689 results about "Engine room" patented technology

The invention provides a ship unmanned aerial vehicle cabin multistage fire alarm system and method based on edge computing, and the system comprises an intelligent shipborne system and a shore-based cloud system, the intelligent shipborne system is disposed in a ship cabin, and has the functions of data collection, data abnormity perception, fire monitoring and multistage early warning; the method is composed of three levels of data acquisition, edge processing and fire decision making. The shore-based cloud system is a cloud end of a shore-based system arranged on the land, has the functions of transmitting and receiving distress signals, storing remote data and tracing large fire accidents, and is composed of a communication unit, a storage unit and an alarm unit. The intelligent ship-borne system is connected with the shore-based cloud system through the satellite communication technology, infrared thermal imaging and multi-source sensing fusion is achieved, the device has the edge processing capacity, the multi-level fire judgment logic and the shore-based remote traceability function, and the device is suitable for the closed, complex and unattended ship engine room environment.

The invention relates to a container ship methanol fuel daily cabin arrangement form, and belongs to the technical field of ship design and manufacture, the container ship methanol fuel daily cabin arrangement form comprises a methanol fuel daily cabin and a methanol fuel preparation room, the methanol fuel daily cabin is arranged on one side of an engine room above a main deck, and the methanol fuel preparation room is arranged on one side of an engine room below the main deck; and the methanol fuel daily cabin and the methanol fuel preparation room are adjacently arranged up and down. For a large container ship, the length of a traditional cabin shed is generally about 6 m, and in order to guarantee the volume of the methanol fuel daily cabin, the width of the methanol fuel daily cabin and the height of a top deck can be adjusted according to needs.

The invention provides a cabin and front floor force transmission structure and a vehicle. The engine room and front floor force transmission structure comprises two side force transmission paths arranged in parallel, and each side force transmission path comprises a front longitudinal beam assembly, a front longitudinal beam rear body assembly, a threshold assembly, a floor longitudinal beam assembly and a middle channel. The front longitudinal beam rear body assembly comprises a front connecting part and three rear connecting parts, and the front connecting part is connected with the front longitudinal beam assembly. The three rear connecting parts comprise the first rear connecting part, the second rear connecting part and the third rear connecting part, and the first rear connecting part, the second rear connecting part and the third rear connecting part are connected with the doorsill assembly, the floor longitudinal beam assembly and the middle channel respectively. Loads can be effectively dispersed through the side force transmission paths arranged in parallel, and the dynamic stiffness is improved. Meanwhile, the connecting structures between the front longitudinal beam rear body assembly and the doorsill, the floor longitudinal beam and the middle channel are simple.

A dozer including a cabin, the dozer includes: an engine room located in front of the cabin, where an engine is disposed; an exhaust gas after-treatment device for purifying exhaust gases emitted from the engine; a first cooling device located in front of the cabin and capable of cooling the exhaust gas after-treatment device; and a second cooling device spaced apart from the first cooling device, with the cabin midway therebetween, and capable of cooling the engine.

The invention relates to the technical field of intelligent ship control, and particularly discloses an area control integration method and system based on an intelligent ship engine room, original operation data and multi-source communication data of equipment in each area of the engine room are collected, a unified real-time state vector is generated through protocol analysis and standardization processing, and a plurality of redundant processing nodes are processed in a unified mode. Synchronizing and verifying state data through a high-speed channel, constructing a global consistent state synchronization set, disassembling composite logic into atomic operation units with state constraints according to an upper-layer instruction and the synchronization set, packaging the atomic operation units into a private instruction sequence bound with the state, executing the instruction sequence by a main node, and executing the state synchronization set by a slave node; seamless switching to a standby node is realized through independent hardware monitoring when a fault occurs, and the standby node continuously executes based on the continuity of a state synchronization set, so that high-reliability uninterrupted operation of area control is realized; according to the method, the problems of instruction semantic distortion and single-point fault risk in heterogeneous equipment integration are solved, and the control accuracy and the intelligent level are improved.

The invention relates to the technical field of hovercraft assembly, and discloses a method for assembling a propeller tower and a short engine room of a hovercraft, which is characterized in that a detection line reference system of a chassis frame and a height marker post is arranged at a ground prefabrication stage, so that the positioning adjustment of the propeller tower and the short engine room is completely completed at a low-altitude site; the operation risk that a scaffold is repeatedly erected and disassembled during high-altitude hoisting of a slipway in a traditional technology is avoided, a three-dimensional space positioning network is constructed by combining the plane datum of the chassis frame and the vertical datum of the height marker post, the precision error in the combining process is reduced, high-altitude closing operation of a traditional slipway stage is moved forwards to the ground site to be completed, and the working efficiency is improved. And the short engine room-paddle tower module only needs to be hoisted and positioned once when the ship body is finally carried, so that the processing period of a slipway is shortened, and the production cost of the hovercraft is further reduced.

The invention provides an ice region ship ventilation system and a ship, and relates to the field of ship manufacturing, and the ice region ship ventilation system is characterized in that a first heater is mounted on an exhaust shutter; a second heater is mounted on the air inlet shutter; a steam heater is mounted in a fan chamber of the ship body; an outdoor temperature sensor is installed outside the ship body and used for detecting the outdoor temperature. An air duct temperature sensor is arranged on an air duct for blowing air in the fan chamber and is used for detecting the temperature of the air duct; the controller is connected with the first heater, the second heater and the outdoor temperature sensor; the cabin fan is arranged in the fan chamber, is controlled by the controller and is used for blowing air; the steam heater is connected with the air duct temperature sensor. The temperature requirement of a sailing cabin in an ice region can be met, the anti-icing, demisting and heating effects are remarkable, the system design is relatively simple, and equipment is convenient to arrange and easy to repair and maintain.

The invention discloses a front cabin structure, an assembly and a vehicle, and the front cabin structure is an integrated die-casting forming part and comprises two side parts and a connecting part connected between the two side parts; each side part comprises a cabin longitudinal beam and a damping tower, the cabin longitudinal beam extends in the length direction of the vehicle, and the damping tower is formed on the upper end face of the cabin longitudinal beam in the height direction of the vehicle; the connecting part comprises a first cross beam and a second cross beam which are distributed at an interval; the first cross beam is formed at the lower end of the cabin longitudinal beam and corresponds to the two damping towers; the rear ends of the cabin longitudinal beams obliquely extend downwards from front to back, the second cross beams are formed at the rear ends of the cabin longitudinal beams, the front sides of the second cross beams are connected with the two cabin longitudinal beams, and the rear sides of the second cross beams are suitable for being connected with a front floor of the vehicle. Wherein part of the rear suspension mounting area is arranged on the first cross beam, and the other part is arranged on the second cross beam; the left suspension installation area and the right suspension installation area are arranged on the two cabin longitudinal beams respectively. On the premise of meeting the function of the front cabin, the number of parts can be reduced, and the weight of the whole vehicle is reduced.

The invention discloses a bevel angle transmission marine gear transmission device, which relates to the technical field of gear transmission, and comprises a box body, an input component, a transmission component and an output component, an ahead running transmission gear is fixed to an input shaft of the input component, and an ahead running driving gear with a clutch and a piston is installed on the input shaft in an empty sleeving mode. And a reversing transmission gear is fixed on a transmission shaft of the transmission part. The invention belongs to the breakthrough of the prior art, and can meet the requirements of inclination of an input shaft, a reversing shaft and an output shaft of a gear box by utilizing the displacement principle of gears with different center distances and the meshing transmission principle of crossed shaft gears. Gears on the three shafts can be mutually meshed and effectively work, the requirement that the high-speed boat inclines relative to the water surface when advancing on the water at a high speed is met, the diesel engine and the gear box are horizontally arranged in the cabin, the output shaft of the gear box outputs at a certain oblique angle, the structure is reliable, the process is easy to implement, and the high-speed boat has the advantages of being reasonable and compact in structural arrangement, high in transmission efficiency, low in cost and the like. And the weight is light.

Systems and apparatuses include a container for a generator set. The container includes a housing including a cooling room structured to support a radiator and a radiator fan within the housing, an exhaust room structured to support an aftertreatment system, an engine room structured to contain the engine and the alternator within the housing, an air intake system positioned adjacent the engine room, and a control room structured to support control equipment for the generator set. The exhaust room may further support after treatment components including a muffler and an exhaust pipe.

The invention discloses a self-priming pump which comprises a pump shell, an impeller and a driving motor. The pump shell is provided with a cavity and a suction flow channel located in the cavity, a driving cavity is formed in the outer wall face of the pump shell and faces the interior of the cavity in a concave mode, the cavity, the driving cavity and the suction flow channel are sequentially communicated, the cavity and the suction flow channel are each provided with a communication opening communicated with the outside, and the side, away from the cavity, of the driving cavity is open. The impeller is rotationally arranged in the driving cavity around the axial direction of the impeller and can drive fluid to sequentially flow through the suction flow channel, the driving cavity and the cavity during rotation; a shell of the driving motor covers the opening of the driving cavity, and a rotating shaft of the driving motor extends into the driving cavity from the interior of the shell, is connected to the impeller and is used for driving the impeller to rotate in the axial direction of the driving motor. According to the scheme, a coupler is not needed for transmission, vibration abnormal sound caused by misalignment of a shaft system is avoided, meanwhile, the overall structure of the self-priming pump is more compact, the size and weight of the self-priming pump are reduced, the space occupied by the overall structure is reduced, installation in narrow space areas such as a marine engine room is facilitated, and practicability is improved.

The invention relates to the technical field of hygienic products, and discloses an intelligent monitoring method and management system for ship pollutant discharge, and the method comprises the following steps: S1, collecting cabin equipment operation parameters and pollutant discharge data through a multi-source sensor network; s2, an early warning threshold value is dynamically calculated based on the environment working condition and the load state; s3, evaluating the health state of the equipment and predicting potential faults; s4, judging the pollutant discharge compliance; s5, executing a multi-stage control strategy according to evaluation and judgment results; in the step S1, the equipment operation parameters at least comprise temperature, pressure, vibration frequency and oil quality indexes. According to the invention, by integrating various sensors and intelligent processing algorithms, real-time monitoring and dynamic adjustment of ship pollutant emission are realized, and ship emission compliance is ensured; meanwhile, the system can evaluate the health state of the equipment in real time, predict potential faults in advance and automatically execute multi-stage response measures, so that the safety, the environmental protection property and the operation efficiency of the ship are improved.

The invention discloses a high-precision ball screw nut grinding device, which belongs to the technical field of grinding machining and comprises a base and a multi-point positioning clamping module. According to the device, the grinding assembly and the thread cutting assembly are arranged in a matched mode, two sets of grinding structures are adopted to grind the nut, compared with a traditional grinding structure, the contact area between the two sets of grinding structures and the surface of the nut is greatly reduced, multi-point contact grinding is adopted, and the grinding efficiency is greatly improved under the condition that grinding is not affected. Heat generated by materials during nut grinding can be greatly reduced, cooling liquid does not need to be used for real-time cooling, the cleanliness in a cabin is greatly improved, meanwhile, synchronous cutting of internal threads of the nut can be achieved in the process of external grinding of the nut, subsequent additional machining procedures are not needed, and the machining efficiency is improved. The nut machining efficiency is improved, the grinding thickness can be accurately controlled according to requirements during machining, and the actual application effect of equipment is improved.

The invention relates to a screw ship unloader cabin material collaborative perception and autonomous operation method based on a multi-source laser scanning array. The problems that in the prior art, a single laser scanning system is large in scanning blind area, high in positioning error and poor in hatch recognition stability are solved. The method comprises the following steps: S1, heterogeneous laser scanning array networking; s2, pose difference-IMU deep coupling of motion point cloud distortion suppression is carried out; s3, manually marking target spot binding; s4, point cloud data processing; and S5, multi-stage anti-collision control is carried out. The method has the advantages that the hatch recognition stability and the coal pile model construction precision are remarkably improved; the point cloud is not distorted in a dynamic environment, so that the manual intervention and the accident rate are effectively reduced; and the technical requirements of unattended ship unloading operation are met, and high industrial adaptability is achieved.

The invention relates to the technical field of ship manufacturing, in particular to a ship axis monitoring method and a ship. The ship axis monitoring method comprises the following steps: selecting a plurality of measuring positions on a shaft system along the X direction of a ship; determining an axis horizontal plane according to the base line of the ship and the axis of the stern tube; two measurement mark points are made at the positions, intersecting with the horizontal plane of the axis, of the hull outer plate of each measurement position; initial coordinate values of the two measurement mark points are measured and recorded; in the subsequent carrying process, the deviation coordinate values of the two measurement mark points are measured and recorded again; and comparing the deviation coordinate values of the two measurement mark points with the initial coordinate values of the two measurement mark points, and judging whether the deviation of the axis meets the requirement or not. According to the ship axis monitoring method and the ship, the problem that in the axis monitoring process of an existing stay wire light observation method, the shafting can only be installed after the whole cabin area is carried, and therefore the dock building period is greatly prolonged is solved.

The present invention relates to a work machine, in particular a wheeled loader, having a cabin for the operator of the work machine and having an engine room arranged behind the cabin, wherein the work machine has a drive that is operable with hydrogen; and in that one or more tanks for the reception of hydrogen are present, with the tank or tanks being arranged in a hydrogen fuel system behind the cabin and above the engine room.

The invention provides a ship emergency power generation combined module, a building method and a ship engine room, and the ship emergency power generation combined module comprises a cavity structure, emergency power generation equipment, a fuel pipe system and a cable. The cavity structure is an independent structure formed by splicing a bottom surface structure, a top surface structure and a side wall structure. The top surface structure is provided with a skylight used for hoisting emergency power generation equipment in and out, the top surface structure is provided with a lifting lug, the side wall structure is provided with a cabin penetrating piece used for a cable to pass through, and the side wall structure is provided with a watertight door; a ventilation device is mounted on the cavity structure; the emergency power generation equipment is mounted in the cavity structure; and the fuel piping system and the cable are laid in the cavity structure. According to the ship emergency power generation combined module, the ship emergency power generation equipment, the pipe system and the cable are integrally designed to form a comprehensive unit similar to a ship section form, so that the ship emergency power generation system can be assembled and debugged in advance, and the ship assembly and debugging progress can be integrally improved.

The invention discloses an intelligent optical cable marine engine room management method and system, and the method comprises the steps: collecting the operation state data of each device in a marine engine room in real time through employing an Internet of Things sensor, transmitting the operation state data to a file module in real time, and carrying out the regular calling of the data, so as to adjust the monitoring parameters of each Internet of Things sensor; performing equipment health assessment on the operation state data by adopting an economical efficiency analysis tool, a performance degradation analysis tool and an equipment operation analysis tool, and generating a health assessment report; and generating a coping strategy for abnormal data in the health assessment report based on the expert knowledge base, and matching corresponding historical events and historical maintenance methods thereof in the archive module. According to the invention, comprehensive health assessment is carried out on each device in the ship by using a multi-dimensional analysis tool, the fault prediction accuracy is improved, a coping strategy is rapidly generated in combination with an expert knowledge base and historical data, the decision-making efficiency is improved, the intelligence level of a ship cabin system is promoted, and the safety, environmental protection, economical efficiency and reliability of ship management are improved.

The present invention provides an arrangement structure of a fuel tank for cabins of a ship and electric propulsion, comprising: an electric propulsion system (110) which is arranged in an engine room (111) and provides power produced by a gas turbine (112) as a propulsion force to an electric propulsion motor; a first liquefied gas storage tank (120) which is arranged in a cargo section (A) and supplies a first gas fuel to the gas turbine (112); and a second liquefied gas storage tank (130) which is arranged in a bow section (b) and supplies a second gas fuel to the gas turbine (112), to thereby secure safety and an extra space in the engine room through the arrangement of the second liquefied gas storage tank (130) in the bow.

The invention discloses a seabed dipole-dipole electromagnetic detection system and method carried on a remote control underwater robot, and belongs to the technical field of seabed metal mineral resource fine exploration. The system comprises a remote control underwater robot (ROV), a retractable receiving coil extension bracket, a transient electromagnetic transmitting coil, a transient electromagnetic receiving coil, a transient electromagnetic main engine room and an instrument fixing bracket. The extension bracket is controlled through the hydraulic retraction device, so that the receiving coil is arranged away from the ROV body, and the interference of the equipment body on electromagnetic signals is obviously reduced. The ROV performs low-altitude cruising on the seabed along a preset fine measuring line to acquire transient electromagnetic data, and the actually measured data is corrected in real time by using the full-space seawater environment response in the diving process, so that the system interference is effectively inhibited. According to the method, the high-resolution electromagnetic detection capability of ore bodies such as seabed polymetallic sulfide is improved, and the method is suitable for mineral resource investigation of complex terrains and small-scale regions.

The present invention relates to a ship including a cargo area for storing cargo, a bow area located forward of the cargo area, and a stern area located rearward of the cargo area, the bow area including a bow deck that separates the interior and exterior of the hull, a cabin located above the bow deck, and the cabin having a cross-sectional shape whose width decreases toward the front of the bow.

The invention relates to the technical field of path planning, in particular to a path planning algorithm of an inspection robot and a medium, and the algorithm comprises the following steps: step 1, rasterizing a static marine engine room map which comprises expansion obstacles and topographic features, and based on the topographic features, introducing topographic factors and calculating a topographic weight graph; step 2, acquiring a starting point and a target point, and planning a global static optimal path by using an RA * algorithm based on the terrain weight graph; and step 3, using a rectangular frame screening method to screen out global key points in the global static optimal path. According to the method, different topographic features are used as one of the influence factors of the path cost, the path with small walking difficulty is more reasonable than the path with large walking difficulty, the evaluation index takes energy loss into consideration, and the kinematics law is better met; according to the algorithm, the safety distance of the robot is considered, and path redundancy and frequent turning are reduced.

The method comprises the following steps that a tiller and the upper conical surface of a rudderstock are matched in advance, and steering engine equipment is arranged in a steering engine room in advance; the main deck is provided with a permanent rudderstock hanging opening cover with a sealing cover; when a berth area rudderstock enters a cabin, a false nut tool is installed at the end of the rudderstock, hierarchical regulation and control of the rudderstock angle are achieved through a lifting lug, inclined pulling of a steel wire rope and insertion of round steel into a guide hole, and it is ensured that the rudderstock penetrates into a rudder sleeve along the center line of a rudder system. The problem that the rudderstock obliquely penetrates through the cabin due to the inclination angle of the slipway is solved; the steering engine room is sealed in advance, the rudderstock is precisely put into the room at the millimeter level, and the construction efficiency and quality are remarkably improved.

The invention discloses a zero adjustment method for ship rudderstock installation in a dock stage, and the method specifically comprises the following steps: S1, installing a chain block in a steering engine room according to the spatial arrangement in the steering engine room; s2, an adjusting device is installed on the rudderstock, a chain block is connected with the adjusting device on the rudderstock, and then the rudderstock is hoisted into the rudder sleeve through a crane; s3, enabling the surface of a lower cone of the rudderstock to approach the surface of a rudder blade pinhole through a crane, adjusting the installation angle of the rudderstock through a chain block, and measuring the degree of an included angle between the rudderstock and the center line of a shaft system; and S4, after the adjustment of the angle of the rudderstock is completed, the rudderstock is descended and installed in the rudder sleeve through the crane. Adjustment is carried out through the chain blocks connected to the two sides of the nut, the angle of the rudderstock is adjusted by adjusting the lengths of chains of the chain blocks on the two sides, manpower is saved, meanwhile, sliding is prevented when the angle of the rudderstock is adjusted through the arrangement of the fixing module, and use safety is improved.

The utility model discloses a composite cabin ventilation system meeting dynamic positioning redundancy requirements, which comprises an exhaust shutter, an air inlet shutter and a fan which are positioned in an upper cabin, a structural air duct positioned in a middle cabin and a diesel generator set positioned in a lower cabin, and the air inlet shutter, the fan, the structural air duct and a cavity of the lower cabin are sequentially communicated. The cavity of the lower-layer cabin is communicated to an exhaust shutter through a chimney; and an air brake for controlling the ventilation quantity is arranged between the fan and the structural air duct. According to the utility model, a water cooling mode is utilized to completely replace the heat dissipation air volume of a main part during the design of a conventional cabin ventilation system, and the discharge capacity of a ventilation fan and the size of an air duct are reduced. The internal circulation cooling jet fan does not need to be started, normal operation of the ship can be guaranteed through the frequency conversion fans with the small number and power, and energy conservation and emission reduction are achieved. All the frequency conversion fans and the internal circulation cooling jet fans can work at the same time, the use requirements of tropical areas under extremely hot working conditions are met, and the working condition adaptability of ships is improved.

The utility model discloses a ship engine room monitoring fire alarm device which comprises a water tank, a smoke sensor is installed on the bottom face of the water tank, an alarm is installed on the outer surface of the water tank, two vertical plates are fixedly connected to the bottom face of the water tank, and rotating shafts are rotationally connected to the side faces, close to each other, of the two vertical plates. The ends, close to each other, of the two rotating shafts are jointly and fixedly connected with a spray head, a pump body is installed on the bottom face of the water tank, the input end of the pump body and the bottom face of the water tank jointly communicate with a water pumping pipe, and the output end of the pump body and the outer surface of the spray head jointly communicate with a telescopic pipe. According to the device, through cooperation of the motor, the threaded rod, the moving plate and the supporting plate, by means of work of the motor, the moving plate can ascend and descend on the threaded rod, the supporting plate can be driven when the moving plate moves, and the supporting plate can push or pull a spray head, so that adjustment of the angle of the spray head is achieved, the spray head can conduct multi-angle spraying, and the fire extinguishing effect is further guaranteed.

The invention relates to a construction method of a wind generating set. The construction method comprises the steps that a cabin, a hub, a plurality of blades and a plurality of tower drum sections are transported to an area where a fan foundation is located; one tower drum section is hoisted to the position above the draught fan foundation, and a guide structure arranged on the tower drum section and a locking structure arranged on the draught fan foundation are matched in a locking mode and fixed through a fastener; the next tower drum section is hoisted to the position above the tower drum section connected with the draught fan foundation, and the two tower drum sections are locked and matched through a guide structure and a locking structure and fixed through fasteners; assembling the engine room, the hub, the plurality of blades and one tower drum section into a machine head main body; and the machine head main body is hoisted to the position above the fan foundation, and the tower drum section of the machine head main body and the other tower drum section are locked and matched through the guide structure and the locking structure and are fixed through a fastener. The installation requirement of the wind generating set in the deep sea field can be met, and the installation difficulty and cost are reduced.

The invention discloses a method for merging and matching gas test items of an LNG transport ship. The method comprises the following steps: synchronously carrying out a self-flow gas supply mode large-flow combustion test of a GCU at the cold cabin last stage of a first cold cargo cabin; after the cold cabin last phase of the first cold cargo cabin is finished, a GMS (Gas Management System) controls the GCU flow test process to be synchronously carried out; the forced vaporizer maximum flow function debugging and the compressor air supply mode endurance test of the GCU are synchronously carried out; the energy consumption test of a host under different navigational speeds and different powers in an unmanned cabin project in a cabin gas mode and the GMS automatic control forced vaporizer flow test are synchronously carried out; and the LNG ship cargo hold temperature rise process and the ship speed measurement process are synchronously carried out. According to the system and the method, the test time, the test cost and the carbon emission can be reduced, the stability and the safety of a gas system are improved, the operation efficiency of the LNG transport ship can be improved, and contribution can be made to global environmental protection career.

The utility model discloses a waterproof raft fishing wheel which comprises a body. A clutch transmission shaft; a drive shaft; a first waterproof ring mounting hole is formed in the outer side of the clutch transmission shaft mounting hole, a first waterproof ring is mounted in the first waterproof ring mounting hole, a first rubber ring sleeves the root of the first main shaft screw, a second waterproof ring mounting hole is formed in the outer side of the driving shaft mounting hole, and a second waterproof ring is mounted in the second waterproof ring mounting hole. A second waterproof ring mounting hole is formed in the right end face of the main body cover plate, a second waterproof ring is mounted in the second waterproof ring mounting hole, a through hole corresponding to the line wheel seat is formed in the right end face of the main body cover plate, a third waterproof ring mounting hole is formed in the outer side of the through hole, and a third waterproof ring is mounted in the third waterproof ring mounting hole. The waterproof raft fishing wheel is reasonable in structural design, reliable waterproof measures are taken at all possible water inlet points of the main body, so that the whole cabin is in a completely closed waterproof state, and worries of a fisher are relieved.

A structure for preventing intrusion of rainwater into an engine room includes: an air intake cover that is fixed to an engine cover having an inclined portion where a height gradually lowers from a cabin side to a rear door side; a first rainwater gutter that is disposed below an air intake opening portion of the air intake cover and extends horizontally in a vehicle width direction; a second rainwater gutter that is disposed below the first rainwater gutter, and receives rainwater that flows out from an end portion of the first rainwater gutter in the vehicle width direction and allows the rainwater to flow toward a rear door side; and a third rainwater gutter that is disposed on an inner side of an upper edge of the rear door, receives rainwater that flows out from the second rainwater gutter and discharges rainwater to the outside of an engine room.