JPS55109710A - Hydraulic valve lifting apparatus - Google Patents

Hydraulic valve lifting apparatus

Info

Publication number
JPS55109710A
JPS55109710A JP1753879A JP1753879A JPS55109710A JP S55109710 A JPS55109710 A JP S55109710A JP 1753879 A JP1753879 A JP 1753879A JP 1753879 A JP1753879 A JP 1753879A JP S55109710 A JPS55109710 A JP S55109710A
Authority
JP
Japan
Prior art keywords
valve
oil
plunger
chamber
intake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1753879A
Other languages
Japanese (ja)
Other versions
JPS618253B2 (en
Inventor
Toru Kosuda
Masaaki Takizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Soken Inc
Original Assignee
Nippon Soken Inc
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc, Toyota Motor Corp filed Critical Nippon Soken Inc
Priority to JP1753879A priority Critical patent/JPS55109710A/en
Publication of JPS55109710A publication Critical patent/JPS55109710A/en
Publication of JPS618253B2 publication Critical patent/JPS618253B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To lower the impact force acted when an intake valve or an exhaust valve comes into contact with its valve seat, by forming an oil storing brake chamber in a valve lifting means for varying the valve lift of intake valve or exhaust valve of an internal combustion engine.
CONSTITUTION: A lifter body 5 and a plunger 6 coupled with each other are fitted in a cylinder bore 8 in the housing 3 of a valve lifting means. In the plunger 6 and lifter body 5, there are formed respectively an oil supply chamber 14 and a hydraulic chamber 26, to which oil in an oil pan 41 is supplied via a pump 42 and an oil-pressure controlling means 43 for controlling the valve lift of intake or exhaust valve 25. Between the plunger 6 and bore 8, there is formed a brake chamber 10 which is communicated to an outside via check valve 36, so that a damping effect is afforeded to the plunger 6. Further, on the outside of the bore 8, there is formed an oil discharging port 32 having a check valve 30 and an on-off valve 40, so as to control the amount of oil in the chamber 26.
COPYRIGHT: (C)1980,JPO&Japio
JP1753879A 1979-02-16 1979-02-16 Hydraulic valve lifting apparatus Granted JPS55109710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1753879A JPS55109710A (en) 1979-02-16 1979-02-16 Hydraulic valve lifting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1753879A JPS55109710A (en) 1979-02-16 1979-02-16 Hydraulic valve lifting apparatus

Publications (2)

Publication Number Publication Date
JPS55109710A true JPS55109710A (en) 1980-08-23
JPS618253B2 JPS618253B2 (en) 1986-03-13

Family

ID=11946687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1753879A Granted JPS55109710A (en) 1979-02-16 1979-02-16 Hydraulic valve lifting apparatus

Country Status (1)

Country Link
JP (1) JPS55109710A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058753Y2 (en) * 1988-06-06 1993-03-04
JPH02110923U (en) * 1989-02-20 1990-09-05

Also Published As

Publication number Publication date
JPS618253B2 (en) 1986-03-13

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