JPH02114265U

JPH02114265U -

Info

Publication number: JPH02114265U
Application number: JP2338989U
Authority: JP
Priority date: 1989-02-28
Filing date: 1989-02-28
Publication date: 1990-09-12

Description

[Brief explanation of drawings]

第１図はこの考案に係る圧力調整弁の第１実施
例であるオイルポンプ用リリーフ弁を示す第２図
の−線に沿つた断面図、第２図はこのリリー
フ弁を備えたオイルポンプ全体の正面図、第３図
はこのオイルポンプの吐出圧を従来のものと比較
して示す特性図、第４図はこの考案の第２実施例
を示す断面図、第５図はその高温時における状態
を示す断面図、第６図はこの考案の第３実施例を
示す断面図、第７図はその高温時における状態を
示す断面図、第８図はこの考案の第４実施例を示
す断面図、第９図はその高温時における状態を示
す断面図、第１０図は従来のリリーフ弁を示す断
面図である。１３……リリーフ弁、１４……バルブ収納室、
１５……流体入口、１９……外筒、２０……弁体
、２１……感温式スプリング、２３……リリーフ
孔、２５……リリーフスプリング。 Fig. 1 is a sectional view taken along the - line in Fig. 2 showing a relief valve for an oil pump which is a first embodiment of the pressure regulating valve according to this invention, and Fig. 2 shows the entire oil pump equipped with this relief valve. 3 is a characteristic diagram showing the discharge pressure of this oil pump in comparison with a conventional one, FIG. 4 is a sectional view showing the second embodiment of this invention, and FIG. 6 is a sectional view showing the third embodiment of this invention, FIG. 7 is a sectional view showing the state at high temperature, and FIG. 8 is a sectional view showing the fourth embodiment of this invention. 9 are cross-sectional views showing the state at high temperatures, and FIG. 10 is a cross-sectional view showing a conventional relief valve. 13... Relief valve, 14... Valve storage chamber,
15...Fluid inlet, 19...Outer cylinder, 20...Valve body, 21...Temperature-sensitive spring, 23...Relief hole, 25...Relief spring.

Claims

[Scope of utility model registration request]

a valve storage chamber with a fluid inlet at one end; a valve body that slidably fits into the inner periphery of the valve storage chamber and opens and closes a relief hole formed in a side wall at a predetermined valve opening pressure; A pressure regulating valve comprising: a spring that applies valve pressure to the valve body for a predetermined period; and a temperature-sensitive member that moves the opening position of the valve body relative to the relief hole in accordance with fluid temperature.