JPS6349066U - - Google Patents

Description

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

第１図は本考案の圧力制御弁の断面図、第２図
は第１図におけるピストン弁の作動状態を示す図
、第３図はピストン弁の外観図、第４図は第３図
のＢ矢視図、第５図は従来の圧力制御弁の断面図
である。 １……ポンプ、Ａ……圧力制御弁、５……ピス
トン弁、７……スプリング。 Fig. 1 is a sectional view of the pressure control valve of the present invention, Fig. 2 is a diagram showing the operating state of the piston valve in Fig. 1, Fig. 3 is an external view of the piston valve, and Fig. 4 is B of Fig. 3. The arrow view and FIG. 5 are cross-sectional views of a conventional pressure control valve. 1...Pump, A...Pressure control valve, 5...Piston valve, 7...Spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧力制御弁のハウジングをなす弁本体に入力ポ
ート、弁室、排出ポートを設け、該弁室に頂部が
弁室の入力ポート側に設けたシート面に接合して
圧油を閉止する弁形状を有するピストン弁を摺動
自在に嵌合し、ピストン弁の他方に圧力設定用の
スプリングを作用させた圧力制御弁において、前
記入力ポート、弁室及び排出ポートを一直線上に
連設するとともに、該ピストン弁に円周上等間隔
に同形状の流通溝を両端面が開口するが前記頂部
の圧油閉止部には至らないように形成し、ピスト
ン弁に軸方向均等圧力を作用させるようにした圧
力制御弁。 An input port, a valve chamber, and a discharge port are provided in the valve body that forms the housing of the pressure control valve, and the valve shape is such that the top of the valve chamber is joined to a seat surface provided on the input port side of the valve chamber to close off the pressure oil. In the pressure control valve, the input port, the valve chamber, and the discharge port are connected in a straight line, and the input port, the valve chamber, and the discharge port are connected in a straight line, and the input port, the valve chamber, and the discharge port are connected in a straight line. Distribution grooves of the same shape are formed on the piston valve at equal intervals on the circumference so that both end faces are open but do not reach the pressure oil closing part at the top, so that equal pressure in the axial direction is applied to the piston valve. Pressure control valve.