CN205532911U - Engine cylinder block with external cooling water cavity - Google Patents

Engine cylinder block with external cooling water cavity Download PDF

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Publication number
CN205532911U
CN205532911U CN201620120157.2U CN201620120157U CN205532911U CN 205532911 U CN205532911 U CN 205532911U CN 201620120157 U CN201620120157 U CN 201620120157U CN 205532911 U CN205532911 U CN 205532911U
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China
Prior art keywords
cylinder
water cavity
engine
water
tributary
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Application number
CN201620120157.2U
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Chinese (zh)
Inventor
胡雪松
赵霄鹏
董志强
乌永波
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Dongfeng Chaoyang Dcd Environmental Protection Technology Co ltd
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Dongfeng Chaoyang Dcd Environmental Protection Technology Co ltd
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Priority to CN201620120157.2U priority Critical patent/CN205532911U/en
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Publication of CN205532911U publication Critical patent/CN205532911U/en
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Abstract

The utility model discloses an engine cylinder block with external cooling water cavity, its structure is: on the cylinder body top surface between every cylinder of engine, all be equipped with an outside tributary water cavity. Be equipped with the water hole corresponding with every tributary water cavity in the cylinder body, the water hole communicates with each other with the engine cylinder block water jacket is parallelly connected through respective flow channel. Cooling water in the water cavity of tributary gets into from cylinder body water jacketed one side, returns from the opposite side behind the cylinder body top surface between two jars of flowing through, constitutes closed circulation jointly with the engine cooling system. Top surface between cylinder body per two cylinder holes increases supplementary water cavity, is to cylinder body inside cooling jacket circulation path's replenishment and perfect. Make that former cooling jacket can not cool off, the hottest position obtains the cooling. The cooling that the position is piled up to the metal between two jars has been reinforceed to this structure under the unchangeable basically condition of engine cooling system architecture, consequently can effectively fall the heating load of combustion chamber, can effectively avoid the engine cylinder hole to cross a series of problems that heat altered shape was brought.

Description

Engine cylinder-body with outside cooling water cavity
Technical field
This utility model belongs to engine parts, is specifically related to the constructional device of a kind of diesel motor cylinder cooling water cavity.
Background technology
Cylinder body bears various load as the mounting framework of engine system, and the cylinder holes on cylinder body is used for installing piston and sealing combustion Burning room, cylinder holes is as a part for combustor, in addition to needing to bear the pressure that burning produces, piston friction to be tolerated and produce Raw high temperature.The heat build-up that especially cylinder holes top combustor produces, as do not cooled down in time, cylinder holes and piston will be due to mistakes Heat and be deformed, the scuffing of cylinder bore fault causing piston and cylinder abnormal friction to produce, make electromotor scrap.In order to cool down cylinder body one As need to cast out cooling water cavity at the outer wall of cylinder holes, logical supercooled water carries out compulsory circulative cooling, to ensure that electromotor is normally transported OK.
The cylinder of general electromotor is designed as arrangement in upright arrangement, and the cylinder centre line spacing between two cylinders can not be too big, otherwise can make electromotor Length increases, so cannot cast out cooling water cavity because distance is less between two cylinders.The problem thus brought is, between two cylinders Casing wall the most overheated, and the difference on cylinder body each radiating part bit architecture to cause cylinder body thermal stress unbalanced, this is for starting Machine is the most unfavorable for service life.Especially cylinder holes deformed conference and caused piston and cylinder holes excesssive gap or too small, caused air leakage Increase, engine oil consumption increases, and makes engine operating condition deteriorate, and performance reduces.The structure that the utility model proposes can make cylinder body cooling effect Fruit is significantly improved.
Summary of the invention
The purpose of this utility model is to provide a kind of engine water cavity configuration with outside cooling structure, does not strengthens at cylinder centre line spacing In the case of, make effectively to be cooled down between two cylinders, reach the effect that cylinder holes surrounding uniformly cools down.
For realizing this purpose, technical solution adopted in the utility model is: on the cylinder deck between per cylinder engine, It is equipped with an outside tributary water cavity.Being provided with the water hole corresponding with each tributary water cavity in engine cylinder, water hole is by each Tributary waterway communicate with cylinder body water jacket of engine parallel connection.Cooling water in the water cavity of tributary enters from the side of cylinder body water jacket, flows through After cylinder deck between two cylinders, returning cylinder body water jacket from opposite side, tributary water cavity and engine-cooling system collectively form closing Circulation.
The number of tributary water cavity subtracts 1 equal to cylinder sum, so the portion between every two cylinders of electromotor (cylinder deck) Position is equipped with the cooling water cavity of.Because the distance between internal two cylinders of engine cylinder-body is the least, it is impossible to cast out water cavity, But the tributary water cavity of an auxiliary can be cast out in the outside of cylinder deck.Owing to the top of each cylinder-bore is engine cylinder The position that body is the warmmest, so set up a tributary water cavity in this position, even if volume is the least also has extraordinary cooling effect, Can effectively take away more heat.Meanwhile, during electromotor work, the heat in cylinder is conducted extremely by the inside and outside wall of cylinder body In the coolant of cylinder body water jacket, cooling water is recycled to radiator through water pump and cools down, and returns again to cylinder body water jacket.
Feature of the present utility model and providing the benefit that, the end face position between engine cylinder-body each two cylinder-bore increases auxiliary Water cavity, is to supplement engine cylinder-body internal cooling water (overlapping) circulating path and perfect.Make the cylinder interior cooling jacket can not Position that is that cool down but that be the hottest is cooled down, it is achieved that the water cavity of cylinder deck peripheral hardware and cylinder interior water jacket are simultaneously to cylinder Hole cools down, and improves cooling effect.This structure, in the case of engine cooling system structure is basically unchanged, enhances two The thermic load of combustor, therefore can effectively drop in the cooling at metal accumulation position between cylinder, can be prevented effectively from the overheated change of engine cylinder hole The series of problems that shape is brought.
Accompanying drawing explanation
Accompanying drawing 1 is principle of the present utility model and structure diagram.
Accompanying drawing 2 is the structure diagram of Figure 1A-A section.
Accompanying drawing 3 is the structure diagram of Figure 1B-B section.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the principle of utility model is further described with structure.
With the engine cylinder-body of outside cooling water cavity, its structure is: on the cylinder deck 1 between per cylinder engine, Being equipped with an outside tributary water cavity 2, be provided with the water hole 4 corresponding with each tributary water cavity in engine cylinder body, water hole is passed through Respective tributary waterway communicates with cylinder body water jacket of engine 3 parallel connection.Cooling water in the water cavity of tributary enters from the side of cylinder body water jacket, After flowing through the cylinder deck between two cylinders, returning cylinder body water jacket from opposite side, tributary water cavity collectively forms with engine-cooling system Closed circulation.
Tributary water cavity is sealed by the cylinder liner of engine cylinder cap with cylinder deck.Tributary water cavity casts together with engine cylinder-body Go out.The number of tributary water cavity subtracts 1 equal to cylinder sum.
The water cavity of engine cylinder-body is divided into interior water cavity (former cylinder block cooling water set) and outer water cavity (tributary water cavity) by this utility model Two parts, outer water cavity is responsible for the cooling at position between two cylinders, and cylinder body water jacket is responsible for the cooling to other position of cylinder holes, the coldest But effect ensure that cylinder holes is consistent along all cooling effects, and then ensure that the uniformity of engine cylinder-body thermal stress.Perfect The cooling at position between two cylinders that cooling structure does not relates at present, the effect of this inside and outside water cavity dual-cooled will be apparently higher than only There is the cylinder body that cylinder body water jacket cools down.
Tributary water cavity cooling jacket original with engine interior constitute in parallel, tributary water cavity be respectively arranged at two ends with water hole, this water Hole communicates with cylinder body water jacket of engine.During electromotor work, tributary water cavity inner cooling water enters the water of engine cylinder-body by water hole Set.Tributary water cavity relies on (cylinder cap is connected above with cylinder body) cylinder liner to seal, cold with in entrance cylinder cover water jacket of tributary water cavity But water participates in the circulation of cooling system together.
As embodiment: the minimum widith of engine cylinder-body tributary water cavity is 4mm, and the degree of depth is 8mm, the water hole diameter of tributary waterway It is 4mm.

Claims (4)

1., with the engine cylinder-body of outside cooling water cavity, it is characterized in that: the cylinder deck (1) between per cylinder engine On, it is equipped with outside tributary water cavity (2), in engine cylinder, is provided with the water hole (4) corresponding with each tributary water cavity, Water hole is communicated with cylinder body water jacket of engine (3) parallel connection by respective tributary waterway, and the cooling water in the water cavity of tributary is from cylinder body water jacket Side enter, after flowing through the cylinder deck between two cylinders, from opposite side return cylinder body water jacket, tributary water cavity and engine cool System collectively forms closed circulation.
2. according to described in claim 1 with the engine cylinder-body of outside cooling water cavity, it is characterized in that: described tributary water cavity passes through Engine cylinder cap seals with the cylinder liner of cylinder deck.
3. according to described in claim 1 with the engine cylinder-body of outside cooling water cavity, it is characterized in that: described tributary water cavity with send out Motivation cylinder body casts out together.
4. according to described in claim 1 or 3 with the engine cylinder-body of outside cooling water cavity, it is characterized in that: described tributary water cavity Number subtract 1 equal to cylinder sum.
CN201620120157.2U 2016-02-15 2016-02-15 Engine cylinder block with external cooling water cavity Active CN205532911U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620120157.2U CN205532911U (en) 2016-02-15 2016-02-15 Engine cylinder block with external cooling water cavity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620120157.2U CN205532911U (en) 2016-02-15 2016-02-15 Engine cylinder block with external cooling water cavity

Publications (1)

Publication Number Publication Date
CN205532911U true CN205532911U (en) 2016-08-31

Family

ID=56777590

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620120157.2U Active CN205532911U (en) 2016-02-15 2016-02-15 Engine cylinder block with external cooling water cavity

Country Status (1)

Country Link
CN (1) CN205532911U (en)

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