JPS55123308A - Reciprocating engine - Google Patents

Reciprocating engine

Info

Publication number
JPS55123308A
JPS55123308A JP2820279A JP2820279A JPS55123308A JP S55123308 A JPS55123308 A JP S55123308A JP 2820279 A JP2820279 A JP 2820279A JP 2820279 A JP2820279 A JP 2820279A JP S55123308 A JPS55123308 A JP S55123308A
Authority
JP
Japan
Prior art keywords
piston
valve
intake port
exhaust
closing
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
JP2820279A
Other languages
Japanese (ja)
Other versions
JPS5650088B2 (en
Inventor
Hiroshi Nakajima
Katsumasa Araoka
Hiroyuki Nakamura
Shunichi Nakatani
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Toshiba Corp
Japan National Railways
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Toshiba Corp
Japan National Railways
Tokyo Shibaura Electric Co Ltd
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 JAPANESE NATIONAL RAILWAYS<JNR>, Toshiba Corp, Japan National Railways, Tokyo Shibaura Electric Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP2820279A priority Critical patent/JPS55123308A/en
Publication of JPS55123308A publication Critical patent/JPS55123308A/en
Publication of JPS5650088B2 publication Critical patent/JPS5650088B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE: To make an engine structure compact and light and to enhance its durability, by employing an arrangement in which opening and closing of an intake and an exhaust valves of a reciprocating engine is effected automatically in association with the movement of piston.
CONSTITUTION: Piston 1 is fitted in cylinder 2 in freely slidable manner. At the bottom of cylinder 2, there are formed an intake port 3 and an exhaust port 4. In the intake port 3, there are provided a valve 12 moved downward by spring 9 and a valve rod 11 which urges valve 12 upward by means of spring 10 for closing intake port 3. When the piston 1 comes near to the bottom dead point, valve rod 11 is moved downward for opening the intake port 3. On the other hand, exhaust valve 21 for opening and closing exhaust port 4 is connected to a cylindrical member 16, and stopper pawl 16a at the top of cylindrical member 16 is fitted in cam groove 20 formed in the side portion of piston 1. Therefore, exhaust port 4 is opened when piston 1 comes near to the top dead point and closed when piston 1 comes near to the bottom dead point.
COPYRIGHT: (C)1980,JPO&Japio
JP2820279A 1979-03-13 1979-03-13 Reciprocating engine Granted JPS55123308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2820279A JPS55123308A (en) 1979-03-13 1979-03-13 Reciprocating engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2820279A JPS55123308A (en) 1979-03-13 1979-03-13 Reciprocating engine

Publications (2)

Publication Number Publication Date
JPS55123308A true JPS55123308A (en) 1980-09-22
JPS5650088B2 JPS5650088B2 (en) 1981-11-26

Family

ID=12242074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2820279A Granted JPS55123308A (en) 1979-03-13 1979-03-13 Reciprocating engine

Country Status (1)

Country Link
JP (1) JPS55123308A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183648A (en) * 2007-01-29 2008-08-14 Takubo Seiki Seisakusho:Kk Reamer and hand reamer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183648A (en) * 2007-01-29 2008-08-14 Takubo Seiki Seisakusho:Kk Reamer and hand reamer

Also Published As

Publication number Publication date
JPS5650088B2 (en) 1981-11-26

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