弁、１８……分岐通路、１９……フイルタ手
段、２０……網状部材、２１……カツプ状部材、
２２……スチールウール、２３……箱状部材、２
４……樹脂部材。 FIG. 1 shows a configuration diagram of a pump discharge pressure control device 10 according to an embodiment of the present invention. FIG. 2 shows an enlarged sectional view of the filter means 19 in FIG. FIG. 3 shows an enlarged sectional view of the filter means 19 of another embodiment. FIG. 4 shows the filter means 1 of another embodiment.
9 is shown. FIG. 5 shows an enlarged sectional view of the filter means 19 of another embodiment. 10... Pump discharge pressure control device, 11... Oil pump, 12... Inlet passage (inlet), 13...
Outlet passage (outlet), 14...Bypass valve, 14b
... Back pressure chamber, 15 ... Control passage, 17 ... Solenoid valve, 18 ... Branch passage, 19 ... Filter means, 20 ... Net-like member, 21 ... Cup-shaped member,
22... Steel wool, 23... Box-shaped member, 2
4...Resin member.

Claims (1)

【実用新案登録請求の範囲】 (1) 入口と出口とを有するオイルポンプと、該
入口と出口とをバイパス制御するバイパス弁と、
該バイパス弁の作動を制御するソレノイド弁と、
前記出口と該ソレノイド弁とを連通する制御通路
と、該制御通路を前記バイパス弁背圧室に連通さ
せる分岐通路とを有するポンプ吐出圧制御装置に
おいて、 前記制御通路の前記分岐通路上流部にフイルタ
手段を固設し、該フイルタ手段は貫通孔を有する
カツプ状部材に網状部材を組み合わせて形成され
ることを特徴とするポンプ吐出圧制御装置。 (2) 実用新案登録請求の範囲第１項におけるフ
イルタ手段を、貫通孔を有する箱状部材内部にス
チールウールを封入して形成したことを特徴とす
るポンプ吐出圧制御装置。 (3) 実用新案登録請求の範囲第１項におけるフ
イルタ手段を、網状部材を一体成形され貫通孔を
有する樹脂部材にて形成し、該樹脂部材の外周径
と前記制御通路の前記分岐通路上流部の内周径と
のクリアランスを前記網状部材の網の目よりも小
さくしたことを特徴とするポンプ吐出圧制御装置
。[Claims for Utility Model Registration] (1) An oil pump having an inlet and an outlet, a bypass valve that bypass-controls the inlet and the outlet,
a solenoid valve that controls the operation of the bypass valve;
A pump discharge pressure control device having a control passage that communicates the outlet with the solenoid valve, and a branch passage that communicates the control passage with the bypass valve back pressure chamber, further comprising a filter at an upstream portion of the branch passage of the control passage. 1. A pump discharge pressure control device, wherein means is fixedly installed, and the filter means is formed by combining a cup-like member having a through hole with a net-like member. (2) A pump discharge pressure control device characterized in that the filter means according to claim 1 of the utility model registration is formed by sealing steel wool inside a box-shaped member having a through hole. (3) Utility model registration The filter means according to claim 1 is formed of a resin member having a through hole integrally molded with a net-like member, and the outer circumferential diameter of the resin member and the upstream portion of the branch passage of the control passage are A pump discharge pressure control device characterized in that a clearance with an inner circumferential diameter of the mesh member is smaller than a mesh size of the mesh member.