JPS63126575U - - Google Patents

Description

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

第１図は本考案の実施例を示すポンプ装置の縦
断面図、第２図は第１図の―線断面図、第３
図は従来のポンプ装置の一部断面図である。 １０…ポンプハウジング、３８…バイパス通路
、４３…流量調整弁、６０…流体補給路、７０…
嵌合穴、７１…ガイドロツド。 Fig. 1 is a vertical cross-sectional view of a pump device showing an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, and Fig.
The figure is a partial sectional view of a conventional pump device. DESCRIPTION OF SYMBOLS 10... Pump housing, 38... Bypass passage, 43... Flow rate adjustment valve, 60... Fluid supply path, 70...
Fitting hole, 71...Guide rod.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ハウジング内に弁収容孔を形成し、その弁収納
穴内に流量調整弁を嵌合させ、この流量調整弁を
摺動させて吐出ポートから吐出された圧力流体を
ほぼ一定流量に調整して吐出口より吐出するとと
もに余剰流を前記弁収容孔に開口されたバイパス
通路を介してポンプ吸入口にバイパスするように
したポンプ装置において、前記ハウジングに前記
バイパス通路に対して垂直方向にのびかつ前記バ
イパス通路に対して外方に偏心した位置において
前記バイパス通路に開口する流体補給路と、この
流体補給路と平行にのびかつ前記バイパス通路を
はさんで流体補給路と反対側において前記バイパ
ス通路に開口する嵌合穴を形成し、この嵌合孔に
前記バイパス通路を流れる流体を前記流体補給路
側に流れを偏向させるガイドロツドを嵌合したこ
とを特徴とするポンプ装置。 A valve housing hole is formed in the housing, a flow rate adjustment valve is fitted into the valve housing hole, and the flow rate adjustment valve is slid to adjust the pressure fluid discharged from the discharge port to a substantially constant flow rate, thereby forming a discharge port. In the pump device, in which the excess flow is bypassed to the pump suction port through a bypass passage opened in the valve housing hole, the housing includes a bypass passage extending in a direction perpendicular to the bypass passage and the bypass passage extending in a direction perpendicular to the bypass passage. a fluid supply path that opens into the bypass passage at a position eccentrically outward relative to the fluid supply passage; and a fluid supply passage that extends parallel to the fluid supply passage and opens into the bypass passage on the opposite side of the fluid supply passage across the bypass passage. A pump device characterized in that a fitting hole is formed, and a guide rod that deflects the fluid flowing through the bypass passage toward the fluid supply path is fitted into the fitting hole.