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GB201207569D0 - A method of evaluating a thermal fatigue of a cylinder head of an internal combustion engine - Google Patents

A method of evaluating a thermal fatigue of a cylinder head of an internal combustion engine

Info

Publication number
GB201207569D0
GB201207569D0 GBGB1207569.3A GB201207569A GB201207569D0 GB 201207569 D0 GB201207569 D0 GB 201207569D0 GB 201207569 A GB201207569 A GB 201207569A GB 201207569 D0 GB201207569 D0 GB 201207569D0
Authority
GB
United Kingdom
Prior art keywords
cylinder head
evaluating
thermal fatigue
combustion engine
internal combustion
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.)
Withdrawn
Application number
GBGB1207569.3A
Other versions
GB2501701A (en
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to GB1207569.3A priority Critical patent/GB2501701A/en
Publication of GB201207569D0 publication Critical patent/GB201207569D0/en
Publication of GB2501701A publication Critical patent/GB2501701A/en
Withdrawn legal-status Critical Current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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F2001/008—Stress problems, especially related to thermal stress
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/248—Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

An embodiment of the invention provides a method of evaluating a thermal fatigue of a cylinder head 130 of an internal combustion engine 110, comprising the steps of: re­ceiving a first signal T(t) representative of a temperature of the cylinder head 130; filtering the first signal T(t) to obtain a second signal Tm(t) representative of a mean tempera­ture of the cylinder head 130; and calculating an evaluating index KTHD for the thermal fatigue of the cylinder head 130 according to the expression:           t 1 K THD = « | T(t) T m (t) | d t,           t 0 wherein t is the time, tl is the time instant at which the calculation is made, and t0 is a predetermined time instant that precedes the time instant t1.
GB1207569.3A 2012-04-30 2012-04-30 A method of evaluating the thermal fatigue of a cylinder head of an internal combustion engine Withdrawn GB2501701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1207569.3A GB2501701A (en) 2012-04-30 2012-04-30 A method of evaluating the thermal fatigue of a cylinder head of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1207569.3A GB2501701A (en) 2012-04-30 2012-04-30 A method of evaluating the thermal fatigue of a cylinder head of an internal combustion engine

Publications (2)

Publication Number Publication Date
GB201207569D0 true GB201207569D0 (en) 2012-06-13
GB2501701A GB2501701A (en) 2013-11-06

Family

ID=46330590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1207569.3A Withdrawn GB2501701A (en) 2012-04-30 2012-04-30 A method of evaluating the thermal fatigue of a cylinder head of an internal combustion engine

Country Status (1)

Country Link
GB (1) GB2501701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114720257A (en) * 2022-03-18 2022-07-08 昆明理工大学 A thermal fatigue test method for component materials based on scaled specimens
CN114934855A (en) * 2022-05-16 2022-08-23 中北大学 Multi-scale division method of thermal field of cylinder head fire surface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10349698B2 (en) * 2016-08-16 2019-07-16 Concrete Distribution, Inc. Protective helmet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4844030A (en) * 1985-12-12 1989-07-04 Cummins Engine Company, Inc. Thermal fatigue resistant cylinder head
FR2780505B1 (en) * 1998-06-26 2000-09-15 Montupet Sa THERMAL FATIGUE TEST BENCH OF COMBUSTION ENGINE CYLINDERS, AND RELATED METHODS
JP2011158362A (en) * 2010-02-01 2011-08-18 Kyushu Electric Power Co Inc Thermal fatigue evaluation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114720257A (en) * 2022-03-18 2022-07-08 昆明理工大学 A thermal fatigue test method for component materials based on scaled specimens
CN114720257B (en) * 2022-03-18 2023-07-21 昆明理工大学 A Thermal Fatigue Test Method for Component Materials Based on Scaled-down Samples
CN114934855A (en) * 2022-05-16 2022-08-23 中北大学 Multi-scale division method of thermal field of cylinder head fire surface
CN114934855B (en) * 2022-05-16 2023-07-28 潍柴动力股份有限公司 Multi-scale detection method for thermal field of thermal surface of cylinder cover

Also Published As

Publication number Publication date
GB2501701A (en) 2013-11-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)