Ventilation pipe structure of oil inlet of oil tank of general gasoline engine generator
By introducing a water collection tank and filter components into the vent pipe, the problem of condensate entering the fuel tank was solved, thereby improving fuel quality and generator performance.
Patent Information
- Application Number
- CN202520399019.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In existing technology, water vapor in oil and gas liquefies to form condensate, which remains in the vent pipe and is not discharged. This causes the condensate to enter the fuel tank and mix with the fuel, reducing fuel quality and affecting generator performance.
A vent pipe structure was designed, including a water tank, a first air pipe, a second air pipe, a filter component, and a drain component. The water tank collects condensate and discharges it using a one-way valve and a drain pipe. Combined with an air filter element, impurities are filtered out to prevent fuel backflow and dust from entering.
It effectively drains condensate, maintains fuel quality, and improves generator performance and operational stability.
Smart Images

Figure CN223739541U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil tank technical field especially relates to a general gasoline generator oil tank oil inlet vent pipe structure. BACKGROUND
[0002] At present, many power equipment such as automobile, diesel engine needs to use oil tank, in the process of oil tank refueling, when almost full, oil is very difficult to fill, not easy to be filled, because the oil tank will form air discontinuity in the upper end of the inner cavity, fuel cannot enter, lead to the phenomenon that fuel is not full but overflows from the fuel inlet, inconvenient to refuel, increase the number of refueling, operation is more troublesome.
[0003] The prior art CN204161106U discloses an oil tank air outlet pipe structure, comprising: a tank body, an oil inlet is arranged on the tank body, an oil cover is arranged on the oil inlet and matched with the oil inlet, an air outlet pipe is arranged in the tank body, an air inlet is arranged on the upper end of the air outlet pipe and communicated with the upper end of the tank body, the upper end of the air outlet pipe is in U-shaped structure, the lower end of the air outlet pipe extends out of the tank body from the bottom of the tank body, and an air outlet is arranged on the lower end of the air outlet pipe.
[0004] For the oil tank air outlet pipe structure of the prior art, water vapor in oil gas will be liquefied when cold, forming condensed water, which exists in the vent pipe, and the prior art does not have a drainage mechanism, so that the condensed water is easy to flow into the oil tank and mix with oil, reducing fuel quality and affecting generator performance. UTILITY MODEL CONTENTS
[0005] The utility model discloses a kind of vent pipe structures of general gasoline generator oil tank oil inlet, solve the problem that the prior art due to water vapor in oil gas will be liquefied when cold, forming condensed water, which exists in the vent pipe, and the prior art does not have a drainage mechanism, so that the condensed water is easy to flow into the oil tank and mix with oil, reducing fuel quality and affecting generator performance.
[0006] In order to achieve the above object, the utility model provides a kind of vent pipe structure of general gasoline generator oil tank oil inlet, including oil tank body, fuel filler pipe and venting component, the fuel filler pipe is fixedly connected with the oil tank body, and it is located in the side of the oil tank body, the venting component includes water tank, first air pipe, second air pipe, filter component and drainage component, the water tank is fixedly connected with the oil tank body, and it is located in the side of the oil tank body, the two ends of the first air pipe are connected with the oil tank body and the water tank respectively, the two ends of the second air pipe are connected with the water tank and the fuel filler pipe respectively, the filter component is installed in the water tank, and the drainage component is installed on the water tank.
[0007] Among them, the venting component further includes first check valve, the first check valve is arranged on the first air pipe, and is located at the end of the first air pipe close to the oil tank body.
[0008] Among them, the filter component includes fixed frame and air filter element, the fixed frame is fixedly connected with the water tank, and is located on the inner wall of the water tank;The air filter element is fixedly installed on the fixed frame, and the first air pipe penetrates the air filter element.
[0009] Among them, the drainage component includes drain pipe and second check valve, the drain pipe is fixedly connected with the water tank, and is located at the bottom of the water tank;The second check valve is arranged on the drain pipe, and is located at the end of the drain pipe close to the water tank.
[0010] Among them, the venting component further includes baffle, the baffle is fixedly installed in the inner wall of the fuel filler pipe, and is located at the side of the fuel filler pipe close to the second air pipe.
[0011] The utility model discloses a kind of vent pipe structure of general gasoline generator oil tank oil inlet, including oil tank body, fuel filler pipe and venting component, the fuel filler pipe is fixedly connected with the oil tank body, and it is located in the side of the oil tank body, the venting component includes water tank, first air pipe, second air pipe, filter component and drainage component, the water tank is fixedly connected with the oil tank body, and it is located in the side of the oil tank body, the two ends of the first air pipe are connected with the oil tank body and the water tank respectively, the two ends of the second air pipe are connected with the water tank and the fuel filler pipe respectively, the filter component is installed in the water tank, and the drainage component is installed on the water tank, solve the problem that existing technology due to water vapor in oil gas can be liquefied when cold, form condensate, exist in vent pipe, and existing technology does not have drainage mechanism, leading to condensate easily flows into oil tank and mixes with oil, reduce fuel quality, affect generator performance. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced.
[0013] Figure 1 It is the overall structure schematic diagram of the air pipe structure of the universal gasoline generator oil tank oil inlet of the utility model.
[0014] Figure 2 It is the structure schematic diagram of the filter member of the utility model.
[0015] Figure 3 It is the structure schematic diagram of the baffle of the utility model.
[0016] In the drawing: 101-oil tank body, 102-filling pipe, 103-water collecting tank, 104-first air pipe, 105-second air pipe, 106-first one-way valve, 107-fixing frame, 108-air filter element, 109-upper chamber, 110-lower chamber, 111-drain pipe, 112-second one-way valve, 113-baffle. DETAILED DESCRIPTION
[0017] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model.
[0018] The embodiments of the present application are:
[0019] Please refer to Figures 1-3 , Figure 1 It is the overall structure schematic diagram of the air pipe structure of the universal gasoline generator oil tank oil inlet of the utility model, Figure 2 It is the structure schematic diagram of the filter member of the utility model, Figure 3 It is the structure schematic diagram of the baffle 113 of the utility model.
[0020] The air pipe structure of the universal gasoline generator oil tank oil inlet of the utility model, including oil tank body 101, filling pipe 102, water collecting tank 103, first air pipe 104, second air pipe 105, first one-way valve 106, fixing frame 107, air filter element 108, upper chamber 109, lower chamber 110, drain pipe 111, second one-way valve 112, baffle 113, solve the prior art because of the water vapor in oil gas can meet the cold liquefaction, form condensate, exist in the air pipe, and the prior art does not have a drainage mechanism, leading to condensate easily flows into the oil tank and mixes with oil, reduces the fuel quality, affects the performance of the generator problem.Can be understood, the foregoing scheme can also be used to improve the generator running movement problem.
[0021] In the embodiment, the oil tank body 101 and the oil filling pipe 102 are all prior art, and the air vent assembly is used to solve the problem that the water vapor in the oil gas is liquefied when it meets cold air, forms condensed water, exists in the air vent pipe, and the prior art does not have a drainage mechanism, so that the condensed water easily flows into the oil tank and mixes with the oil, reduces the fuel quality, and affects the performance of the generator.
[0022] The water tank 103 is fixedly connected with the oil tank body 101 and located on one side of the oil tank body 101, the two ends of the first air pipe 104 are connected with the oil tank body 101 and the water tank 103 respectively, the two ends of the second air pipe 105 are connected with the water tank 103 and the oil filling pipe 102 respectively, the filter member is installed in the water tank 103, the drainage member is installed on the water tank 103, the water tank 103 is a tank body with an internal cavity, is fixedly installed on the top of the oil tank body 101, the two ends of the first air pipe 104 are in communication with the oil tank body 101 and the water tank 103 respectively, one end of the second air pipe 105 is in communication with the water tank 103, and the other end is in communication with the oil filling port of the oil filling pipe 102, the gas in the oil tank body 101 is discharged from the oil filling port of the oil filling pipe 102 through the first air pipe 104, the water tank 103 and the second air pipe 105, and the condensed water is accumulated in the water tank 103 in the process, the drainage member is installed on the bottom of the water tank 103, the condensed water is discharged through the drainage member, the filter member is used for filtering the air to prevent impurities from entering the oil tank body 101 through the first air pipe 104 and the second air pipe 105, and the air vent assembly can discharge the condensed water, solve the problem that the water vapor in the oil gas is liquefied when it meets cold air, forms condensed water, exists in the air vent pipe, and the prior art does not have a drainage mechanism, so that the condensed water easily flows into the oil tank and mixes with the oil, reduces the fuel quality, and affects the performance of the generator.
[0023] Secondly, the first one-way valve 106 is arranged on the first air pipe 104 and located at one end of the first air pipe 104 close to the oil tank body 101, the first one-way valve 106 is arranged between the first air pipe 104 and the oil tank body 101, the first one-way valve 106 can only pass in one direction, the gas can enter the oil tank body 101 from the first air pipe 104, and the oil in the oil tank body 101 cannot enter the first air pipe 104, and the first one-way valve 106 is used to prevent the fuel from flowing back to the first air pipe 104.
[0024] Meanwhile, the fixed frame 107 is fixedly connected with the water collecting tank 103 and located on the inner wall of the water collecting tank 103; the air filter core 108 is fixedly installed on the fixed frame 107, the first air pipe 104 penetrates through the air filter core 108, the fixed frame 107 is annular, provided to be installed on the inner wall of the water collecting tank 103 and used for fixing the air filter core 108, the air filter core 108 can filter impurities in air, the air filter core 108 divides the inside of the water collecting tank 103 into two chambers, the end of the second air pipe 105 extends into the upper chamber 109, the end of the first air pipe 104 penetrates through the air filter core 108 and extends into the lower chamber 110, air enters the water collecting tank 103 from the second air pipe 105 and needs to pass through the air filter core 108 to enter the first air pipe 104, thereby realizing the filtration of air.
[0025] In addition, the drain pipe 111 is fixedly connected with the water collecting tank 103 and located at the bottom of the water collecting tank 103; the second one-way valve 112 is arranged on the drain pipe 111 and located at the end of the drain pipe 111 close to the water collecting tank 103, the drain pipe 111 is in communication with the bottom of the water collecting tank 103 and used for discharging condensate, the second one-way valve 112 is arranged between the water collecting tank 103 and the drain pipe 111, so that the condensate can be discharged through the drain pipe 111 and air cannot enter the water collecting tank 103 through the drain pipe 111, thereby realizing the discharge of the condensate and avoiding the air entering the water collecting tank 103 through the drain pipe 111.
[0026] Finally, the baffle 113 is fixedly installed on the inner wall of the oil filling pipe 102 and located on the side of the oil filling pipe 102 close to the second air pipe 105, the baffle 113 is obliquely installed on the inner wall of the oil filling pipe 102 and arranged at the air inlet of the second air pipe 105, thereby avoiding the dust falling into the second air pipe 105 during oil filling.
[0027] In the embodiment, the water tank 103 is fixed on the top of the oil tank body 101, the first air pipe 104 is connected between the oil tank body 101 and the water tank 103, the second air pipe 105 is connected between the water tank 103 and the oil filler pipe 102, the first one-way valve 106 is arranged on the first air pipe 104 close to the oil tank body 101, the fixed frame 107 is arranged on the inner wall of the water tank 103, the air filter 108 is fixed on the fixed frame 107, the first air pipe 104 penetrates the air filter 108, the drain pipe 111 is connected on the bottom of the water tank 103, the second one-way valve 112 is arranged on the drain pipe 111 close to the water tank 103, the baffle 113 is arranged on the inner wall of the oil filler pipe 102 close to the second air pipe 105, the gas in the oil tank body 101 is discharged from the oil filler pipe 102 through the first air pipe 104, the water tank 103 and the second air pipe 105, the condensed water is accumulated in the water tank 103 during the process, and the condensed water is discharged from the drain pipe 111 on the bottom of the water tank 103, the air filter 108 filters the air entering the first air pipe 104 to avoid impurities entering the oil tank body 101, the first one-way valve 106 prevents the fuel from flowing back to the first air pipe 104, and the baffle 113 prevents dust from falling into the second air pipe 105 during oil filling, thereby solving the problem that the condensed water is formed due to the water vapor in the oil gas being liquefied when meeting cold, the condensed water exists in the air pipe, the existing technology does not have a water drainage mechanism, the condensed water is easy to flow into the oil tank and mix with the oil, the fuel quality is reduced, and the performance of the generator is affected.
[0028] The above disclosure is only one or more preferred embodiments of the present application, which cannot limit the scope of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.
Claims
1. A vent pipe structure of a universal gasoline generator oil tank inlet, comprising an oil tank body and a refueling pipe, the refueling pipe being fixedly connected with the oil tank body and located at one side of the oil tank body, characterized in that, it further comprises a vent assembly; the vent assembly comprises a water tank, a first air pipe, a second air pipe, a filter member and a drainage member, the water tank is fixedly connected with the oil tank body and located at one side of the oil tank body, two ends of the first air pipe are connected with the oil tank body and the water tank respectively, two ends of the second air pipe are connected with the water tank and the refueling pipe respectively, the filter member is installed in the water tank, and the drainage member is installed on the water tank.
2. The vent pipe structure of the universal gasoline generator oil tank inlet according to claim 1, characterized in that, the vent assembly further comprises a first one-way valve, the first one-way valve is arranged on the first air pipe and located at one end of the first air pipe close to the oil tank body.
3. The vent pipe structure of the universal gasoline generator oil tank inlet according to claim 1, characterized in that, the filter member comprises a fixing frame and an air filter element, the fixing frame is fixedly connected with the water tank and located on the inner wall of the water tank, and the air filter element is fixedly installed on the fixing frame, and the first air pipe penetrates through the air filter element.
4. The vent pipe structure of the universal gasoline generator oil tank inlet according to claim 1, characterized in that, the drainage member comprises a drainage pipe and a second one-way valve, the drainage pipe is fixedly connected with the water tank and located at the bottom of the water tank, and the second one-way valve is arranged on the drainage pipe and located at one end of the drainage pipe close to the water tank.
5. The vent pipe structure of the universal gasoline generator oil tank inlet according to claim 1, characterized in that, the vent assembly further comprises a baffle, the baffle is fixedly installed on the inner wall of the refueling pipe and located at one side of the refueling pipe close to the second air pipe.
Citation Information
Patent Citations
Oil tank exhaust pipe structure
CN204161106U