1\ there is some difference between 派 and 送。派 means someone or something is sent to some place with an order,but 送 just means to send something or someone to another place 2、just a little difference。if you ask someone 什么时候过来,they may answer TIME RANGE (morning,afternoon,or evening ect);if you ask some 什么时间过来,they may answer 9 o'clock,10 pm or e ct, which is more accurate 3,correct