CN2390011Y - Piston combustion chamber of YC 6112 ZLQ diesel engine - Google Patents

Piston combustion chamber of YC 6112 ZLQ diesel engine Download PDF

Info

Publication number
CN2390011Y
CN2390011Y CN99238188U CN99238188U CN2390011Y CN 2390011 Y CN2390011 Y CN 2390011Y CN 99238188 U CN99238188 U CN 99238188U CN 99238188 U CN99238188 U CN 99238188U CN 2390011 Y CN2390011 Y CN 2390011Y
Authority
CN
China
Prior art keywords
piston
firing chamber
combustion chamber
top surface
diesel engine
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 - Lifetime
Application number
CN99238188U
Other languages
Chinese (zh)
Inventor
王建明
卓松芳
邱瑞兴
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.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery 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 Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN99238188U priority Critical patent/CN2390011Y/en
Application granted granted Critical
Publication of CN2390011Y publication Critical patent/CN2390011Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The utility model discloses a piston combustion chamber of a YC 6112 ZLQ diesel engine. The utility model is composed of a ring groove, an inlaid ring of the ring groove, a piston body, the top surface of the piston, a combustion chamber, etc. The utility model which is characterized in that the lower part of the middle position of the top surface of the piston is provided with the combustion chamber (18), and the combustion chamber (18) is an omega-shaped combustion chamber; the side wall of the outer circle of the combustion chamber (18) is clamped with the inlaid ring (3), the volume of the combustion chamber (18) is between 50 cm < 3 > and 70 cm < 3 >, and the anodizing thickness between the top surface (6) of the piston and the combustion chamber (18) is not less than 30 mu m via water measurement through a burette. The utility model has the advantages that the volume of the combustion chamber is more than 55 cm < 3 >, and the piston is durable with easy fabrication, convenient installation and operation, etc. The utility model is suitable for a piston of a diesel engine having six cylinders.

Description

YC6112ZLQ diesel engine piston firing chamber
The utility model relates to piston, particularly a kind of YC6112ZLQ diesel engine piston firing chamber.
The fuselage of the similar diesel engine of 6112ZLQ of existing offshore company is heavy, and moment of torsion is little, and the boundary dimension bulkiness for example is Japanese wild machine nt wt net weight 917Kg, boundary dimension 1580 * 930 * 1140; The net weight 860Kg of Iveco S. P. A., nominal power 161kw/2100r/min.And more domestic similar manufacturer production compare that also to exist noise big, horsepower is little, defectives such as oil consumption height.
The purpose of this utility model is to provide a kind of compression ratio big, and fuselage is gently little, and is efficient, its total displacement L7.800, nominal power 199kw/2300r/min, speed at maximum torque 980Nm/1500r/min, external characteristics consumption minimization 210g/kwh, machine oil fuel consume be than 0.5%, exhaust smoke FSN4.0,600 ℃ of delivery temperatures, noise level limit dB (A) 116, boundary dimension 1184 * 800 * 1044, nt wt net weight 633Kg, horsepower is big, and easy to manufacture, combustion chamber volume easy to install is at 50-70cm 3YC6112ZLQ diesel engine piston firing chamber.
Technical solution of the present utility model is such, this piston comprises by the edge circle of piston ring groove, piston ring groove, piston body, piston-top surface, firing chamber, is cast with the firing chamber under the end face medium position of piston, the firing chamber is a toroidal combustion chamber, the outer annulus edge of firing chamber has annular groove, annular groove clamps the edge circle of useful reinforcing fibre material, this edge circle can be when the die casting piston, die casting is simultaneously gone into, also can open an annular groove earlier at firing chamber outer annulus edge wall, annular groove manufactures into corresponding specification size with Xiang Quan, afterwards the die casting of edge circle is gone into.The volume of firing chamber is 50-70cm 3Piston-top surface and firing chamber periphery together with the base all through anodization thickness 〉=30 μ m, the edge circle reinforcing fiber pottery of firing chamber, base, firing chamber to piston-top surface distance is 15-30mm, upper end, firing chamber bore is φ 45-φ 65mm, Xiang Quan base, firing chamber to piston-top surface distance is φ 10-30mm, firing chamber edge circle outer circle diameter is φ 65-φ 85mm, base, firing chamber transition arc is R5-R9, internal projection oblique angle, firing chamber angle transition arc is R5-R9, piston center line to the horizontal of firing chamber center line throw of eccentric is 2-6mm, is 0.5-3mm longitudinally.The edge circle outside diameter of firing chamber is φ 65-φ 85mm, the outer circle diameter bottom of firing chamber edge circle is that the circular diameter of lower end, a tiltedly round inclined-plane is φ 60-φ 85mm, the great circle footpath of upper end, inclined-plane highly is 15-30mm, and the internal projection oblique angle of firing chamber is 35 °-55 °, and the manufacturing technology requirement of piston is:
1, materials chemistry composition (%):
Si:11～13; Cu:0.8～1.5; Ni:0.8～1.3; Mg:0.8～1.3; Fe≤0.7; Ti≤0.2; Zn≤0.3; Al is a surplus.
2, heat treatment: twice heat treatment (being similar to SAE-76) hardness 100-130HB.
3, skirt section graphitization, coating thickness are 0.02, and illustrated dimensions is for being coated with preceding size, the classification before coating is handled of skirt section diameter.
4,20 ℃ the time, the mean specific gravity of aluminum alloy is 2.68-2.74g/cm 3
5, all ring bank chamferings all must be at piston thrust face one side central line measurement.
6, piston head (comprising combustion recess) anodization thickness is 〉=30 μ m, and the combustion recess volume is 56.24cm 3± 1cm 3
7, piston ring groove side total run-out amount is less than or equal to 0.03, should be less than or equal to 0.008 on per 25.4 circumference of the variance ratio of dial indicator total indicator reading.
8, except that indicating, the radial skew of surface of piston ring groove per 1 should be less than or equal to 2 μ m.
9, to same piston, the change width that the change width of the second road compression should be less than or equal to 0.01, the three road ring annular groove should be less than or equal to 0.02.
10, the piston mass difference should be less than or equal to 5g on the same group.
11, all sizes all should be measured when coating is handled preceding 21 ℃.
12, metallographic structure should meet the ZB/TT06002 regulation.
13, do not annotate curving of castings radius and be less than or equal to 3, pattern draft is less than or equal to 3 °.
14, do not annotate the machining dimension tolerance and carry out, annotate the casting tolerance of size and press the GB6416-86CT6 execution by GB/T1804-921T13.
15, all the other technical specifications require to answer the regulation of accord with Q/YC20-1994 " YC6112ZLQ Diesel Engine Piston technical specifications ".
16, the abrasion-proof inserted ring material is high-nickel austenitic cast iron (ZBJ92003-87), and its bond quality should meet ZBT12006-89 (pressure ratio) 2).
17, the firing chamber stupalith is the reinforcing fiber pottery, and blank adopts liquid die forging casting (being die casting).
18, remove the wedge angle burr.
The utility model has the advantages that: the firing chamber ride quality of piston is good, sufficient combustion, compression ratio is greater than 2, piston manufacturing process advanced person, precision easily guarantees, low cost of manufacture, in light weight, meet the installation machine requirement, net weight of diesel engine amount 633Kg with the installation of this piston, boundary dimension length * wide * high (mm) 1184 * 800 * 1044mm, total displacement 7.8L, nominal power (kw/r/min): 199/2300, speed at maximum torque: 980Nm/1500r/min, external characteristics consumption minimization g/kwh:218, machine oil fuel consume be than 0.5%, exhaust smoke FSN4.0,600 ℃ of delivery temperatures, noise limit value dB (A) 116.It is good to have more the complete machine roadability, and horsepower is big, and is easy to install, durable etc., is suitable for six cylinder serial diesel engine pistons and installs and uses.
It is such that structure of the present utility model constitutes.
Fig. 1 looks sectional view for overall structure master of the present utility model.
Fig. 2 is the integrally-built B-B sectional view among Fig. 1 of pressing of the present utility model.
Fig. 3 is an overall structure outline drawing of the present utility model.
Fig. 4 is that the P that presses among Fig. 3 of the present utility model is to view.
Fig. 5 is that the III that presses among Fig. 1 of the present utility model is to view.
Fig. 6 is that the II that presses among Fig. 2 of the present utility model is to view.
Fig. 7 is that the I that presses among Fig. 2 of the present utility model is to view.
Fig. 8 is the A-A sectional view among Fig. 2 of pressing of the present utility model.
Fig. 9 is the first road annular groove shape enlarged view of the present utility model.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, among Fig. 9, firing chamber pottery edge circle (1), firing chamber edge circle is with footpath cylindrical height (2), firing chamber Xiang Quan (3), the edge circle end, firing chamber is smallest end external diameter (4), firing chamber edge circle external diameter (5), piston-top surface (6), piston body (7), piston ring edge circle (8), annular groove (9), piston-top surface is to base, firing chamber distance (10), circle upper end-hole leaning angle angle (11) in the edge circle of firing chamber, internal projection oblique angle, firing chamber (12), circle (13) in the firing chamber, firing chamber edge circle at the end circle be interior justify (14) of smallest end, internal projection oblique angle, firing chamber transition arc (15), firing chamber inner ring port transition arc (16), transition arc at the bottom of the firing chamber (17), firing chamber (18), piston-top surface is to the overall height (19) of bottom surface, outside piston (20), piston is horizontal apart from (21) to the firing chamber throw of eccentric, piston is vertical throw of eccentric (22) to the firing chamber.
Most preferred embodiment of the present utility model is such, in Fig. 9, firing chamber outer annulus edge wall is the edge circle (3) of reinforcing fiber pottery, promptly casting a pit under the medium position of piston-top surface (6) is toroidal combustion chamber (18), firing chamber (18) circle edge is opened an annular groove, annular groove studs with the reinforcing fiber pottery, edge circle (3), firing chamber edge circle outer circle diameter (5) is φ 79mm, Xiang Quan lower end, firing chamber smallest end (4) outer circle diameter is φ 73mm, has three road annular grooves (9) on piston body (7) outer circle diameter, it is the inlaid ring of ring slot (8) of high-nickel austenitic cast iron that annular groove (9) periphery pincers have high-abrasive material.Piston-top surface to base, firing chamber distance (10) is 24.5 ± 0.1, the leaning angle angle (11) of circle upper end-hole is 9.52 ° in the firing chamber Xiang Quan (3), internal projection oblique angle, firing chamber (12) is 43.2 ° ± 0.5 °, circle upper end-hole (13) circle footpath is φ 55.6 ± 0.1 in the firing chamber, circle footpath (14) is φ 60.79 ± 0.1 in the lower end mouth of firing chamber Xiang Quan (3), the transition arc (15) of firing chamber internal projection angle is R7 ± 0.1, the transition arc (16) of firing chamber upper end-hole filleted corner is R1.0 ± 0.1, base, firing chamber transition arc (17) is R7.5 ± 0.1, and the volume of firing chamber (18) is 56.24cm 3± 1cm 3Piston (19) overall height is 113.507, and outside piston footpath (20) is φ 109.7-0.1.The horizontal throw of eccentric (21) at piston center to center, firing chamber is 4.9 ± 0.05mm, and vertically throw of eccentric is 1.65 ± 0.05mm, and the knuckle of piston ring groove and pin-and-hole drift angle is with reference to Fig. 5, Fig. 6, Fig. 7, Fig. 9.Piston pin hole is pressed as follows with reference to the technical requirements of the manufacturing of Fig. 8, piston:
1, materials chemistry composition (%):
Si:11～13; Cu:0.8～1.5; Ni:0.8～1.3; Mg:0.8～1.3; Fe≤0.7; Ti≤0.2; Mn≤0.3; Zn≤0.3; Al is a surplus.
2, heat treatment: twice heat treatment (being similar to SAE-76) hardness 100-130HB.
3, skirt section graphitization, coating thickness are 0.02, and illustrated dimensions is for being coated with preceding size, the classification before coating is handled of skirt section diameter.
4,20 ℃ the time, the mean specific gravity of aluminum alloy is 2.68～2.74g/cm 3
5, all ring bank chamferings all must be at piston thrust face one side central line measurement.
6, piston head (comprising combustion recess) anodization thickness is 〉=30 μ m, and the combustion recess volume is 56.24cm 3± 1cm 3
7, piston ring groove side total run-out amount is less than or equal to 0.03, should be less than or equal to 0.008 on per 25.4 circumference of the variance ratio of dial indicator total indicator reading.
8, except that indicating, the radial skew of surface of piston ring groove per 1 should be less than or equal to 2 μ m.
9, to same piston, the change width that the change width of the second road compression should be less than or equal to 0.01, the three road ring annular groove should be less than or equal to 0.02.
10, the piston mass difference should be less than or equal to 5g on the same group.
11, all sizes all should be measured when coating is handled preceding 21 ℃.
12, metallographic structure should meet the ZB/TT06002 regulation.
13, do not annotate curving of castings radius and be less than or equal to 3, pattern draft is less than or equal to 3 °.
14, do not annotate the machining dimension tolerance and carry out, annotate the casting tolerance of size and press the GB6416-86CT6 execution by GB/T1804-921T13.
15, all the other technical specifications require to answer the regulation of accord with Q/YC20-1994 " YC6112ZLQ Diesel Engine Piston technical specifications ".
16, the abrasion-proof inserted ring material is high-nickel austenitic cast iron (ZBJ92003-87), and its bond quality should meet ZBT12006-89 (pressure ratio＞2).
17, the firing chamber stupalith is the reinforcing fiber pottery, and blank adopts liquid die forging casting (being die casting).
18, remove the wedge angle burr.

Claims (2)

1, a kind of YC6112ZLQ diesel engine piston firing chamber, comprise piston ring groove, inlaid ring of ring slot alive, piston body, piston-top surface, firing chamber, firing chamber Xiang Quan, it is characterized in that being cast with firing chamber (18) under the piston-top surface medium position is toroidal combustion chamber, firing chamber (18) outer annulus edge wall pincers have edge circle (3), the volume of firing chamber (18) is 50～70cm3, piston-top surface (6) and firing chamber (18) anodization thickness 〉=30 μ m.
2, according to the described YC6112ZLQ diesel engine piston of claim 1 firing chamber, the edge circle (3) that it is characterized in that firing chamber (18) is used the reinforcing fiber pottery, base, firing chamber to piston-top surface distance (10) is 15～30mm, firing chamber (18) upper end-hole internal diameter (13) is Φ 45～Φ 46mm, edge circle (3) bottom surface (1) to piston-top surface distance is 10～30mm, the outer circle diameter (4) of edge circle (3) is Φ 65～Φ 85mm, the base transition arcs of firing chamber (18) is R5～R9, internal projection oblique angle, firing chamber angle transition arc (15) is R5～R9, piston center line to horizontal (21) of the throw of eccentric of firing chamber center line are 2～6mm, and vertically (22) are 0.5～3mm.
CN99238188U 1999-07-23 1999-07-23 Piston combustion chamber of YC 6112 ZLQ diesel engine Expired - Lifetime CN2390011Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99238188U CN2390011Y (en) 1999-07-23 1999-07-23 Piston combustion chamber of YC 6112 ZLQ diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99238188U CN2390011Y (en) 1999-07-23 1999-07-23 Piston combustion chamber of YC 6112 ZLQ diesel engine

Publications (1)

Publication Number Publication Date
CN2390011Y true CN2390011Y (en) 2000-08-02

Family

ID=34025678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99238188U Expired - Lifetime CN2390011Y (en) 1999-07-23 1999-07-23 Piston combustion chamber of YC 6112 ZLQ diesel engine

Country Status (1)

Country Link
CN (1) CN2390011Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445544C (en) * 2006-03-09 2008-12-24 廖伯成 Piston with pressure-reducing piston ring
CN102052142A (en) * 2011-01-28 2011-05-11 东风朝阳柴油机有限责任公司 Diesel engine combustion chamber off-centered with piston body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445544C (en) * 2006-03-09 2008-12-24 廖伯成 Piston with pressure-reducing piston ring
CN102052142A (en) * 2011-01-28 2011-05-11 东风朝阳柴油机有限责任公司 Diesel engine combustion chamber off-centered with piston body

Similar Documents

Publication Publication Date Title
EP1730396A2 (en) High strength steel cylinder liner for diesel engine
CN101065568A (en) Method for producing a piston for a combustion engine
CN104179591B (en) A kind of piston structure realizing variable compression ratio of engines
CN2390011Y (en) Piston combustion chamber of YC 6112 ZLQ diesel engine
WO2021237815A1 (en) Steel piston forging die
CN1880748A (en) Piston of high power diesel engine and method for fabricating same
CN203347934U (en) High-power diesel engine piston for ship
CN216111005U (en) Engine special for range extender
CN201265459Y (en) Piston of 1.3L petrol engine
CN2388358Y (en) Piston ocmbustion chamber for YC 61122LQ diesel engine
CN204099395U (en) Six cylinder ductile iron crankshafts
CN2388360Y (en) Piston combustion chamber for YC4110 Q diesel engine
CN113638804B (en) Special engine for range extender
CN2390012Y (en) Piston combustion chamber of YC 4108 Q diesel engine
CN1800634A (en) Electric control valve flow-distribution mechanism for crankshaft connecting rod type low-speed high-torque hydraulic motor
CN2876350Y (en) Piston structure of diesel oil engine
CN113482765A (en) Natural gas engine
US20230193847A1 (en) Cylinder Liner and Cylinder Bore
CN2390010Y (en) Piston combustion chamber of YC 6105QC diesel engine
CN2741686Y (en) Slope end surface cold extruding combined concave mold
CN201606149U (en) Three-cylinder diesel engine
CN201148921Y (en) Second gas ring of diesel
CN2210257Y (en) High load piston
CN204175418U (en) Six cylinder air-cooled diesel engines
CN216306647U (en) Sintered and formed combined cam shaft for powder metallurgy cam

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term