Nanjing University of Aeronautics and Astronautics

Copeland Climate Technologies (suzhou) Co. Ltd.

Copleand Climate Technologies (suzhou) Co. Ltd.

Nanjing Panda Electronics Co., Ltd.

Yue Zhang

Ji Liang

Huijun Tan

Chao Li

Chao Wang

Liang Chen

Xiaoyan Wang

Litao Liu

Hexia Huang

Youchao Sun

Yuan Qian

Xuzhou Guo

Fajia Sheng

Yanchun Han

Honglan Wu

Yazhou Liu

Ziyun Wang

Hua Xu

Disclosed is a vehicle-road collaborative lane-changing risk assessment method based on a coordinate transformation, including: parsing vehicle marshaling information of a vehicle-road collaborative platform to obtain driving data of involved vehicles; determining a two-dimensional coordinate system that takes a lane-changing vehicle as a center point; converting a geographic coordinate system into a spatial coordinate system, and mapping the same into the two-dimensional coordinate system to complete the transformation from the geographic coordinate system to a real-time plane coordinate system; establishing a risk assessment model; inputting driving data and expected values of the involved vehicles during the lane changing into the risk assessment model for computational analysis and simulation; and exploring an influence of the driving data on a lane-changing risk to identify a factor that has a greatest influence on the lane-changing risk.

Vehicle-road collaborative lane-changing risk assessment method based on coordinate transformation

The present invention discloses an internal-parallel inlet with mode conversion combined with variable geometry adjustment, which comprises a high-speed channel, a low-speed channel, a mode conversion component, a variable geometry component and a motor actuating component. When the inlet is in a low-speed mode, the variable geometry component adjusts the throat area and the internal contraction ratio of the inlet. When the flight Mach number is in a range of the mode conversion Mach number, the mode conversion component and the variable geometry component work simultaneously. When the inlet is in a high-speed mode, the mode conversion component is combined with the variable geometry component to adjust the throat area and the internal contraction ratio of the inlet. The present invention also provides a method for controlling the inlet.

Internal-parallel inlet with mode conversion combined with variable geometry adjustment

Disclosed are a main bearing seat for a scroll compressor, and a scroll compressor. The main bearing seat comprises substantially ring-shaped thrust parts for supporting a compressing mechanism of the scroll compressor, and a main part body provided with a bearing to support a driving shaft of the scroll compressor, wherein multiple suspension parts extending in a radial direction of the scroll compressor are provided in the thrust parts, and the suspension parts are arranged in an axial direction of the scroll compressor. The main bearing seat can adjust the stiffness of the thrust parts to better achieve stiffness matching and deformation coordination with a bottom face of a movable vortex, thereby increasing the effective contact area on a contact side of a thrust surface to achieve more uniform contact stress distribution and reduce the wear, and providing an appropriate gap on a non-contact side to facilitate lubrication.

Main bearing seat for scroll compressor, and scroll compressor

A scroll compressor comprising: a fixed scroll and a moving scroll, the moving scroll being configured to be capable of orbiting relative to the fixed scroll in order to compress fluid; a main bearing base supporting the moving scroll; and an axial flexible mounting mechanism, the fixed scroll being connected to the main bearing base by means of the axial flexible mounting mechanism, such that the fixed scroll can move a predetermined distance along the axial direction, the axial flexible mounting mechanism comprising a bolt and a sleeve arranged on the outer circumference of the bolt, the sleeve comprising in the axial direction a first section in contact with the main bearing base and a second section in contact with the fixed scroll, and the first section being configured such that the bending rigidity in the radial direction is different to the bending rigidity in the tangential direction.

Scroll compressor

A scroll compressor includes a fixed scroll, a movable scroll, a main bearing housing and an axial compliance mounting mechanism. The fixed scroll is engaged with the movable scroll to compress a working fluid. The main bearing housing has a bearing surface for supporting a movable scroll end plate. The fixed scroll is fixedly connected to a connecting portion of the main bearing housing by the axial compliance mounting mechanism so that the fixed scroll can move in the axial direction by a predetermined distance. The fixed scroll further includes a flange extending radially outward from a circumferential wall portion, having an axial geometric center position between a first surface and a second surface and positioned such that the axial geometric center position is closer to the movable scroll end plate than the axial middle position thereof. The structure can prevent or reduce damage to the axial compliance mounting mechanism.

A main bearing housing assembly for a scroll compressor and a scroll compressor having the main bearing housing assembly. The main bearing housing assembly comprises: a main bearing housing; and a thrust plates, the thrust plate being provided at the top of the main bearing housing, and comprising a thrust surface located at the top and in surface contact with the bottom end surface of a scroll assembly of the scroll compressor; the thrust plate comprises: at least one oil inlet hole; a closed oil chamber, the closed oil chamber being formed in the thrust plate; and at least one oil outlet hole, the opening of the at least one oil outlet hole being exposed to the thrust surface; and the at least one oil inlet hole is in communication with the at least one oil outlet hole by means of the closed oil chamber.

Main bearing housing assembly and scroll compressor having the main bearing housing assembly

The present invention discloses a supersonic inlet with synchronous adjustment of capture area and throat area, wherein the throat area may be adjusted by providing a movable throat section, while the capture area may be adjusted by providing a movable cowl section at the front end of the cowl lip, thereby realizing the effect that the capture area and the throat area of the inlet may be adjusted in synchronization. Meanwhile, the present invention also provides a control method and a design method of the above-mentioned inlet. The present invention greatly simplifies the actuation system and control system, significantly reduces the weight of the accessory system, and enables the performance of the inlet within a wide envelope range to be maintained in an excellent state.

Supersonic air intake passage capable of achieving synchronous adjustment of capturing area and throat area

Growing community of inventors

Jiangsu, China

Yue Zhang