PROBLEM TO BE SOLVED: To provide a vehicular brake fluid pressure control device configured so that a suction valve is opened and closed according to operation of an intermediate piston to be interposed between a suction valve and a reservoir piston, which facilitates mounting of the suction valve and the intermediate piston on a body.SOLUTION: A housing mounting hole 39 having coaxially a large diameter press-in hole part 39 and a small diameter press-in hole part 39b is provided in a body 30; a housing 43, which has a suction valve 28A built therein and with which is slidably engaged with an intermediate piston 57, has a large diameter press-in tube part 44a that is pressed into the large diameter press-in hole part 39a and a small diameter press-in tube part 44b that is pressed into the small diameter press-in hole part 39b, and is formed in a cylindrical shape with a step; an annular chamber 61 communicating with a suction side of a fluid pressure pump 23A is formed between the housing 43 and the body 30, between the large diameter press-in hole part 39a and the small diameter press-in hole part 39b; and a communication hole 62 that communicates the suction chamber 25 in the housing 43 with the annular chamber 61 is provided in the housing 43.SELECTED DRAWING: Figure 4
【課題】サクション弁が、サクション弁およびリザーバピストン間に介装される中間ピストンの作動に応じて開閉されるようにした車両用ブレーキ液圧制御装置において、サクション弁および中間ピストン等のボディへの組付けを容易とする。【解決手段】ボディ30に、大径圧入孔部39aおよび小径圧入孔部39bを同軸に有するハウジング取付け孔39が設けられ、サクション弁28Aを内蔵するとともに中間ピストン57を摺動自在に嵌合させるハウジング43が、大径圧入孔部39aに圧入される大径圧入筒部44aならびに小径圧入孔部39bに圧入される小径圧入筒部44bを有して段付きの円筒状に形成され、大径圧入孔部39aおよび小径圧入孔部39b間でハウジング43およびボディ30間に、液圧ポンプ23Aの吸入側に連通する環状室61が形成され、ハウジング43内の吸入室25および環状室61間を結ぶ連通孔62がハウジング43に設けられる。【選択図】 図4
VEHICULAR BRAKE FLUID PRESSURE CONTROL DEVICE
車両用ブレーキ液圧制御装置
11.07.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |