JPS5444117A - Low noise engine for cars - Google Patents

Low noise engine for cars

Info

Publication number
JPS5444117A
JPS5444117A JP11016377A JP11016377A JPS5444117A JP S5444117 A JPS5444117 A JP S5444117A JP 11016377 A JP11016377 A JP 11016377A JP 11016377 A JP11016377 A JP 11016377A JP S5444117 A JPS5444117 A JP S5444117A
Authority
JP
Japan
Prior art keywords
bearing
divided boss
crank shaft
divided
boss part
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
JP11016377A
Other languages
Japanese (ja)
Other versions
JPS6146657B2 (en
Inventor
Fumiyuki Abe
Yoshimasa Hayashi
Akiyoshi Kimura
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP11016377A priority Critical patent/JPS5444117A/en
Priority to US05/920,783 priority patent/US4245595A/en
Priority to DE19782839885 priority patent/DE2839885A1/en
Publication of JPS5444117A publication Critical patent/JPS5444117A/en
Publication of JPS6146657B2 publication Critical patent/JPS6146657B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/008—Sound insulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To reduce noise by supporting a crank shaft by a divided boss for bearing arranged in an united body on the lower surface of a cylinder block and a bearing frame which has divided boss for bearing. CONSTITUTION:On the lower surface of a cylinder block 2, a divided boss part 4 for bearing is installed in an united body, positioned between each cylinder, and an under frame 6 formed on the lower surface of a bearing frame 3 having a divided boss part 5 for bearing correspoinding to the divided boss part 4 is connected with each divided boss part 5. A crank shaft is retained by said upper and lower divided boss parts 4 and 5. Accordingly, the flexural rigidity in the axial direction of the crank shaft is improved remarkably, and even if the repulsive force of bending vibration acts on the crank shaft, the vibration of the engine body is reduced remarkably, and the noise due to the vibration in relaxively low frequency range can be reduced.
JP11016377A 1977-09-13 1977-09-13 Low noise engine for cars Granted JPS5444117A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11016377A JPS5444117A (en) 1977-09-13 1977-09-13 Low noise engine for cars
US05/920,783 US4245595A (en) 1977-09-13 1978-06-30 Internal combustion engine for motor vehicles
DE19782839885 DE2839885A1 (en) 1977-09-13 1978-09-13 QUIET COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11016377A JPS5444117A (en) 1977-09-13 1977-09-13 Low noise engine for cars

Publications (2)

Publication Number Publication Date
JPS5444117A true JPS5444117A (en) 1979-04-07
JPS6146657B2 JPS6146657B2 (en) 1986-10-15

Family

ID=14528638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11016377A Granted JPS5444117A (en) 1977-09-13 1977-09-13 Low noise engine for cars

Country Status (1)

Country Link
JP (1) JPS5444117A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156947U (en) * 1980-04-21 1981-11-24
EP0054246A1 (en) * 1980-12-12 1982-06-23 Nissan Motor Co., Ltd. Internal combustion engine with bearing beam structure
CN109026429A (en) * 2018-07-23 2018-12-18 中船动力有限公司 High-power marine engine noise reducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01104380U (en) * 1987-12-28 1989-07-13

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724486U (en) * 1971-04-12 1972-11-18
JPS522005U (en) * 1975-06-24 1977-01-08
JPS5360416A (en) * 1976-11-12 1978-05-31 Mitsubishi Motors Corp Vibration preventing structure for reciprocating engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724486U (en) * 1971-04-12 1972-11-18
JPS522005U (en) * 1975-06-24 1977-01-08
JPS5360416A (en) * 1976-11-12 1978-05-31 Mitsubishi Motors Corp Vibration preventing structure for reciprocating engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156947U (en) * 1980-04-21 1981-11-24
EP0054246A1 (en) * 1980-12-12 1982-06-23 Nissan Motor Co., Ltd. Internal combustion engine with bearing beam structure
US4445472A (en) * 1980-12-12 1984-05-01 Nissan Motor Co., Ltd. Internal combustion engine with bearing beam structure
CN109026429A (en) * 2018-07-23 2018-12-18 中船动力有限公司 High-power marine engine noise reducer
CN109026429B (en) * 2018-07-23 2020-10-27 中船动力有限公司 High-power marine engine noise reduction device

Also Published As

Publication number Publication date
JPS6146657B2 (en) 1986-10-15

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