GB1478293A - Piston having a re-entrant bowl type combustion chamber for an internal combustion engine - Google Patents

Piston having a re-entrant bowl type combustion chamber for an internal combustion engine

Info

Publication number
GB1478293A
GB1478293A GB3356773A GB3356773A GB1478293A GB 1478293 A GB1478293 A GB 1478293A GB 3356773 A GB3356773 A GB 3356773A GB 3356773 A GB3356773 A GB 3356773A GB 1478293 A GB1478293 A GB 1478293A
Authority
GB
United Kingdom
Prior art keywords
piston
shield
cavity
wall
july
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.)
Expired
Application number
GB3356773A
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.)
Perkins Ltd
Original Assignee
Perkins Engines 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 Perkins Engines Ltd filed Critical Perkins Engines Ltd
Priority to GB3356773A priority Critical patent/GB1478293A/en
Priority to DE2432990A priority patent/DE2432990A1/en
Priority to JP49079719A priority patent/JPS5070715A/ja
Priority to ES428229A priority patent/ES428229A1/en
Priority to FR7424287A priority patent/FR2237064B1/fr
Publication of GB1478293A publication Critical patent/GB1478293A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0009—Cylinders, pistons
    • B22D19/0027—Cylinders, pistons pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0636—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • F02B2023/0612—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head the material having a high temperature and pressure resistance, e.g. ceramic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

1478293 Diesel engine piston combustion chambers PERKINS ENGINES Ltd 9 July 1974 [13 July 1973 28 July 1973] 33567/73 Heading F1B [Also in Division B3] A sheet metal, e.g. stainless steel, shield 28 has a radially outwardly extending rim 30 located in a recess 32 in the piston crown 20 and a re-entrant portion 36 engaging the wall of the piston cavity 24 to retain the shield in position. The shield may cast-in position on a multi-piece core when casting the piston or the portion 36 can be deformed into engagement with the cavity wall by a roller tool (42), Fig. 3 (not shown). The piston can be rotated past the tool or the latter can be arranged to orbit inside the cavity 24 to effect shield deformation. The piston lip 26 may have stress relieving notches 38. The outer edge of the rim 30 may be chamfered, Fig. 4 (not shown), to enable some of the material of the piston to be deformed over the chamber (31) and the outer edge of the portion 36 may dig into the cavity wall, be rolled into a depression (48), Fig. 5 (not shown), in the wall or have tabs (52), Fig. 6 (not shown), deformed into a groove (53) in the wall. The shield may be bowl-shaped, Fig. 7 (not shown), and located in a cylindrical cavity 24 in the piston to define an air gap (40) with the cavity wall outwardly of the cavity opening (62) defined by the shield.
GB3356773A 1973-07-13 1973-07-13 Piston having a re-entrant bowl type combustion chamber for an internal combustion engine Expired GB1478293A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3356773A GB1478293A (en) 1973-07-13 1973-07-13 Piston having a re-entrant bowl type combustion chamber for an internal combustion engine
DE2432990A DE2432990A1 (en) 1973-07-13 1974-07-09 PISTONS FOR COMBUSTION ENGINES
JP49079719A JPS5070715A (en) 1973-07-13 1974-07-11
ES428229A ES428229A1 (en) 1973-07-13 1974-07-12 Improvements improved in a piston for an internal combustión engine. (Machine-translation by Google Translate, not legally binding)
FR7424287A FR2237064B1 (en) 1973-07-13 1974-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3356773A GB1478293A (en) 1973-07-13 1973-07-13 Piston having a re-entrant bowl type combustion chamber for an internal combustion engine

Publications (1)

Publication Number Publication Date
GB1478293A true GB1478293A (en) 1977-06-29

Family

ID=10354609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3356773A Expired GB1478293A (en) 1973-07-13 1973-07-13 Piston having a re-entrant bowl type combustion chamber for an internal combustion engine

Country Status (1)

Country Link
GB (1) GB1478293A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096726A1 (en) * 2000-06-16 2001-12-20 Mahle Gmbh Diesel engine piston
CN103688035A (en) * 2011-07-15 2014-03-26 马勒国际公司 Piston for an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096726A1 (en) * 2000-06-16 2001-12-20 Mahle Gmbh Diesel engine piston
CN103688035A (en) * 2011-07-15 2014-03-26 马勒国际公司 Piston for an internal combustion engine

Similar Documents

Publication Publication Date Title
GB1249685A (en) Improvements relating to internal combustion engines
ES459652A1 (en) Pistons for internal combustion engines
GB1316046A (en) Piston for injection-type diesel combustion engines especially diesel engines
GB1505096A (en) Pistons
ES479045A1 (en) Piston for internal engines.
ES457419A1 (en) Pistons for internal combustion engines
GB1478293A (en) Piston having a re-entrant bowl type combustion chamber for an internal combustion engine
GB1212053A (en) A piston engine with an exchangeable cylinder liner
ES458609A1 (en) Integral spring piston ring
JPS51126409A (en) Cylinder head of automotive engine
GB1478379A (en) Mounting of a cylinder liner
JPS52134944A (en) Piston for internal combustion engine
GB1344286A (en) Piston assembly
GB1407174A (en) Water-cooled reciprocating-piston engine
GB1203926A (en) Improvements in and relating to pistons particularly for internal combustion engines
JPS55139945A (en) Vibroisolating construction of cylinder block
GB1158957A (en) Improvements relating to Pistons for Rotary-Piston Engines.
EP0168153A3 (en) Crankshaft for an internal combustion engine
GB974266A (en) Improvements relating to internal combustion engines
GB1435578A (en) Engine housings
JPS57200650A (en) Piston for internal-combustion engine
JPH0237484U (en)
GB1408100A (en) Spark-ignition type internal combustion engine
GB1349057A (en) Compression ignition engine combustion chamber and insert therefor
FR2283326A1 (en) Light alloy piston for high speed engines - has bimetallic insert within piston set out near gudgeon pin

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee