Piston cooling nozzle assembly

Abstract

The utility model relates to the technical field of nozzles, and discloses a piston cooling nozzle assembly which comprises a main body mechanism, an oil injection positioning mechanism and a feed filtering mechanism, the oil injection positioning mechanism is located on the surface of the main body mechanism, the oil injection filtering mechanism is located at the bottom of the main body mechanism, and the main body mechanism comprises a valve element assembly. A positioning rod is fixedly connected to the surface of the valve element assembly, a valve element is arranged in the valve element assembly, a steel ball is arranged in the valve element, a spring is fixedly connected to the top of the steel ball, a T-shaped plug is arranged in the spring, and an oil outlet is formed in the valve element assembly. The positioning rod is arranged, the integral shell and the valve element assembly are installed in a matched mode through cooperation of the positioning rod and the installation groove so as to position the nozzle assembly, the positioning pin is arranged to position integral installation so as to prevent the nozzle assembly from deviating, and the filter screen is arranged to filter oil entering the oil inlet bin. And impurities are prevented from entering the valve element assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to a piston cooling nozzle assembly. Background Art

[0002] As engine performance continues to improve, the heat load on the piston assembly has also increased accordingly. In order to prevent the engine piston assembly from failing due to high temperature, many gasoline engines now use piston cooling nozzles. This nozzle can spray cooling oil to effectively cool the piston. At present, there are two main types of piston cooling nozzles, namely combined and integrated. Due to the limited internal space of the engine and to facilitate daily maintenance and replacement work, most engines choose combined piston cooling nozzles. This combined nozzle consists of a valve core assembly and a nozzle assembly. The valve core assembly further includes a valve core, a steel ball, a spring and a spring plug. The nozzle assembly is composed of a housing, a flange, a sealing ring, a locating pin and a welded nozzle. This design structure is both practical and easy to maintain, allowing the engine to operate more stably in a high temperature environment.

[0003] When installing inside the engine, the internal nozzle is easily vibrated away due to the vibration of the engine, resulting in the sprayed oil not reaching the inside of the piston evenly, causing the temperature inside the piston to continue to increase and cause damage. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a piston cooling nozzle assembly.

[0005] The utility model is implemented by the following technical scheme: a piston cooling nozzle assembly, comprising a main body mechanism, an oil injection positioning mechanism and a feed filter mechanism, wherein the oil injection positioning mechanism is located on the surface of the main body mechanism, and the oil injection filter mechanism is located at the bottom of the main body mechanism;

[0006] The main body mechanism includes a valve core assembly, a positioning rod is fixedly connected to the surface of the valve core assembly, the valve core assembly includes a valve core inside, a steel ball is arranged inside the valve core, a spring is fixedly connected to the top of the steel ball, a T-shaped plug is arranged inside the spring, and an oil outlet is opened inside the valve core assembly.

[0007] Through the above technical solution, the positioning rod is provided to enable positioning installation when the nozzle is installed.

[0008] As a further improvement of the above scheme, the number of the positioning rods is set to two, and the two positioning rods are symmetrically and evenly distributed on both sides of the center of the valve core assembly surface, the steel ball is arranged at the bottom of the inner side of the valve core, the top of the spring is arranged on the surface of the T-type plug, the top of the T-type plug is fixedly connected to the top of the inner side of the valve core, and the oil outlet is arranged at the center position of the two positioning rods.

[0009] Through the above technical solution, a T-type plug is provided inside the valve core assembly to provide a positioning function when the spring moves upward.

[0010] As a further improvement of the above scheme, the fuel injection positioning mechanism includes a shell, a nozzle assembly is fixedly connected to the surface of the shell, a flange is fixedly connected to the bottom of the shell, a positioning pin is fixedly connected to the surface of the flange, a sealing ring is fixedly connected to the bottom of the flange, and a positioning installation groove is opened inside the shell.

[0011] Through the above technical solution, by providing the positioning pin and the positioning installation groove, the positioning groove provides positioning outside the shell, and the positioning installation groove provides positioning inside, so that the overall component does not deviate.

[0012] As a further improvement of the above scheme, the connection position between the nozzle assembly and the shell is connected to the oil outlet, the flange is concentric with the shell, the number of the positioning pins is set to two, and the two positioning pins are symmetrically and evenly distributed on both sides with respect to the center of the flange surface, the number of the positioning mounting grooves is set to two, and the two positioning mounting grooves are symmetrically and evenly distributed on both sides with respect to the center of the shell surface, and the positioning rod is arranged inside the positioning mounting groove.

[0013] As a further improvement of the above scheme, the feed filtering mechanism includes an oil inlet bin, an oil inlet is provided at the bottom of the oil inlet bin, a filter screen is fixedly connected to the inside of the oil inlet bin, and filter holes are provided inside the filter screen.

[0014] According to the above technical solution, a filter is arranged inside the oil inlet bin, so that the oil is filtered when entering the valve core, thereby preventing impurities from entering the interior and causing overall damage to the interior.

[0015] As a further improvement of the above scheme, the oil inlet tank is fixedly connected to the bottom of the valve core assembly, the filter screen is arranged at the bottom of the steel ball, and the number of the filter holes is set to be several, and the several filter holes are evenly distributed on the filter screen surface symmetrically around the center of the filter screen surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a filter screen, and the oil enters the bottom of the steel ball after being filtered through the filter screen. When the pressure increases, the steel ball is pushed out by the oil, and the steel ball drives the spring to move upward. The oil enters the valve core from the bottom of the steel ball, and then enters the nozzle assembly through the oil outlet, and then is sprayed out to cool and lubricate the piston.

[0018] The utility model arranges a positioning rod, cooperates with the positioning rod and the installation groove to cooperate and install the entire shell and the valve core assembly to position the nozzle assembly, and arranges a positioning pin to position the entire installation to prevent the nozzle assembly from deflecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the integral valve core assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall internal structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the surface structure of the fuel injection positioning mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the bottom structure of the integral oil injection positioning mechanism of the utility model.

[0024] Description of main symbols:

[0025] 1. Main body; 101. Valve core assembly; 102. Positioning rod; 103. Valve core; 104. Steel ball spring; 105. Spring; 106. T-type plug; 107. Oil outlet; 2. Oil injection positioning mechanism; 201. Shell; 202. Nozzle assembly; 203. Flange; 204. Positioning pin; 205. Sealing ring; 206. Positioning installation groove; 3. Feed filter mechanism; 301. Oil inlet tank; 302. Oil inlet; 303. Filter. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Embodiment 1:

[0028] Please combine Figure 1-4 In this embodiment, a piston cooling nozzle assembly includes a main body mechanism 1, an oil injection positioning mechanism 2 and a feed filter mechanism 3, wherein the oil injection positioning mechanism 2 is located on the surface of the main body mechanism 1, and the feed filter mechanism 3 is located at the bottom of the main body mechanism 1;

[0029] The main body mechanism 1 includes a valve core 103 assembly 101, a positioning rod 102 is fixedly connected to the surface of the valve core 103 assembly 101, the valve core 103 assembly 101 includes a valve core 103 inside, a steel ball 104 is arranged inside the valve core 103, a spring 105 is fixedly connected to the top of the steel ball 104, a T-shaped plug 106 is arranged inside the spring 105, and an oil outlet 107 is opened inside the valve core 103 assembly 101.

[0030] The number of positioning rods 102 is set to two, and the two positioning rods 102 are symmetrically and evenly distributed on both sides of the center of the surface of the valve core 103 component 101, the steel ball 104 is set at the bottom of the inner side of the valve core 103, the top of the spring 105 is set on the surface of the T-type plug 106, the top of the T-type plug 106 is fixedly connected to the top of the inner side of the valve core 103, and the oil outlet 107 is set at the center position of the two positioning rods 102.

[0031] The fuel injection positioning mechanism 2 includes a shell 201, a nozzle assembly 202 is fixedly connected to the surface of the shell 201, a flange 203 is fixedly connected to the bottom of the shell 201, a positioning pin 204 is fixedly connected to the surface of the flange 203, a sealing ring 205 is fixedly connected to the bottom of the flange 203, and a positioning installation groove 206 is opened inside the shell 201.

[0032] The connection position between the nozzle assembly 202 and the shell 201 is connected to the oil outlet 107, the flange 203 is concentric with the shell 201, the number of positioning pins 204 is set to two, and the two positioning pins 204 are symmetrically evenly distributed on both sides with respect to the center of the surface of the flange 203, the number of positioning mounting grooves 206 is set to two, and the two positioning mounting grooves 206 are symmetrically evenly distributed on both sides with respect to the center of the surface of the shell 201, and the positioning rod 102 is arranged inside the positioning mounting groove 206.

[0033] The feed filtering mechanism 3 comprises an oil inlet bin 301 , an oil inlet port 302 is provided at the bottom of the oil inlet bin 301 , a filter screen 303 is fixedly connected to the inside of the oil inlet bin 301 , and a filter hole 304 is provided inside the filter screen 303 .

[0034] The oil inlet tank 301 is fixedly connected to the bottom of the valve core 103 assembly 101, the filter screen 303 is arranged at the bottom of the steel ball 104, and the number of filter holes 304 is arranged, and the filter holes 304 are evenly distributed on the surface of the filter screen 303 symmetrically around the center of the surface of the filter screen 303.

[0035] The implementation principle of a piston cooling nozzle assembly in the embodiment of the present application is as follows: when piston cooling is required, oil enters from the oil inlet hole, is filtered through the filter screen 303, and then enters the bottom of the steel ball 104. When the pressure increases, the steel ball 104 is pushed out by the oil, and the steel ball 104 drives the spring 105 to move upward. The oil enters the valve core 103 from the bottom of the steel ball 104, and then enters the nozzle assembly 202 from the oil outlet 107, and then is sprayed out to cool and lubricate the piston. The overall housing and the valve core 103 assembly 101 are matched and installed by the positioning rod 102 and the positioning installation groove 206 to position the nozzle assembly 202, and the overall installation is positioned by the positioning pin 204 to prevent the nozzle assembly 202 from shifting.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A piston cooling nozzle assembly, Features: It comprises a main body mechanism (1), an oil injection positioning mechanism (2) and a feed filter mechanism (3), wherein the oil injection positioning mechanism (2) is located on the surface of the main body mechanism (1), and the feed filter mechanism (3) is located at the bottom of the main body mechanism (1); The main body mechanism (1) comprises a valve core (103) component (101), a positioning rod (102) is fixedly connected to the surface of the valve core (103) component (101), the valve core (103) component (101) comprises a valve core (103) inside, a steel ball (104) is arranged inside the valve core (103), a spring (105) is fixedly connected to the top of the steel ball (104), a T-shaped plug (106) is arranged inside the spring (105), and an oil outlet (107) is opened inside the valve core (103) component (101).

2. A piston cooling nozzle assembly as claimed in claim 1, Features: The number of the positioning rods (102) is set to two, and the two positioning rods (102) are symmetrically evenly distributed on both sides of the center of the surface of the valve core (103) component (101), the steel ball (104) is arranged on the bottom of the inner side of the valve core (103), the top of the spring (105) is arranged on the surface of the T-shaped plug (106), the top of the T-shaped plug (106) is fixedly connected to the top of the inner side of the valve core (103), and the oil outlet (107) is arranged at the center position of the two positioning rods (102).

3. A piston cooling nozzle assembly as claimed in claim 1, Features: The oil injection positioning mechanism (2) comprises a shell (201), a nozzle assembly (202) is fixedly connected to the surface of the shell (201), a flange (203) is fixedly connected to the bottom of the shell (201), a positioning pin (204) is fixedly connected to the surface of the flange (203), a sealing ring (205) is fixedly connected to the bottom of the flange (203), and a positioning installation groove (206) is provided inside the shell (201).

4. A piston cooling nozzle assembly as claimed in claim 3, Features: The connection position between the nozzle assembly (202) and the housing (201) is connected to the oil outlet (107); the flange (203) is concentric with the housing (201); the number of the positioning pins (204) is set to two; the two positioning pins (204) are evenly distributed on both sides symmetrically with respect to the center of the surface of the flange (203); the number of the positioning installation grooves (206) is set to two; the two positioning installation grooves (206) are evenly distributed on both sides symmetrically with respect to the center of the surface of the housing (201); and the positioning rod (102) is arranged inside the positioning installation groove (206).

5. A piston cooling nozzle assembly as claimed in claim 1, Features: The feed filtering mechanism (3) comprises an oil inlet bin (301), the bottom of which is provided with an oil inlet port (302), a filter screen (303) fixedly connected to the inside of the oil inlet bin (301), and a filter hole (304) provided inside the filter screen (303).

6. A piston cooling nozzle assembly as claimed in claim 5, Features: The oil inlet bin (301) is fixedly connected to the bottom of the valve core assembly (101), the filter screen (303) is arranged at the bottom of the steel ball (104), and the number of the filter holes (304) is set to be a plurality, and the plurality of filter holes (304) are evenly distributed on the surface of the filter screen (303) symmetrically around the center of the surface of the filter screen (303).

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