2136 results about "Crankcase" patented technology

The invention discloses an outboard engine box bearing press-fitting device, and relates to the technical field of bearing mounting equipment, the outboard engine box bearing press-fitting device comprises an equipment underframe, a press-fitting working table is arranged at the upper end of the equipment underframe, a press-fitting bottom plate is mounted at the upper end of the press-fitting working table, and a box press-fitting tray is detachably mounted on the press-fitting bottom plate; a supporting frame is installed at the upper end of the press-fitting working table at the rear portion of the press-fitting bottom plate, an installation frame is installed at the front end of the supporting frame, a servo lifting electric cylinder is installed on the installation frame, a lifting plate is installed at the output end of the servo lifting electric cylinder, a box press-fitting quick-change head is detachably installed at the lower end of the lifting plate, and a press-fitting program operation panel is installed at one end of the installation frame. According to the device, the servo lifting electric cylinder is electrically controlled through the press-fitting program operation panel, the box body press-fitting quick-change head is driven to act, the device can quickly and accurately press a bearing into a crankshaft box body, the box body press-fitting quick-change head can be quickly replaced according to the crankshaft box body of the corresponding model, and the production efficiency is greatly improved.

The invention discloses a crankcase water removal system, a hydrogen engine and a water removal control method. Belongs to the technical field of hydrogen engines, the crankcase water removal system is used for the hydrogen engine, the crankcase water removal system comprises a gas supplementing pipeline, a gas outlet pipeline and an oil-gas separator, at least part of the gas supplementing pipeline is arranged in the hydrogen engine, and one end of the gas supplementing pipeline is suitable for being communicated with the atmosphere; the oil-gas separator is arranged on the gas outlet pipeline, one end of the gas outlet pipeline is suitable for being communicated with the crankcase, the other end of the gas outlet pipeline is suitable for being communicated with a gas inlet system of the hydrogen engine, and the gas supplementing pipeline can supplement air into the crankcase so as to reduce the concentration of water vapor in the crankcase. And air can be heated by the hydrogen engine when entering the crankcase through the air supplementing pipeline, so that the risk that water vapor in the crankcase is condensed into liquid water is reduced, and the risk that oil in the crankcase is emulsified is reduced.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 10 mass% mono-C9-alkyl substituted diphenyl amine, and 90 to 100 mass% di-C9-alkyl substituted phenyl amines based upon the weight of the mono- and di-C9-alkyl substituted phenyl amines, preferably where tri-C9-alkyl substituted phenyl amines are minimized and ortho substituted di-C9-alkyl substituted phenyl amines are minimized.

The invention discloses a piston type compressor driven by liquid pressure, which is characterized in that hydraulic and gas compression components are integrated in a cylinder body, a crankshaft rotates to drive a hydraulic piston, then a gas piston is driven by utilizing the characteristic that liquid cannot be compressed, the upper part of the gas piston is filled with sealing liquid, a gap of a sealing ring is filled, and gas leakage is reduced. According to the structure, lubricating and hydraulic media can be combined into a whole, hydraulic oil is stored through the crankcase and serves as the lubricating media, and the equipment size is further reduced in the mode that an oil pump is arranged inside. And meanwhile, a multi-stage compression form can be combined, so that the discharge pressure is further improved. The invention can be used for high-pressure hydrogen filling piston type compressors of gas stations and energy storage stations, and can also be used in the field of other high-pressure and ultrahigh-pressure gas compressors.

The CVT cooling system of the engine comprises a CVT, a left crankcase body and a left crankcase cover, a CVT cavity is formed between the left crankcase body and the left crankcase cover, the CVT is assembled in the CVT cavity, a shoe block component of a driven wheel in the CVT is located on the side of the left crankcase body, a breathing groove outer cover plate is arranged on the left crankcase cover, and the breathing groove outer cover plate is arranged on the left crankcase cover. The breathing groove outer cover plate is provided with a first main air inlet, a second main air inlet and a first auxiliary air inlet, the left crankcase cover is provided with a filter screen assembly, the left crankcase cover is provided with a third main air inlet and a second auxiliary air inlet, the breathing groove outer cover plate is provided with blocking ribs, and part of cooling air enters a CVT cavity sequentially through the first auxiliary air inlet and the second auxiliary air inlet. In order to simplify the structure, reduce the manufacturing cost and effectively reduce the risk that muddy water enters the filter screen assembly, a blocking rib is arranged on the side, close to the filter screen assembly, of the first main air inlet of the breathing groove outer cover plate, and the muddy water is effectively prevented from being sprayed to the filter screen assembly.

The invention discloses a diaphragm compressor, which belongs to the technical field of diaphragm compressors, and is characterized in that a second piston is additionally arranged on a piston assembly on the basis of the structure of the existing diaphragm compressor, the second piston is arranged on a piston rod, and the second piston axially reciprocates in a middle body. When the second piston moves rightwards, gas in the first cavity begins to expand, meanwhile, the middles of the diaphragms are vacuumized to enable the three diaphragms to be attached, the volume of the gas cavity is increased, the air suction amount is increased, and therefore the problem that the volume efficiency of the diaphragm compressor is poor due to diaphragm separation is solved. The oil pool of the crankcase is vacuumized, bubbles contained in oil in the oil pool of the crankcase are removed, the elasticity modulus of hydraulic oil is improved, the influence of gas contained in the hydraulic oil on the actual volume efficiency of the high-pressure diaphragm compressor is avoided, and the volume efficiency of the diaphragm compressor is effectively improved.

Apparatuses including coalescing filter are discussed and shown. The coalescing filter can optionally include: a filter media; a central core defining a central cavity, the central core positioned within the filter media; a first end cap; a coupling assembly attached to and extending outward from the first end cap, wherein the coupling assembly is configured to couple with a housing to position the coalescing filter within the housing; and a second end cap opposing the first end cap.

The utility model discloses a motorcycle engine crankshaft box body with an oil separation chamber, which comprises a crankshaft box body formed by connecting a left crankshaft box body and a right crankshaft box body, crankshaft mounting holes and balance shaft mounting holes are arranged on the left crankshaft box body and the right crankshaft box body, and the crankshaft mounting holes and the balance shaft mounting holes are distributed in a pairwise corresponding mode. An oil collecting chamber is arranged at the lower end in the crankcase body, and the balance shaft mounting hole is arranged close to the maximum oil liquid level position of the oil collecting chamber; the bottom of the oil collection chamber is provided with an oil separation chamber which is arranged close to the balance shaft mounting hole, the upper end of the oil separation chamber is close to the maximum oil liquid height of the oil collection chamber, and one side, far away from the balance shaft mounting hole, of the oil separation chamber is provided with an oil inlet hole; an engine oil filter screen is arranged in the oil separation cavity, and an oil guide channel with one end communicated with the oil separation cavity and the other end communicated with an oil inlet of the engine oil pump is arranged on the side of the oil separation cavity.

The invention relates to a diesel engine oil pan engine oil supply device and method, and relates to the technical field of diesel engines, the device comprises a filter element rotationally arranged in an oil pool body at one end of the bottom of an oil pan, a first driving mechanism is arranged above the filter element, and the first driving mechanism is used for driving the filter element to rotate through rotation of a crankshaft in an upper crankcase; purifying the engine oil through centrifugal separation; the device further comprises an oil supply pipe, one end of the oil supply pipe extends to the position below the filter element, the other end of the oil supply pipe extends to the crankshaft, and an oil supply pump used for conveying purified engine oil into the lubricating system is arranged on the oil supply pipe. The device further comprises a particle storage ring sleeving the upper part of the filter element. According to the oil supply device, the functions of lubricating additive particle storage, discharging, adding and the like are integrated in the oil pan and are tightly combined with the engine oil purification function, an efficient oil supply system is formed, the working efficiency and reliability of the whole lubricating system are improved, and the lubricating performance of engine oil can be greatly improved by adding the lubricating additive particles.

The invention provides a ribbon loom driven by horizontally opposed crankshafts, which comprises a base rack provided with a crankcase, a crankshaft driving assembly is arranged in the crankcase and drives a heald frame opening mechanism through a connecting rod, and a cloth tape winding mechanism, a weaving mechanism and a weft yarn feeding mechanism are further arranged above the crankcase. The crankshaft driving assembly comprises a rear crankshaft set and a front crankshaft set which are horizontally and oppositely arranged, a first synchronous wheel and a second synchronous wheel in the rear crankshaft set are connected through a rear main shaft piece, and a driving belt wheel is installed on a motor piece and connected with the first synchronous wheel through a first synchronous belt. The front crankshaft set and the rear crankshaft set are driven to rotate synchronously, all heald frame openings in the heald frame opening mechanism operate synchronously according to the preset opening rhythm, openings are formed through the heald frame set, the openings reach the weaving mechanism to be woven into cloth belts, and then the cloth belts are wound into a container through the winding mechanism. The vibration and noise of the machine are reduced, and the overall processing efficiency of the ribbon loom is improved.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 10 mass% mono-C9-alkyl substituted diphenyl amine, and 90 to 100 mass% di-C9-alkyl substituted phenyl amines based upon the weight of the mono- and di-C9-alkyl substituted phenyl amines, preferably where tri-C9-alkyl substituted phenyl amines are minimized and ortho substituted di-C9-alkyl substituted phenyl amines are minimized.

Apparatuses, systems and methods are disclosed for separating oil from a blow-by gas of an engine. An example includes a method that includes passing the blow-by gas to a first oil separating apparatus and a second oil separating apparatus, wherein the first oil separating apparatus and the second oil separating apparatus are physically coupled together along interfacing surfaces and in fluid communication with one another as an array, separating the blow-by gas by passing the blow-by gas through respective filters of the first oil separating apparatus and the second oil separating apparatus, removing the oil from the blow-by gas with the respective filters and recombining the blow-by gas after passing from the respective filters; passing the blow-by gas as a single flow stream from the first oil separating apparatus and the second oil separating apparatus.

The invention discloses a crankcase air supply system, a crankcase air supply control method, a controller and a vehicle, and relates to the field of hydrogen internal combustion engines. The crankcase air supply system comprises a first air supply pipeline communicating with an air outlet of a supercharger and a first end of a four-way valve, and a second air supply pipeline communicating with an air outlet of a pressurized air storage tank and a second end of the four-way valve; the air outlet of the air filter of the hydrogen internal combustion engine is communicated with the third end of the four-way valve, the four-way valve is communicated with the air supply port of the crankcase, and when the hydrogen internal combustion engine is in a high-load and high-moisture state, the opening degree of the first flow adjusting valve is controlled to be larger than that of the second flow adjusting valve. The opening degree of the second flow adjusting valve is larger than that of the third flow adjusting valve. The method is implemented on the basis of the supercharger, the pressurized gas storage tank and the air filter, and the opening degree of each flow regulating valve is regulated, so that the inlet gas water content is reduced while the gas supplementing requirement of the crankcase is met, and the aim of improving the operation reliability of the hydrogen internal combustion engine is achieved.

The invention discloses a ventilation system of an engine, a control method of the ventilation system of the engine and a vehicle. A pressure sensor is arranged in a crankcase; the fan and the first hydrogen concentration sensor are arranged on the first branch; the adsorption part is arranged on the second branch and used for adsorbing hydrogen, one end of the first branch is suitable for being connected with a crankcase, the other end of the first branch is connected with the second branch and the third branch, the first branch selectively communicates with the second branch or the third branch, and the second branch and the third branch are connected in parallel and suitable for being connected with an intake manifold. Therefore, when the pressure in the crankcase is too large, gas in the crankcase can be pumped out through the fan, and the first branch and the second branch can be communicated to reduce the hydrogen concentration of the gas through the adsorption part, so that the probability of risks of explosion, combustion and the like caused by too much hydrogen in the crankcase can be reduced; the use safety of the engine is improved, and the extracted gas can flow back to the intake manifold, so that environmental pollution is avoided.

The invention provides a blow-by gas backflow device. The blow-by gas backflow device comprises a first passage, a second passage, a third passage, a first check valve and a second check valve. The first to third passages allow a portion of the intake passage downstream of the throttle valve, a portion of the intake passage downstream of the intercooler, and a portion of the intake passage upstream of the compressor to communicate with the inside of the crankcase. In the first passage, the first check valve is configured so as to allow gas to flow from the inside of the crankcase to the intake passage, and so as to restrict the gas from flowing from the intake passage to the inside of the crankcase. In the second passage, a second check valve allows the gas to flow from the intake passage to the inside of the crankcase, and restricts the gas from flowing from the inside of the crankcase to the intake passage.

The utility model discloses an oiled two-stage air compressor and a vehicle. The oiled two-stage air compressor comprises an oil pump, a crankshaft, a low-pressure piston connecting rod assembly and a high-pressure piston connecting rod assembly, wherein the crankshaft is used for connecting the oil pump with a power device in a transmission manner; when the oiled two-stage air compressor is in a running state, the low-pressure piston connecting rod assembly and the high-pressure piston connecting rod assembly are driven by the crankshaft to do reciprocating motion, and the contact faces, connected with the crankshaft, of the low-pressure piston connecting rod assembly and the high-pressure piston connecting rod assembly are provided with lubricating oil sucked through an oil pump. The two-stage supercharging structure is adopted, external lubricating oil pipes are removed, meanwhile, the crankcase and the oil tank are designed in an integrated mode, and therefore sealing faces are reduced, the pipeline leakage risk is effectively reduced, and high efficiency and saving are achieved.

The invention relates to the technical field of hydrogen engines, and particularly discloses a hydrogen engine crankcase pipeline hydrogen concentration control method, device and system.The method comprises the steps that the hydrogen concentration in a crankcase ventilation pipeline in the current period, the mixed gas flow in the crankcase ventilation pipeline and the air flow at the front end of an air inlet header pipe are obtained; then the hydrogen concentration of the rear end of the gas inlet main pipe in the current period is calculated; the hydrogen concentration of the rear end of the intake manifold in the current period is compared with a hydrogen concentration threshold value, and the actual air-fuel ratio of the hydrogen engine in the current period is calculated according to a comparison result; and when the actual air-fuel ratio of the hydrogen engine in the current period is inconsistent with the required air-fuel ratio, the flow of hydrogen sprayed by the hydrogen nozzle in the next period is adjusted, so that the actual air-fuel ratio of the hydrogen engine in the next period reaches the required air-fuel ratio. The risk that high-concentration hydrogen mixed gas explodes in the turbocharger can be eliminated, meanwhile, the air-fuel ratio of the hydrogen engine is accurately controlled, and the risks of preignition and detonation are reduced.

A motorcycle with a single transmission breather that is mounted over the transmission case. Crank case gas passes through the breather. Oil separated from the breather drains back to a cavity under the breather. Gases separated in the breather travel through a breather hose to an airbox. The breather utilizes a sloped incline in order to prevent oil that separates out from pooling.

The utility model discloses a ventilation system of a crankcase, an engine and a vehicle. The ventilation system of the crankcase comprises the crankcase and a ventilation device, the venturi valve is provided with a first gas inlet, a first gas outlet and a desorption port; the supercharger is provided with a second air inlet and a second air outlet which are communicated with each other, the second air inlet is communicated with the external atmosphere, the second air outlet is communicated with the first air inlet, and the first air outlet is communicated with the second air inlet. Therefore, the first air inlet is communicated with the second air outlet, so that the pressure of the first air inlet is the same as that of the second air outlet, and the first air outlet is communicated with the second air inlet, so that the pressure of the first air outlet is the same as that of the second air inlet, and the supercharger can provide driving pressure for the Venturi valve; therefore, the ventilation system of the crankcase can adjust the pressure in the crankcase more accurately.

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 10 mass % mono-C9-alkyl substituted diphenyl amine, and 90 to 100 mass % di-C9-alkyl substituted phenyl amines based upon the weight of the mono- and di-C9-alkyl substituted phenyl amines, preferably where tri-C9-alkyl substituted phenyl amines are minimized and ortho substituted di-C9-alkyl substituted phenyl amines are minimized.

The invention discloses a control method and device for a crankcase air supply system of a hydrogen energy engine and a vehicle, and relates to the technical field of vehicles. The method comprises the steps that the load of the hydrogen energy engine and the hydrogen concentration in a crankcase are obtained; under the condition that the load of the hydrogen energy engine is larger than or equal to a first load threshold value, the air supply amount of the crankcase is determined according to the load of the hydrogen energy engine, the hydrogen concentration in the crankcase and the air leakage amount of the hydrogen energy engine; the opening degree of the electromagnetic valve is determined according to the air supply amount and the pressure value of the supercharger; and controlling the electromagnetic valve according to the opening degree of the electromagnetic valve so as to remove moisture in the crankcase. Therefore, moisture in the crankcase can be removed, the problem of engine oil emulsification caused by high moisture in the crankcase of the hydrogen engine can be avoided to a certain extent, and then the safety of an engine lubricating system is guaranteed.

The invention discloses a supercharged engine assembly and a vehicle. The supercharged engine assembly comprises a Venturi tube, a function channel I and a function channel II. The functional channel I is used for communicating an oil-gas separation gas outlet of the engine to the throat position of the Venturi tube; a diffusion section of the Venturi tube is communicated to the rear side of the air filter and is positioned on the front side of an air inlet of the supercharger; the inlet section of the Venturi tube is communicated to the rear side of the air outlet of the supercharger through a functional channel II; a valve A is arranged on the function channel I, a valve B is arranged on the function channel II, and the valve A and the valve B are controlled to be opened and closed so that the pressure in a crankcase of an engine can be controlled within a preset range. On the premise that the cost can be controlled, the pressure of the crankcase of the supercharged engine can be effectively controlled within a set pressure range through some means.

The utility model belongs to the technical field of crankcase production and machining, and particularly relates to a crankcase body forming die which comprises a workbench. A lower die is mounted on the workbench; two auxiliary devices are mounted in the workbench; the two auxiliary devices are arranged on the two sides of the lower die. One auxiliary device is connected with a driving motor; the auxiliary device comprises a driving shaft; two extrusion wheels are mounted on the driving shaft; the driving motor drives the driving shaft to rotate, the knocking rod is reset by the spring after knocking is completed, so that repeated knocking is performed, a pressed product in the lower mold vibrates, the pressed product in the lower mold vibrates due to the knocking action of the knocking assembly, and the vibration is beneficial to breaking the adhesive force between the product and the mold, so that the pressing quality of the pressed product is improved. Compared with traditional direct pulling-out or mechanical ejection, the mode is more effective, the resistance during demolding is reduced, and the demolding efficiency and success rate are improved.

The utility model provides a transmission mechanism of an air compressor, and belongs to the technical field of air compressors. The technical problem that the temperature in an existing crankcase is prone to rising is solved. A transmission mechanism of an air compressor comprises a crankcase internally provided with a containing cavity, a driving motor is fixedly connected to the crankcase, the driving motor comprises a motor shaft, one end of the motor shaft extends into the containing cavity, air cylinders are fixedly arranged on the two sides, perpendicular to the driving motor, of the crankcase respectively, two eccentric wheels are fixedly connected to the motor shaft, and the two eccentric wheels are fixedly connected to the crankshaft. The two eccentric wheels are fixedly sleeved with bearings respectively, the two bearings are fixedly sleeved with connecting rods respectively, the ends, away from the motor shaft, of the connecting rods are fixedly connected with pistons, and the pistons are located in the air cylinder. The air compressor is fast in heat dissipation and high in efficiency.

An engine includes a cylinder and a cylinder head stacked on an upper portion of a crankcase, an electronically controlled throttle interposed in an intake passage behind the cylinder head, and an exhaust pipe extending rearward from the cylinder head through a side of the cylinder. The electronically controlled throttle includes a throttle valve provided in the intake passage and an actuator that opens and closes the throttle valve. The actuator is disposed on an opposite side of the exhaust pipe with respect to a vehicle center line extending in a vehicle front-rear direction.

This engine system is provided with: an engine including a cylinder and a piston housed in the cylinder; an air tank; an air supply system including a starting air line for guiding compressed air stored in the air tank into the cylinder as starting air of the engine; and a fuel gas supply system for supplying fuel gas into the cylinder. The engine further includes a crankshaft located below the piston for driving the piston, and a crankcase housing the crankshaft. The air supply system further includes a bleeding line for bleeding compressed air flowing through the starting air line and guiding the compressed air to the crank chamber in the crankcase.

The utility model provides a split type crankcase for a refrigerator compressor, and relates to the technical field of compressor crankcases, when the temperature of lubricating oil is too high, a cooling box absorbs heat and cools the lubricating oil, meanwhile, cooling liquid enters a liquid collecting box and heat dissipation fins through a connecting pipe for cooling, and meanwhile, a fan is used for auxiliary operation. When the temperature is too low, the heating rod is used for heating the lubricating oil, the temperature difference controller is used for controlling and adjusting, the situation that the lubricating effect is influenced by too high or too low oil temperature is avoided, mechanical abrasion is reduced, and the lubricating effect is improved, machine abrasion is reduced, working performance is enhanced and the service life is prolonged by keeping the temperature of the lubricating oil within a certain range.

The present invention discloses an all-terrain vehicle and its engine. The engine includes: a cylinder provided with an exhaust port and a first cooling channel; a crankcase disposed below the cylinder, the top of the crankcase being spaced a predetermined distance from the exhaust port, the crankcase including a second cooling channel communicating with the first cooling channel; a water pump disposed on one side of the crankcase; a cylinder inlet pipe, one end of the cylinder inlet pipe being connected to the water pump, the cylinder inlet pipe being fixedly attached to the top of the crankcase and spaced apart from the cylinder, and the other end of the cylinder inlet pipe communicating with the second cooling channel. Thus, the cylinder inlet pipe and the exhaust pipe can be effectively spaced apart further, so that the high-temperature exhaust pipe can be prevented from affecting the low-temperature cylinder inlet pipe, the cooling water temperature of the cylinder inlet pipe can be effectively reduced, the working reliability of the engine can be ensured, and the fuel efficiency of the engine can be improved.

A lubricant distribution system for supplying lubricant. The system includes a reservoir for lubricant and a pump assembly for pumping the lubricant. The pump assembly includes a crank case having a crank assembly that is insertable into and removable from a housing of the crank case without disassembly of the crank assembly, to provide ease of assembly and disassembly of the crank case. The system also includes a shut-off valve stopping the refilling of the reservoir with lubricant. The shut-off valve includes a blocker for preventing the flow of lubricant to the reservoir and an actuation surface for positioning the blocker to prevent the flow of lubricant. For overfill protection, the actuation surface is movable relative to the blocker. The system also includes a mount with a one-way valve mounted thereto. The one-way valve is removable from the mount for easy replacement or cleaning of the one-way valve.

The invention relates to a drive unit (1) for a motor vehicle, comprising an internal combustion engine (2) which has a crankcase (3) and a crankshaft (20) rotatably mounted on the crankcase (3) and at least partially located within the crankcase (3), via which torques for driving the motor vehicle can be provided by the internal combustion engine (2). A separator (21) is provided, which has a line (22) through which a liquid mixture containing oil and water mixed with the oil can flow. A centrifugal separator (23) is also provided, which can be supplied with the mixture flowing through the line (22) and by means of which the oil can be separated from the water.