CN203939587U - A kind of basin shaped combustion chamber natural gas engine special piston - Google Patents

A kind of basin shaped combustion chamber natural gas engine special piston Download PDF

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Publication number
CN203939587U
CN203939587U CN201420323259.5U CN201420323259U CN203939587U CN 203939587 U CN203939587 U CN 203939587U CN 201420323259 U CN201420323259 U CN 201420323259U CN 203939587 U CN203939587 U CN 203939587U
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CN
China
Prior art keywords
piston
combustion chamber
shaped combustion
basin shaped
natural gas
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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.)
Active
Application number
CN201420323259.5U
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Chinese (zh)
Inventor
寇有来
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.)
BEIJING CHAIFA POWER TECHNOLOGY Co Ltd
Original Assignee
BEIJING CHAIFA POWER TECHNOLOGY Co Ltd
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Publication date
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Priority to CN201420323259.5U priority Critical patent/CN203939587U/en
Application granted granted Critical
Publication of CN203939587U publication Critical patent/CN203939587U/en
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Abstract

The utility model discloses a kind of basin shaped combustion chamber natural gas engine special piston, comprise piston only, the upper end of described piston only is provided with basin shaped combustion chamber, the below that described piston only is positioned at described basin shaped combustion chamber is provided with piston pin hole, on described piston ring groove, be cast with the cooling edge iron of piston ring, the cooling edge iron of described piston ring is positioned at the top of described piston pin hole.The utility model is by being provided with a basin shaped combustion chamber at piston-top surface, make to start function to there is good combustion characteristic and emission performance, and the machine oil in piston cooling oil chamber can play the cooling piston effect of forcing, take away firing chamber heat around, improve resistance to high heat load performance, the in the situation that of configuration preprocessor, can reach China V emission request.

Description

A kind of basin shaped combustion chamber natural gas engine special piston
Technical field
The utility model relates to a kind of motor special piston, relates in particular to a kind of basin shaped combustion chamber natural gas engine special piston.
Background technique
The intake manifold of single-point natural gas engine, as an important spare part of engine aspirating system, has not only determined the intake uniformity of initial charge flow rate coefficient and each cylinder, and has determined mixing efficiency and the actual volume rate of rock gas and air.Therefore the otherness of the volumetric efficiency on motor and each cylinder working performance has important impact, closely affects the output of power moment of torsion, air fuel ratio coefficient and the gas consumption rate of motor.
Model utility content
The purpose of this utility model is just to provide in order to address the above problem a kind of basin shaped combustion chamber natural gas engine special piston.
The utility model is achieved through the following technical solutions above-mentioned purpose:
1, the utility model comprises piston only, the upper end of described piston only is provided with basin shaped combustion chamber, the below that described piston only is positioned at described basin shaped combustion chamber is provided with piston pin hole, on described piston ring groove, be cast with the cooling edge iron of piston ring, the cooling edge iron of described piston ring is positioned at the top of described piston pin hole.
As preferably, the below that a side of described piston only is positioned at described pelvic cavity firing chamber is provided with cooling oil duct.
The beneficial effects of the utility model are:
The utility model is by being provided with a basin shaped combustion chamber at piston-top surface, make to start function to there is good combustion characteristic and emission performance, and the machine oil in piston cooling oil chamber can play the cooling piston effect of forcing, take away firing chamber heat around, improve resistance to high heat load performance, the in the situation that of configuration preprocessor, can reach China V emission request.
Brief description of the drawings
Fig. 1 is the sectional view of a kind of basin shaped combustion chamber natural gas engine special piston described in the utility model.
In figure: 1-basin shaped combustion chamber, 2-piston only, the cooling edge iron of 3-piston ring, 4-piston pin hole, 5-cooling oil duct.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises piston only 2, the upper end of piston only 2 is provided with basin shaped combustion chamber 1, the below that piston only 2 is positioned at pelvic cavity firing chamber 1 is provided with piston pin hole 4, piston only 2 tops are cast with the cooling edge iron 3 of piston ring, and the below that a side of piston only 2 is positioned at pelvic cavity firing chamber 1 is provided with cooling oil duct 5.
Those skilled in the art do not depart from essence of the present utility model and spirit, can there is various deformation scheme to realize the utility model, the foregoing is only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model, the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, within being all contained in interest field of the present utility model.

Claims (3)

1. a basin shaped combustion chamber natural gas engine special piston, it is characterized in that: comprise piston only, the upper end of described piston only is provided with basin shaped combustion chamber, the below that described piston only is positioned at described basin shaped combustion chamber is provided with piston pin hole, on described piston ring groove, be cast with the cooling edge iron of piston ring, the cooling edge iron of described piston ring is positioned at the top of described piston pin hole.
2. a kind of basin shaped combustion chamber natural gas engine special piston according to claim 1, is characterized in that: the upper end of described piston only is provided with the cooling edge iron of piston ring.
3. a kind of basin shaped combustion chamber natural gas engine special piston according to claim 2, is characterized in that: the below that a side of described piston only is positioned at described pelvic cavity firing chamber is provided with machine oil cooling oil duct.
CN201420323259.5U 2014-06-18 2014-06-18 A kind of basin shaped combustion chamber natural gas engine special piston Active CN203939587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420323259.5U CN203939587U (en) 2014-06-18 2014-06-18 A kind of basin shaped combustion chamber natural gas engine special piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420323259.5U CN203939587U (en) 2014-06-18 2014-06-18 A kind of basin shaped combustion chamber natural gas engine special piston

Publications (1)

Publication Number Publication Date
CN203939587U true CN203939587U (en) 2014-11-12

Family

ID=51858905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420323259.5U Active CN203939587U (en) 2014-06-18 2014-06-18 A kind of basin shaped combustion chamber natural gas engine special piston

Country Status (1)

Country Link
CN (1) CN203939587U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 101109 Beijing city Tongzhou District town Huoxian Kuo Xing two Street No. 2

Patentee after: BEIJING CHAIFA POWER TECHNOLOGY CO., LTD.

Address before: 100024, Beijing, Chaoyang Road, Chaoyang District, Yang gate, Huandao, East Acropolis, block A, 606

Patentee before: BEIJING CHAIFA POWER TECHNOLOGY CO., LTD.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Piston special for natural gas engine and with basin-type burning chamber

Effective date of registration: 20170623

Granted publication date: 20141112

Pledgee: Beijing technology intellectual property financing Company limited by guarantee

Pledgor: BEIJING CHAIFA POWER TECHNOLOGY CO., LTD.

Registration number: 2017990000529

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20190411

Granted publication date: 20141112

Pledgee: Beijing technology intellectual property financing Company limited by guarantee

Pledgor: BEIJING CHAIFA POWER TECHNOLOGY CO., LTD.

Registration number: 2017990000529

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Piston special for natural gas engine and with basin-type burning chamber

Effective date of registration: 20190411

Granted publication date: 20141112

Pledgee: Beijing technology intellectual property financing Company limited by guarantee

Pledgor: BEIJING CHAIFA POWER TECHNOLOGY CO., LTD.

Registration number: 2019990000317

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20210407

Granted publication date: 20141112

Pledgee: Beijing technology intellectual property financing Company limited by guarantee

Pledgor: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE Co.,Ltd.

Registration number: 2019990000317

PC01 Cancellation of the registration of the contract for pledge of patent right