30results about How to "Guaranteed fuel supply" patented technology

The invention discloses a high-low pressure lubricating system for a high power plunger pump. The system comprises a high pressure oilway and a low pressure oilway. The high pressure oilway lubricatesa connecting bearing bush and a crosshead bearing bush in the plunger pump, and the low pressure oilway lubricates a crankshaft bearing, a crosshead slide rail, a reduction box bearing and a reduction box gear pair in the plunger pump. The system has the beneficial effects that oil-taking is carried out by the high pressure oilway and the low pressure oilway, and the high pressure oilway lubricates the connecting bearing bush and the crosshead bearing bush in the plunger pump, and the low pressure oilway lubricates the crankshaft bearing, the crosshead slide rail, the reduction box bearing and the reduction box gear pair in the plunger pump; by supplying oil by two oil pumps, the oil supply mount of each oilway can be better guaranteed, lubricating oil is distributed better, the problem that the lubricating oil amount of each lubricating point is insufficient as the lubricating oil is not distributed uniformly due to too many lubricating branches is avoided, the utilization ratio of the lubricating oil is improved and abnormalities are reduced; the high pressure oilway and the lower pressure oilway adopt two-stage filtration, so that impurities in the lubricating oil can be reduced and the service lives of parts of the plunger pump are prolonged.

The invention provides a variable-displacement gear-type oil pump comprising a pump cover 1, a pump body 2, a driving gear 3, a driving shaft 4, a transmission gear 5, adjustment valve components 6, a driven shaft 7, a segmental sliding block 8, a driven gear 9, a whole-circle sliding block 10 and a spring 11, wherein the driving shaft 4 is mounted in the axial hole of the pump body 2 and the pump cover 1; the transmission gear 5 is in press fit with the outer end of the driving shaft 4; the driving gear 3 in interference fit is mounted in the middle of the driving shaft 4 to constitute a transmission component; the driven shaft 7, the segmental sliding block 8, the driven gear 9, the whole-circle sliding block 10 and the spring 11 constitute a variable component; the adjustment valve components 6 are arranged at intervals on the outer edge of the segmental sliding block which is separated from the driving shaft 4; and the transmission component of the driving gear 3 and the variable component of the driven gear 9 are arranged oppositely, and the transmission component of the driving gear 3, the variable component of the driven gear 9 and the adjustment valve components 6 can be combined into the variable-displacement gear-type oil pump. Accordingly, the invention can reduce the temperature of the lubricating oil, improve the lubricating performance of the engine oil, reduce the power loss of the engine, improve the efficiency and economical efficiency of the engine and reduce the production cost.

The invention discloses a parallel system of multiple high-pressure cavity compressors. Due to the design of an inverse U-shaped pipe, an overflow pipe and an oblique main pipe, the refrigerating machine oil reflowing from an oil separator is prevented from flowing back to compressors when all the compressors stop running, and more oil reflowing from the oil separator can be stored in a vapor-liquid separator through the overflow pipe so as to prevent liquid blockage; when the compressors run in low loads and the coolant flow rate of an air suction pipe is low, the oil can be prevented from flowing back to the vapor-liquid separator; after a certain oil quantity is accumulated in the oblique main pipe, the oil is directly recycled to the compressors, so that the oil supply of the compressors is ensured; and the system can avoid liquid compression or liquid blockage of the compressors in each state of the compressors, so that the reliability of the compressor is improved.

The invention relates to a fuel-cooled type evaporating pipe structure. The evaporating pipe structure is applicable to engines and combustion chamber components of other burners, a closed fuel cooling cavity is formed between an evaporating pipe inner sleeve and an evaporating pipe outer sleeve, a fuel inlet pipe extends into the fuel cooling cavity in the outlet section position of the evaporating pipe, at least one row of fuel nozzles evenly distributed in the circumferential direction are arranged along the inlet section of the evaporating pipe inner sleeve, grooves communicating with one another are formed in the outer surface of the evaporating pipe inner sleeve, and fuel is delivered to the outlet section from the inlet section of the fuel cooling cavity along the grooves and is sprayed into the evaporating pipe at the inlet section. According to the structure, the fuel arrives at the fuel nozzles at the inlet section of the evaporating pipe from the inner cavity of the outlet section of the evaporating pipe and cools the wall surface of the evaporating pipe, and thermal state ablation protection of the evaporating pipe is completed; each way of fuel is preheated independently, the preheating degree of the fuel is increased, and the evaporating and premixing effect of the fuel is enhanced. By the aid of the overall design, cooling protection of the evaporating pipe is realized, and the service life is prolonged; high-intensity preheating of the fuel is realized, and the evaporating and premixing degree is increased.

A motor vehicle fuel tank It belongs to the field of fuel tank, comprises a tank body and an oil suction pipe, A partition plate is arranged inside the tank body to divide the tank body into a crude oil tank and an oil suction tank, The filling port is located in the crude oil tank, As that space length of the oil suction tank is small than the space length of the crude oil tank, the suction pipeextends into the suction tank to suck fuel, As that oil is supply by extending the oil suction pipe into the oil suction tank with small space length, The risk that the original suction pipe can not suck oil due to the excessively long original tank body can be reduced, and since the liquid level change of the suction tank with the smaller space length is far smaller than that of the original tankwith the larger space length when the whole tank is inclined, the fuel supply can be ensured when the suction pipe can face the gradient of the shorter distance.

The invention relates to an automobile oil delivery pump, in particular to a diesel oil delivery pump assembly for a gradient self-adaptation system. The oil delivery pump assembly comprises a flange,a shell and an oil delivery pump body. The oil delivery pump assembly is arranged in a fuel oil tank and located at the opposite end of an oil sucking pipe of the fuel oil tank, it can be guaranteedthat the position near the oil sucking pipe is always filled with fuel oil, and normal fuel oil supply of an engine is guaranteed. The oil delivery pump assembly is fixed to the fuel oil tank throughthe flange, the shell of the oil delivery pump assembly abuts against the interior of the bottom of the fuel oil tank, the bottom of the flange and the shell are connected through elastic connecting pipe columns, it can be guaranteed that the oil delivery pump assembly is firmly mounted in the fuel oil tank and does not shake at will along with operation of a vehicle, and under the condition thatthe plane rigidity of the metal fuel oil tank is poor, and the bottom of the metal fuel oil tank is uneven, the elastic connecting pipe columns can also compensate for the bottom unevenness of the fuel oil tank.

The invention provides a motorcycle antiskid brake system structure which comprises a motorcycle frame unit and steering handles. The handles are arranged on a motorcycle head cover in a covering mode. The motorcycle head cover is provided with a console. The handles are provided with an antiskid brake system unit. The holding parts of the handles are provided with braking pull handles and a brake oil pump. The system unit comprises a power motor, a brake body and a controller. The power motor and the controller are connected to the brake body. The brake body is provided with a brake oil pipe combination part. The combination part is connected with disc brake calipers and the brake oil pump respectively through a disc brake calipers oil pipe and a brake oil pump oil pipe. The system unit is fixed to the concave parts of the handles through a support and is covered by the motorcycle head cover. By means of the motorcycle antiskid brake system structure, the disc brake calipers oil pipe can be connected to the disc brake calipers directly downwards from the handles, and even dispersion is conducted through the disc brake calipers oil pipe longer in length in the bending process of the disc brake calipers oil pipe. Losses caused by excessively bending of the disc brake calipers oil pipe are avoided, the oil supply quantity of the disc brake calipers oil pipe is guaranteed, and the system unit is actually made to control the disc brake calipers to act.

The invention belongs to the technical field of aviation, and relates to an engine aerial test hydraulic load simulating device, in particular to a method for adjusting return oil pressure of a hydraulic pump shell. According to the method for adjusting the return oil pressure of the hydraulic pump shell, return oil of the hydraulic pump shell returns to a hydraulic oil tank through different pipelines by powering on and powering off of an electromagnetic directional valve under limited conditions in an engine aerial test, and it is ensured that the return oil pressure of the hydraulic pump shell meets the requirement for work of a hydraulic pump.

The utility model discloses a Freon oil separator, wherein, the internal end of an air inlet pipe (4) is connected with a silencer (3); the front end of the silencer (3) is towards to a gland (1); an electric heater interface (24) and an oil switch interface (25) are positioned on the gland (1); the oil switch interface (25) is arranged on the top of the electric heater interface (24). Engine oil separation efficiency is increased from 2000 ppm in the past to 20 ppm now.

The invention relates to the technical field of automatic transmissions, and provides a starting clutch for a transmission. The starting clutch comprises a piston device and a friction device. The friction device comprises a friction plate set, an inner hub and an outer hub. An oil cavity is formed between the inner hub and the friction plate set. The piston device comprises a main piston and a balance piston, and a balance piston cavity is formed between the main piston and the balance piston. The main piston is arranged on a piston support. The piston support is provided with an oil supply part, an oil supply channel is formed in the oil supply part, a sealing steel sleeve is arranged on the inner side of the piston support, and the sealing steel sleeve is provided with a sealing part. When oil is supplied, part of hydraulic oil enters the balance piston cavity through a first oil way, the other part of the hydraulic oil directly enters the oil cavity of the friction plate set, and the supplementing efficiency of the hydraulic oil is improved; the sealing steel sleeve extends to the inner side of the oil supply part, and a first sealing element is arranged, so that the hydraulicoil is prevented from flowing away from the gap of the clutch, and waste of the hydraulic oil is avoided; and meanwhile, the oil supply amount of the friction plate set is ensured.

The invention discloses a rotary compressor comprising a shell, a motor and a compressing mechanism, wherein the shell comprises a lower shell assembly; the compressing mechanism comprises a main bearing, an air cylinder and an auxiliary bearing assembly; the auxiliary bearing assembly comprises an auxiliary bearing comprising a hub part and a flange part; when the delivery volume V of a compression chamber is smaller than 13cm<3>/rev, 0.1<=P1/P2<=1.2; when 13cm<3>/rev<=V<=24cm<3>/rev, 0.1<=P1/P2<=1.5; when V>24cm<3>/rev, 0.1<=P1/P2<=2; and P1=H1/H2, P2=H3/H4, H1 represents for a vertical distance from the center of the lower surface of the hub part to the lower shell assembly, H3 represents for a vertical distance from the edge of the lower surface of the flange part to the lower shell assembly, and H2 and H4 respectively represent for the heights of the auxiliary bearing assembly and the air cylinder. According to the rotary compressor disclosed by the invention, the quantity of a refrigerant which is stored in an oil pool and is dissolved into refrigerating machine oil can be reduced, the dissolution viscosity of the refrigerating machine oil is increased, and the oil supply and supplied oil quality of the rotary compressor are ensured.

The invention relates to the technical field of water turbine rotor machining, and discloses a water turbine sliding rotor inclined oil hole machining method which comprises the following steps that 1, a step is turned on the outer circumference of a sliding rotor; 2, a drill bit positioning sample plate and square iron are installed and scribed; 3, proofing and punching holes in the steps; 4, aligning the center of the initial inclined oil hole; 5, drilling a guide hole; 6, drilling an inclined oil hole; 7, aligning the centers of other inclined oil holes; and 8, repeating the step 5 and the step 6. Alignment of the inclined oil hole of the sliding rotor is more convenient and faster, the manufacturing precision of the inclined oil hole is improved, the waste product yield is reduced, and the oil supply amount of the inclined oil hole is guaranteed.

A compressor comprises a sealed container having: an oil accumulation space that accumulates oil; a compression mechanism portion that is accommodated in the sealed container and that compresses a working gas flowing into the sealed container; and a drive shaft that drives the compression mechanism portion, the drive shaft having an oil supply flow channel formed therein. The compressor also comprises an oil supply pump that is driven by the rotation of the drive shaft and that supplies the oil accumulated in the oil accumulation space to the oil supply flow channel of the drive shaft, and a bearing to which the oil is supplied from the oil supply flow channel and which supports the rotation of the drive shaft. A gap between the bearing and the drive shaft serves as a bearing flow channel through which the oil flows, the gap being set such that, within the oil flow channel in the oil supply pump, the flow channel resistance of a part of a clearance flow channel is less than the flow channel resistance of the bearing flow channel.