Vapor Injection Enhancement in Scroll Compressors

A scroll compressor design that improves suction stability and prevents damage to the scroll's radial clearance at the suction end. The design modifies the conventional scroll configuration by introducing a reinforced suction end section with a thicker wrap thickness compared to the rest of the scroll. This section is positioned at the edge of the scroll where the suction pipe penetrates the casing, providing additional radial clearance and protection against head deflection. The reinforced suction end section ensures that the radial clearance remains adequate even during high-temperature operation, preventing damage to the scroll's radial clearance and maintaining compressor reliability.

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A scroll compressor design that enables efficient economizer flow into the compressor through a novel intermediate pressure chamber. The chamber, located between the non-orbiting scroll member and the compressor housing, receives working fluid from the economizer and directs it to the compression chambers through a series of intermeshed scroll members. This configuration eliminates the need for complex economizer connections while maintaining the conventional scroll compressor architecture.

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A refrigeration cycle device with a scroll compressor that enables efficient refrigerant flow management through a novel injection circuit configuration. The device comprises a scroll compressor, radiator, high-pressure side pipe of a supercooling heat exchanger, decompression device, and evaporator. The injection circuit branches from between the radiator and decompression device, with the scroll compressor receiving refrigerant from the injection circuit via the expansion valve and low-pressure side piping. The injection circuit splits into two branches: one communicating with the intermediate chamber injection port and the other with the suction chamber injection port. This configuration allows precise control over refrigerant flow between the compression and expansion chambers, enabling efficient operation of the scroll compressor while maintaining reliable refrigerant circulation.

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A scroll compressor that improves the cooling performance of the scroll mechanism by optimizing refrigerant flow through the scroll and discharge port. The compressor features a casing with a discharge cover that divides the space into high-pressure and low-pressure regions along the axis. An orbital scroll rotates eccentrically in the low-pressure region, while a fixed scroll connects between the discharge cover and orbital scroll. The compressor includes an annular injection space surrounding the discharge port and a communication path connecting the injection space to the low-pressure region. An external injection pipe delivers refrigerant into the injection space. This design enables precise control of refrigerant flow through the scroll and discharge port while maintaining efficient cooling performance through the optimized flow path.

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A horizontal scroll compressor with an innovative jet enthalpy-increasing mechanism that eliminates the conventional asymmetric expansion angle design challenge. The compressor features a unique configuration where the enthalpy-increasing hole is connected to both the stationary and movable scroll, with a pressure taking channel in the stationary scroll. This integrated design eliminates the need for separate pressure chambers and pressure taking holes, while maintaining the same operational principles as conventional scroll compressors. The integrated pressure taking channel in the stationary scroll provides a stable and reliable means of pressurizing the scroll, ensuring consistent scroll performance and pressure distribution.

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A jet enthalpy augmentation bypass structure for scroll compressors that improves low-temperature heating capacity. The structure comprises a fixed scroll with a spiral vortex cavity, a moving scroll, and a frame. The fixed scroll has a series of jet enthalpy increasing holes connected in sequence from the back to the inside, with the holes communicating with the middle section of the vortex cavity. The jet flange on the fixed scroll has a bottom that sinks into the mounting counterbore, with the inner end of the jet enthalpy tube fitting into the counterbore. This configuration enables continuous flow of refrigerant into the vortex cavity, where it can be further compressed, while maintaining optimal exhaust temperature.

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A scroll compressor with a dual injection mechanism that enables simultaneous liquid and air injection through a single scroll, while maintaining reliability and stability. The compressor incorporates a unique injection mechanism where liquid and air are injected through the scroll's fixed and moving sections, with a pressure check valve system to manage pulsation and prevent vibration. This design enables efficient operation of both cooling and heating applications by providing both cooling and heating capabilities through a single scroll mechanism.

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A scroll compressor with a dual injection mechanism that enables simultaneous liquid injection and jet control functions. The compressor features a fixed scroll assembly with a frame, fixed scroll teeth, and moving scroll teeth, where the fixed scroll teeth are inserted and installed on the frame to form a compression cavity. The compression cavity is divided into suction from the beginning of the tail to the end of the center. The compressor includes an air suction hole connected to the suction cavity on the side, an exhaust hole connected to the exhaust cavity in the middle, and an exhaust hole discharging the compression cavity. The compressor also includes 2 sets of injection check valve mechanisms, with the injection check valve mechanism including a check valve baffle, check valve plate, and check valve spring.

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A scroll compressor with a novel design that addresses the challenges of compact scroll compressors. The compressor features a fixed scroll and a movable scroll, with the movable scroll translating relative to the fixed scroll. The compressor includes an exhaust check valve, an air jet enthalpy increasing channel, and a mounting structure that limits the distance the valve plate moves away from the exhaust port. The mounting structure incorporates arc-shaped surface portions that guide the valve plate along a controlled path, enabling precise control of the valve plate's movement while maintaining optimal flow dynamics. This design enables efficient implementation of the air jet enthalpy increase system in compact scroll compressors without requiring additional space for the mounting structure.

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Scroll compressor with improved gas injection management for efficient refrigerant compression. The compressor features a unique injection port configuration where the injection holes are arranged in a specific pattern to achieve optimal overlap with the swirl wrap laps. This configuration enables the compressor to maintain sufficient injection volume while minimizing dead space between the compression chambers. The design ensures continuous gas flow into the compression chambers, even when the injection port holes are not perfectly aligned with the swirl wrap laps.

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A scroll compressor with enhanced steam injection capability through a novel double-jet enthalpy configuration. The compressor features a scroll assembly with a fixed scroll and a moving scroll, where the fixed scroll houses the steam injection enthalpy tube while the moving scroll enables continuous flow through the shell. The fixed scroll's end is connected to the shell's exhaust port, ensuring continuous steam injection throughout compression. This design eliminates the conventional pulsation issue by maintaining the enthalpy-increasing tube in continuous flow, while the moving scroll enables efficient refrigerant delivery through the shell. The compressor maintains its operational reliability while expanding its refrigerant capacity and enabling wider market applications.

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Enhanced vapor injection scroll compressor with improved performance and sealing in high-pressure applications. The compressor features a novel pressure management system where the compression chamber is connected to a back pressure chamber through strategically positioned medium-pressure passages. This configuration prevents scroll separation during high-pressure operation by guiding the compression chamber pressure through the medium-pressure passages to the back pressure chamber, while maintaining axial sealing between the scrolls. The system enables rapid pressure increase in the back pressure chamber, enabling faster compressor startup and improved performance compared to conventional designs.

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A compressor for a refrigeration system that enhances performance through optimized pressure management. The compressor features a scroll-type mechanical compression unit with an injection port positioned closer to the scroll's centerline compared to conventional designs. A check valve is strategically positioned to prevent backflow while allowing the refrigerant to flow through the injection port. The check valve is integrated into a cover member that houses the scroll and injection port, with a refrigerant passage through the cover facilitating efficient refrigerant distribution. This innovative configuration enables improved pressure management near the check valve while maintaining effective refrigerant flow.

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A scroll compressor with enhanced enthalpy management through an integrated air jet enthalpy channel. The channel comprises an upper cover air jet enthalpy increasing channel, an upper cover air jet enthalpy increasing first channel, and an upper cover air jet enthalpy increasing second channel. The enthalpy first channel and the upper cover air jet enthalpy increasing second channel are connected to the upper cover air jet enthalpy increasing main channel. This configuration enables low-temperature gas to bypass the static scroll and enter the compression chamber through the air jet enthalpy channel, thereby reducing exhaust temperature and improving energy efficiency.

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Scroll compressor with improved mass production efficiency and reduced defects through a novel injection system. The compressor features a scroll rotor with a spiral blade that forms a compression chamber, and a fixed scroll with injection ports that supply refrigerant to the chamber through parallel connections. The fixed scroll's injection ports are positioned in opposite directions, enabling a bypass path for discharged refrigerant that can be injected into the chamber. This design eliminates the conventional connection issues associated with conventional injection systems, resulting in improved mass production productivity and reduced defects.

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An economized vapor compression heat transfer system with improved compression capacity and simplified fabrication. The system employs a scroll compressor with optimized scroll geometry and injection configuration that enables efficient compression while reducing manufacturing complexity. The scroll design features a circumferential injection plenum for reduced enthalpy working fluid flow, which enables higher compression capacities compared to conventional scroll designs. The system also incorporates a novel injection port configuration that facilitates reduced enthalpy working fluid flow while maintaining sufficient pressure in the back chamber. This design enables production of large displacement compressors with reduced material requirements and fabrication complexity compared to conventional scroll designs.

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A scroll compressor that enhances efficiency through a novel configuration of the scroll and injection channels. The scroll comprises a fixed scroll with an end plate and a fixed scroll extending from the end plate. The movable scroll and fixed scroll cooperate to form a compression chamber for compressing a medium. An injection channel is formed in the end plate of the stationary scroll, leading to the compression chamber. The injection channel has a first opening on the side of the stationary scroll facing the fixed scroll, a second opening on the side away from the fixed scroll, and a check valve that allows medium injection through the injection channel while preventing it from flowing back through the check valve.

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Enhanced heat pump with improved performance in both heating and cooling modes. The heat pump comprises a jet flame-enhanced scroll compressor, featuring an exhaust port and a suction port on one side, and a steam injection port on the opposite side. This configuration enables the compressor to utilize both the natural convection of the jet flame and the forced convection through the suction port, while the steam injection port provides additional heat transfer capacity. The exhaust port allows the heat to be expelled, while the suction port enables the compressor to draw in the low-temperature heat. The steam injection port enhances the overall heat transfer efficiency through the enhanced convection process.

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A refrigerant system for inhalation applications that improves insulation efficiency and compression performance. The system incorporates a novel configuration where the refrigerant enters the inhalation circuit through a specially designed insulated section, specifically designed to enhance insulation properties. This section is positioned after the compression room entrance and before the refrigerant enters the inhalation course. The insulated section prevents refrigerant from escaping to the ambient environment, thereby improving insulation efficiency compared to conventional configurations where refrigerant enters the inhalation circuit through the compression room. The insulated section also enables compression efficiency to be maintained through the inhalation process.

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A scroll compressor and refrigeration cycle device that improves reliability and reduces damage to end seals in carbon dioxide-based refrigeration systems. The device incorporates an intermediate injection circuit that injects refrigerant into the compression chamber before the main injection port, preventing the end seal from entering the injection port during eccentric orbiting motion. The flow regulating valve controls the injection rate, ensuring consistent seal performance.

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